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ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - DC/DC voltage regulator Boost SC 70 6

0.01

0.1

100

2.8

2.3

1.8

1.3

0.8

OUT

- Output Current - mA

- Input Voltage - V

≥ 90%

≥ 80%

≥ 70%

OUT

= 3.3V)

Efficiency vs Output Current and Input Voltage

10µF

4.7

VIN

VOUT

10µF

GND

TPS61220

OUT

1.8 V to 6 V

0.7 V to V

OUT

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

Reference

Design

TPS61220, TPS61221, TPS61222

SLVS776A –JANUARY 2009–REVISED APRIL 2014

TPS6122x Low Input Voltage, 0.7V Boost Converter With 5.5μA Quiescent Current

1 Features 3 Description

The TPS6122x family devices provide a power-supply

• Up to 95% Efficiency at Typical Operating

solution for products powered by either a single-cell,

Conditions

two-cell, or three-cell alkaline, NiCd or NiMH, or one-

• 5.5 μA Quiescent Current

cell Li-Ion or Li-polymer battery. Possible output

• Startup Into Load at 0.7 V Input Voltage

currents depend on the input-to-output voltage ratio.

The boost converter is based on a hysteretic

• Operating Input Voltage from 0.7 V to 5.5 V

controller topology using synchronous rectification to

• Pass-Through Function during Shutdown

obtain maximum efficiency at minimal quiescent

• Minimum Switching Current 200 mA

currents. The output voltage of the adjustable version

can be programmed by an external resistor divider, or

• Protections:

is set internally to a fixed output voltage. The

– Output Overvoltage

converter can be switched off by a featured enable

– Overtemperature

pin. While being switched off, battery drain is

minimized. The device is offered in a 6-pin SC-70

– Input Undervoltage Lockout

package (DCK) measuring 2 mm x 2 mm to enable

• Adjustable Output Voltage from 1.8 V to 6 V

small circuit layout size.

• Fixed Output Voltage Versions

• Small 6-pin SC-70 Package

Device Information

(1)

DEVICE NAME PACKAGE BODY SIZE

2 Applications

TPS61220

• Battery Powered Applications

TPS61221 SC-70 (6) 2.00mm x 1.25mm

TPS61222

– 1 to 3 Cell Alkaline, NiCd or NiMH

– 1 cell Li-Ion or Li-Primary

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

the end of this document.

• Solar or Fuel Cell Powered Applications

• Consumer and Portable Medical Products

• Personal Care Products

• White or Status LEDs

• Smartphones

4 Simplified Schematic

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.

Summary of content (27 pages)

