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Output Current (A)

Efficiency

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

100P 1m 10m 100m 1 2

D001

3 V

4.2 V

5 V

7 V

9 V

12 V

TPS63070

VIN

PGND

PS/SYNC

VOUT

1.5 Hµ

GND

3x22 Fµ

2x10 Fµ

VIN = 2.0 V to 16 V

VOUT = 2.5 V to 9 V

100 kΩ

VAUX

100 nF

VSEL

FB2

COUT

CIN

CVAUX

10 Fµ

0603

0805

10 kΩ

10 Fµ

0603

0805

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

TPS63070

TPS630701

SLVSC58A –JUNE 2016–REVISED AUGUST 2016

TPS63070 2-V to 16-V Buck-Boost Converter With 3.6-A Switch Current

1 Features

• Input Voltage Range: 2.0 V to 16 V

• Output Voltage Range: 2.5 V to 9 V

• Up to 95% Efficiency

• +/- 1% dc accuracy in PWM mode

• +3% / -1% dc accuracy in PFM mode

• 2 A Output Current in Buck Mode

• 2 A Output Current in Boost Mode

(VIN = 4 V; Vout = 5 V)

• Precise ENABLE input allows

– user defined undervoltage lockout

– exact sequencing

• Automatic Transition Between Step Down and

Boost Mode

• Typical Device Quiescent Current: 50 μA

• Fixed and Adjustable Output Voltage Options

• Power Save Mode for Improved Efficiency at Low

Output Power

• Forced Fixed Frequency Operation at 2.4 MHz

and Synchronization Option

• Power Good Output

• VSEL simply allows output voltage change

• Load Disconnect During Shutdown

• Overtemperature Protection

• Input / Output Overvoltage Protection

• Available in QFN Package

2 Applications

• Dual LI-Ion Applications

• Industrial Metering Equipment

• DSC's and Camcorders

• Notebook Computers

• Ultra Mobile PC's and Mobile Internet Devices

• Personal Medical Products

3 Description

The TPS6307x is a high efficiency, low quiescent

current buck-boost converter suitable for applications

where the input voltage can be higher or lower than

the output voltage. Output currents can go as high as

2 A in boost mode and in buck mode. The buck-boost

converter is based on a fixed frequency, pulse-width-

modulation (PWM) controller using synchronous

rectification to obtain maximum efficiency. At low load

currents, the converter enters Power Save Mode to

maintain high efficiency over a wide load current

range. The converter can be disabled to minimize

battery drain. During shutdown, the load is

disconnected from the battery. The device is available

in a 2.5 mm x 3 mm QFN package.

Device Information

(1)

PART NUMBER PACKAGE BODY SIZE (NOM)

TPS63070 VQFN 2.5 mm x 3 mm

TPS630701 VQFN 2.5 mm x 3 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Simplified Schematic

Efficiency vs Output Current; Vo = 5 V

Summary of content (39 pages)

PAGE 1
Sample & Buy Product Folder Support & Community Tools & Software Technical Documents TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 TPS63070 2-V to 16-V Buck-Boost Converter With 3.6-A Switch Current 1 Features 2 Applications • • • • • • • • • • • • • 1 • • • • • • • • • • • • Input Voltage Range: 2.0 V to 16 V Output Voltage Range: 2.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Device Comparison Table..................................... Pin Configuration and Functions ...............
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TPS63070 TPS630701 www.ti.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com 7 Specifications 7.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) Voltage range (1) MIN MAX UNIT VIN, PS/SYNC, EN, VSEL –0.3 20 V L1 –0.3 20 V L2, PG, VOUT, FB –0.3 12 V AUX –0.3 7 V FB2 –0.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 7.4 Thermal Information TPS63070x THERMAL METRIC (1) VQFN UNIT 13 PINS RθJA Junction-to-ambient thermal resistance 63 °C/W RθJC(top) Junction-to-case (top) thermal resistance 42 °C/W RθJB Junction-to-board thermal resistance 13 °C/W ψJT Junction-to-top characterization parameter 2.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com 7.5 Electrical Characteristics over VIN = 2V to 16V; Tj = -40°C to 125°C; typical values are at Tj = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VIN Input voltage range once started; Vout ≥ 3.0 V 2.0 16 V VIN Input voltage range for start-up; Vout < 3.0 V 3.0 16 V IOUT Output current during operation with either VIN ≥ 4.5 V or VOUT ≥ 4.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 Electrical Characteristics (continued) over VIN = 2V to 16V; Tj = -40°C to 125°C; typical values are at Tj = 25°C (unless otherwise noted) PARAMETER VOUT VOUT TEST CONDITIONS MIN MAX UNIT feedback leakage for adjustable version; VFB = 0.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com 7.6 Typical Characteristics 90 60 -40 30 85 125 80 50 RDSon [m:] RDSon [m:] 70 -40 30 80 125 55 60 50 40 45 40 35 30 30 25 20 20 0 5 10 VIN [V] 15 20 0 Vout = 5V I = 1A 10 VIN [V] 15 20 D020 Vout = 5V Figure 1. Rds(on) of High-side Buck Switch I = 1A Figure 2.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 8 Detailed Description 8.1 Overview The TPS6307x use 4 internal N-channel MOSFETs to maintain synchronous power conversion at all possible operating conditions. This enables the device to keep high efficiency over a wide input voltage and output power range.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com 8.3 Functional Block Diagram TPS630701 L1 L2 VIN VOUT VIN VOUT Bias Regulator Current Sensor VIN VAUX VOUT VAUX VAUX PGND FB _ Modulator _ + + PG PS/SYNC PGND Gate Control Oscillator + - Device Control VREF EN FB2 VSEL GND PGND Temperature Protection PGND Copyright © 2016, Texas Instruments Incorporated 8.4 Feature Description 8.4.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 Feature Description (continued) L2 L1 Vin Vout Boost Drive Buck Drive PWM PWM Buck Ramp Boost Ramp gmc Rs gmv FB Vref 0.8V Ramp Generator Copyright © 2016, Texas Instruments Incorporated Figure 5. Average Current Mode Control 8.4.2 Enable The enable pin of the TPS63070 is not just a simple digital input but compares the voltage applied to a fixed threshold of 0.8V for a rising voltage.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 8.4.4 www.ti.com Soft Start To minimize inrush current during start up, the device has a soft start. When the EN pin is set high, after a thermal shutdown or after the undervoltage lockout threshold is exceeded, a soft-start cycle is started and the input current is ramped until the output voltage reaches regulation. The device ramps up the output voltage in a controlled manner, even if a large capacitor is connected at the output.