PAGE 1
Sample & Buy Product Folder Support & Community Tools & Software Technical Documents Reference Design TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 TPS6122x Low Input Voltage, 0.7V Boost Converter With 5.5μA Quiescent Current 1 Features 3 Description • The TPS6122x family devices provide a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or onecell Li-Ion or Li-polymer battery.
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TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 9 Features .................................................................. Applications ........................................................... Description ............................................................. Simplified Schematic............................................. Revision History.....................................................
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TPS61220, TPS61221, TPS61222 www.ti.com SLVS776A – JANUARY 2009 – REVISED APRIL 2014 Device Comparison TA OUTPUT VOLTAGE DC/DC PACKAGE MARKING Adjustable CKR 3.3 V CKS 5.0 V CKT –40°C to 85°C (1) (2) (3) (1) PACKAGE (2) PART NUMBER (3) TPS61220DCK 6-pin SC-70 TPS61221DCK TPS61222DCK Contact the factory to check availability of other fixed output voltage versions.
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TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 www.ti.com 7.3 Recommended Operating Conditions MIN NOM MAX UNIT VIN Supply voltage at VIN 0.7 5.5 V TJ Operating virtual junction temperature –40 125 °C 7.4 Thermal Information TPS6122x THERMAL METRIC (1) DCK UNIT 6 PINS RθJA Junction-to-ambient thermal resistance 231.2 RθJCtop Junction-to-case (top) thermal resistance 61.8 RθJB Junction-to-board thermal resistance 78.
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TPS61220, TPS61221, TPS61222 www.ti.com SLVS776A – JANUARY 2009 – REVISED APRIL 2014 Electrical Characteristics (continued) over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted) PARAMETER VUVLO TEST CONDITIONS Undervoltage lockout threshold for turn off MIN VIN decreasing TYP 0.5 Overvoltage protection threshold 6.0 MAX UNIT 0.7 7.
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TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 www.ti.com 100 300 90 80 200 70 TPS61221 VO = 3.3 V h - Efficiency - % Maximum output Current - mA 250 150 TPS61222 VO = 5 V 100 60 VI = 1.2 V VI = 1.5 V VI = 0.7 V 50 40 30 20 50 TPS61220 VO = 1.8 V 10 0 0.7 1.2 1.7 2.2 2.7 3.2 3.7 4.2 0 0.01 4.7 0.1 VI - Input Voltage - V 1 IO - Output Current - mA 10 100 VO = 1.8 V Figure 1.
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TPS61220, TPS61221, TPS61222 www.ti.com SLVS776A – JANUARY 2009 – REVISED APRIL 2014 80 100 70 80 60 II - Input Current - mA h - Efficiency - % IO = 10 mA IO = 50 mA IO = 1 mA 60 IO = 100 mA 40 TPS61222, VO = 5 V 50 TPS61221, VO = 3.3 V 40 30 TPS61220, VO = 1.8 V 20 20 10 0 0.7 1.7 2.7 VI - Input Voltage - V 0 0.7 4.7 3.7 VO = 5 V 4.7 Figure 8. No Load Input Current versus Input Voltage, Device Enabled (TPS61220, TPS61221, TPS61222) 3.5 1.9 3.4 VO - Output Voltage - V 1.
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TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 www.ti.com Icoil Icoil 50 mA/div 50 mA/div Offset: 0 V Offset: 0 A VO VO 10 mV/div 10 mA/div Offset: 3.31 V Offset: 1.8 V 1 ms/div 1 ms/div VI = 0.8 V VO = 1.8 V IO = 20 mA VI = 1.8 V Figure 13. Output Voltage Ripple (TPS61220) VO = 3.3 V IO = 50 mA Figure 14. Output Voltage Ripple (TPS61221) Offset: 0 A IL Offset: 0 A 200 mA/div IL 200 mA/div IO Offset: 0 A 50 mA/div IO Offset: 0 A 20 mA/div VO Offset: 3.
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TPS61220, TPS61221, TPS61222 www.ti.com SLVS776A – JANUARY 2009 – REVISED APRIL 2014 Offset: 0 V VEN 500 mV/div Offset: 0 V VEN 500 mV/div Offset: 0 A Icoil Offset: 0 A Icoil 100 mA/div 100 mA/div Offset: 0 V VL 1 V/div VL 2 V/div Offset: 0 V VO 2 V/div Offset: 0 V Offset: 0 V VO 1 V/div 500 ms/div 500 ms/div VI = 0.7 V VO = 1.8 V RLOAD = 150 Ω VI = 0.7 V VO = 3.3 V RLOAD = 50 Ω Figure 20. Startup After Enable (TPS61221) Figure 19.
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TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 www.ti.com 8 Parameter Measurement Information L1 L VOUT VOUT R1 VIN VIN C1 C2 FB EN R2 GND TPS6122x Table 1. List Of Components: COMPONENT REFERENCE PART NUMBER MANUFACTURER VALUE C1 GRM188R60J106ME84D Murata 10 μF, 6.3V. X5R Ceramic C2 GRM188R60J106ME84D Murata 10 μF, 6.3V. X5R Ceramic L1 EPL3015-472MLB Coilcraft 4.
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TPS61220, TPS61221, TPS61222 www.ti.com SLVS776A – JANUARY 2009 – REVISED APRIL 2014 9 Detailed Description 9.1 Overview The TPS6122x is a high performance, high efficient family of switching boost converters. To achieve high efficiency, the power stage is realized as a synchronous-boost topology. For the power switching, two activelycontrolled low-RDSon power MOSFETs are implemented. 9.
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TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 www.ti.com Feature Description (continued) 9.3.2 Device Enable And Shutdown Mode The device is enabled when EN is driven high, and shut down when EN is low. During shutdown, the converter stops switching and all internal control circuitry is turned off. During shutdown, the input voltage is connected to the output through the back-gate diode of the rectifying MOSFET.
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TPS61220, TPS61221, TPS61222 www.ti.com SLVS776A – JANUARY 2009 – REVISED APRIL 2014 10 Applications and Implementation 10.1 Application Information The TPS6122x family devices provide a power-supply solution for products powered by either a single-cell, twocell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Use the following design procedure to select component values for the TPS61220 device and the TPS61222 device. Alternatively, use the SwitcherPro™ tool.
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TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 www.ti.com Typical Applications (continued) ì VOUT ´ IOUT + 100 mA; continous current operation ï = í 0.8 ´ VIN ï200 mA; discontinuous current operation î IL,MAX (2) Equation 2 provides a suitable inductor current rating. However, remember that load transients and error conditions may cause higher inductor currents.
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TPS61220, TPS61221, TPS61222 www.ti.com SLVS776A – JANUARY 2009 – REVISED APRIL 2014 100 80 h - Efficiency - % IO = 10 mA IO = 50 mA IO = 1 mA 60 IO = 100 mA 40 20 0 0.7 1.7 2.7 VI - Input Voltage - V 4.7 3.7 Figure 25. TPS61222 Performance 10.2.2 Specific Application, Variable Output Voltage Supply L1 L VOUT VOUT R1 VIN VIN C1 C2 FB EN R2 GND TPS6122x Figure 26. Application Circuit For Adjustable Output Voltage Option 10.2.2.1 Design Requirements • Single 4.
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TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 www.ti.com For this example, if an output voltage of 4.2 V is needed, a 1.2-MΩ resistor is calculated for R1 when 160 kΩ is selected for R2. This would yield an output voltage of 4.25 V, neglecting resistor tolerances. 10.2.2.2.3 Inductor Selection See Inductor Selection for a discussion on inductor choice. 10.2.2.2.4 Capacitor Selection The procedure for selecting capacitors is the same as for the fixed output voltage circuit.
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TPS61220, TPS61221, TPS61222 www.ti.com SLVS776A – JANUARY 2009 – REVISED APRIL 2014 11 Power Supply Recommendations 11.1 Typical Power Sources The high conversion efficiency of this device encourages the use of a wide range of battery types. Photovoltaic cells and large capacitors ('supercapacitors') may also serve as power sources within the limits specified in Recommended Operating Conditions. 11.
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TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 www.ti.com 12 Layout 12.1 Layout Guidelines As 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 paths.
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TPS61220, TPS61221, TPS61222 www.ti.com SLVS776A – JANUARY 2009 – REVISED APRIL 2014 13 Device and Documentation Support 13.1 Device Support 13.1.1 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. 13.1.
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TPS61220, TPS61221, TPS61222 SLVS776A – JANUARY 2009 – REVISED APRIL 2014 www.ti.com 14 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 11-Apr-2013 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 4-Mar-2013 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 TPS61220DCKR SC70 DCK 6 3000 178.0 9.0 2.4 2.5 1.2 4.0 8.0 Q3 TPS61220DCKR SC70 DCK 6 3000 179.0 8.4 2.2 2.5 1.2 4.0 8.0 Q3 TPS61220DCKT SC70 DCK 6 250 178.0 9.0 2.4 2.5 1.2 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 4-Mar-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS61220DCKR SC70 DCK 6 3000 180.0 180.0 18.0 TPS61220DCKR SC70 DCK 6 3000 203.0 203.0 35.0 TPS61220DCKT SC70 DCK 6 250 180.0 180.0 18.0 TPS61220DCKT SC70 DCK 6 250 203.0 203.0 35.0 TPS61221DCKR SC70 DCK 6 3000 203.0 203.0 35.0 TPS61221DCKR SC70 DCK 6 3000 180.0 180.0 18.
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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.