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TPS63070 TPS630701 www.ti.com 8.4.7 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 VSEL and FB2 pins The VSEL pin allows to select between two different output voltages on the adjustable version. The voltage is set by a resistor that is connected between the FB and the FB2 pin. FB2 is connected to GND if VSEL = high. FB2 is high impedance if VSEL= low. 1.5 µH TPS63070 L1 L2 VIN = 2.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com 8.5 Device Functional Modes 8.5.1 Power Save Mode Depending on the load current, in order to provide the best efficiency over the complete load range, the device works in PWM mode at an inductor current of approximately 650 mA or higher. At lighter load, the device switches automatically in to Power Save Mode to reduce power consumption and extend battery life.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 Device Functional Modes (continued) Output Current Buck IOUT = ( 0 x IIN ) / D (5) With, η = Estimated converter efficiency (use the number from the efficiency curves or 0.90 as an assumption) f = Converter switching frequency (typical 2.4MHz) L = Selected inductor value IIN=Minimum average input current (, , and ) 8.5.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 Table 2. Bill of Materials (continued) REFERENCE DESCRIPTION VALUE MANUFACTURER CVAUX TMK105B7104MV-FR 100 nF / 25V / X7R / 0402 Taiyo Yuden R1, R2 Metal Film Resistor ; 1% depending on desired output voltage R4 Metal Film Resistor ; 1% 100 kΩ 9.2.2 Detailed Design Procedure The TPS6307x series of buck-boost converter has internal loop compensation.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com 9.2.2.2 Inductor Selection For high efficiencies, the inductor should have a low dc resistance to minimize conduction losses. Especially at high switching frequencies, the core material has a higher impact on efficiency. When using small chip inductors, the efficiency is reduced mainly due to higher inductor core losses. This needs to be considered when selecting the appropriate inductor.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 9.2.2.3 Capacitor Selection 9.2.2.3.1 Input Capacitor It is recommended to use a combination of capacitors on the input. A small size ceramic capacitor as close as possible from the VIN pin to GND to block high frequency noise and a larger one in parallel for the required capacitance on for good transient behavior of the regulator. X5R or X7R ceramic capacitor are recommended.
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TPS63070 TPS630701 www.ti.com 100% 100% 90% 90% 80% 80% 70% 70% 60% 60% Efficiency Efficiency SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 50% 40% 3V 4.2 V 5V 7V 9V 12 V 30% 20% 10% 0 100P 1m Vout = 9 V 10m 100m Output Current (A) PFM 1 50% 40% 3V 4.2 V 5V 7V 9V 12 V 30% 20% 10% 0 100P 2 T = 25 °C Vout = 9 V Figure 11. Efficiency vs Output Current 2 D006 T = 25 °C 7.14 3V 4.2 V 5V 7V 9V 12 V 7.21 Output Voltage (V) Output Voltage (V) PWM 1 7.28 3V 4.2 V 5V 7V 9V 12 V 7.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 1 4.5 0.9 4 0.8 3.5 0.7 0.6 0.5 0.4 0.3 -40qC 25qC 85qC 125qC 0.2 0.1 Max Output Current (A) Output Current (A) www.ti.com 3 2.5 2 1.5 -40qC 25qC 85qC 125qC 1 0.5 0 0 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Input Voltage (V) D014 Vout = 7 V 2 resistive load 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Input Voltage (V) D017 Vout = 7 V after start-up with PG = high Figure 17. Typical Start-up Current 1 4.5 0.9 4 0.8 3.5 0.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 Vout = 9 V www.ti.com PFM Vin = 4.2V Figure 23. Load Transient Response Vout = 7 V PFM Io = 1A PFM 22 Vin = 12V Vout = 9 V PFM Io = 1A Figure 26. Line Transient Response Io = 0.3A Figure 27. Output Voltage Ripple PFM Figure 24. Load Transient Response Figure 25. Line Transient Response Vin = 5V; Vout = 7 V Vout = 9 V Vin = 5V; Vout = 7 V PWM Io = 1A Figure 28.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 Vin = 12V; Vout = 7 V PFM Io = 0.3A Figure 29. Output Voltage Ripple Vin = 5V; Vout = 9 V PWM Io = 0.5A PFM PFM Io = 0.1A Figure 30. Output Voltage Ripple Figure 31. Output Voltage Ripple Vin = 4.5V; Vout = 7 V Vin = 5V; Vout = 9 V Vin = 12V; Vout = 9 V PFM Io = 0.1A Figure 32. Output Voltage Ripple Io = 0.5A Vin = 7V; Vout = 9 V Figure 33. Start-up Timing PFM Io = 0.5A Figure 34.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com 9.3 Typical Application for Fixed Voltage Version 1.5 µH L TPS630701 L1 VIN = 2.0 V to 16 V VOUT = 5 V C4 C1 10 µF CIN L2 VOUT VIN 10 µF COUT 3x22 µF 0805 0603 0603 2x10 µF 0805 FB VSEL R5 R4 100 kΩ FB2 10 kΩ EN PS/SYNC VAUX CVAUX PG PGND GND 100 nF Copyright © 2016, Texas Instruments Incorporated Figure 35.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 9.3.2 Detailed Design Procedure The TPS6307x series of buck-boost converter has internal loop compensation. Therefore, the external L-C filter has to be selected according to the internal compensation. It's important to consider that the effective inductance, due to inductor tolerance and current derating can vary between 20% and -30%.
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TPS63070 TPS630701 www.ti.com 1 4.5 0.9 4 0.8 3.5 0.7 0.6 0.5 0.4 0.3 -40qC 25qC 85qC 125qC 0.2 0.1 0 Max Output Current (A) Output Current (A) SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 3 2.5 2 1.5 -40qC 25qC 85qC 125qC 1 0.5 0 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Input Voltage (V) D013 Vout = 5 V resistive load 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Input Voltage (V) D016 Vout = 5 V after start-up with PG = high Figure 40. Typical Start-up Current Figure 41.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 Vin = 4.2V; Vout = 5 V PWM Io = 1A Vin = 7.2V; Vout = 5 V Figure 46. Output Voltage Ripple PFM Io = 0.3A Figure 47. Output Voltage Ripple Vin = 4.5V; Vout = 5 V PFM Io = 0.5A Figure 48.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com 10 Power Supply Recommendations The TPS63070 device family has no special requirements for its power supply. The power supply output current needs to be rated according to the supply voltage, output voltage and output current of TPS63070. Please see the layout guidelines about the placement of the external components. 10.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 11 Layout 11.1 Layout Guidelines For all switching power supplies, the layout is an important step in the design, especially at high peak currents and high switching frequencies. If the layout is not carefully done, the regulator could show stability problems as well as EMI problems. Therefore, use wide and short traces for the main current path and for the power ground connection.
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TPS63070 TPS630701 SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 www.ti.com 12 Device and Documentation Support 12.1 Device Support 12.1.1 Third-Party Products Disclaimer TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE. 12.
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TPS63070 TPS630701 www.ti.com SLVSC58A – JUNE 2016 – REVISED AUGUST 2016 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 8-Oct-2016 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Oct-2016 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS630701RNMR VQFNHR RNM 15 3000 330.0 12.4 2.8 3.3 1.2 8.0 12.0 Q1 TPS630701RNMT VQFNHR RNM 15 250 180.0 12.4 2.8 3.3 1.2 8.0 12.0 Q1 TPS63070RNMR VQFNHR RNM 15 3000 330.0 12.4 2.8 3.3 1.2 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Oct-2016 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS630701RNMR VQFN-HR RNM 15 3000 367.0 367.0 35.0 TPS630701RNMT VQFN-HR RNM 15 250 210.0 185.0 35.0 TPS63070RNMR VQFN-HR RNM 15 3000 367.0 367.0 35.0 TPS63070RNMT VQFN-HR RNM 15 250 210.0 185.0 35.
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PACKAGE OUTLINE RNM0015A VQFN - 1 mm max height SCALE 4.000 PLASTIC QUAD FLATPACK - NO LEAD 2.6 2.4 B A PIN 1 INDEX AREA 3.1 2.9 1 MAX C SEATING PLANE 0.05 0.00 0.08 C PKG 2X 0.775 2X 0.725 (0.2) TYP 2X 0.5 5 8 7 0.5 TYP 1.6 1.4 4 2X (0.25) 9 SYMM 1.5 1 11 2X 1 8X 0.5 0.3 15 13 1.25 1.05 12 2X 0.3 15X 0.2 0.1 0.05 C B C 0.5 0.3 A 4222000/A 07/2015 NOTES: 1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only.
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EXAMPLE BOARD LAYOUT RNM0015A VQFN - 1 mm max height PLASTIC QUAD FLATPACK - NO LEAD 2X (0.75) 2X (0.725) 15 2X (0.525) 14 13 4X (0.6) 12 8X (0.6) 8X (0.25) 2X (1.35) 1 11 2X (0.5) SYMM (2.8) 9 5X (0.5) 4 3X (0.25) (1.7) (R0.05) TYP 2X (0.25) 8 7 6 5 4X (0.25) (0.6) (1.15) 2X (0.775) PKG LAND PATTERN EXAMPLE SCALE:20X METAL SOLDER MASK OPENING SOLDER MASK OPENING METAL UNDER SOLDER MASK 0.05 MIN ALL AROUND 0.
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EXAMPLE STENCIL DESIGN RNM0015A VQFN - 1 mm max height PLASTIC QUAD FLATPACK - NO LEAD 2X (0.75) 2X (0.725) 15 2X (0.525) 13 14 12 4X (0.6) 8X (0.6) 14X (0.25) 1 SOLDER MASK EDGE,TYP (1.06) 3X EXPOSED METAL 11 2X EXPOSED METAL 2X (0.72) SYMM 10 (0.5) TYP 5X (0.5) (2.8) 9 4X (0.575) (0.14) 4 (R0.05) TYP 2X (0.25) 6 5 7 METAL UNDER SOLDER MASK TYP 8 2X (0.388) 4X (0.25) (1.15) 2X (1.163) PKG SOLDER PASTE EXAMPLE BASED ON 0.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.