Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - ELCs High side UFBGA 4

Power

Supply

OFF

TPS22908

OUT

GND

TPS22908

www.ti.com

SLVSBI7B –JULY 2012–REVISED MAY 2013

ULTRA-SMALL, LOW-INPUT VOLTAGE, LOW R

LOAD SWITCH

Check for Samples: TPS22908

FEATURES

APPLICATIONS

• Low Input Voltage: 1.0 V to 3.6 V • Battery Powered Equipment

• Ultra-Low ON-State Resistance (R

) • Portable Industrial Equipment

• Typical R

values • Portable Medical Equipment

– R

= 28 mΩ at VIN = 3.6 V • Portable Media Players

– R

= 33 mΩ at VIN = 2.5 V • Point of Sale Terminal

– R

= 42 mΩ at VIN = 1.8 V • GPS Devices

– R

= 70 mΩ at VIN = 1.2 V • Digital Cameras

• 1-A Maximum Continuous Switch Current • Portable Instrumentation

• Maximum Quiescent Current = 1 µA • Smartphones / Tablets

• Maximum Shutdown Current = 1 µA

• Low Control Input Thresholds Enable Use of

Low-Voltage Logic

• Controlled Slew Rate to Avoid Inrush Currents

• Ultra-Small Four Terminal Wafer-Chip-Scale

Package (WCSP)

Figure 1. Typical Application

– Nominal Dimensions - See Addendum for

Details

– 0.9 mm × 0.9 mm

– 0.5-mm Pitch, 0.6-mm Height

• Quick Output Discharge (QOD)

DESCRIPTION

The TPS22908 is an ultra small, low R

load switch with controlled turn-on. The device contains a P-channel

MOSFET that operates over an input voltage range of 1.0 V to 3.6 V. The switch is controlled by an on/off input

(ON), which is capable of interfacing directly with low-voltage control signals.

The TPS22908 is available in a space-saving 4-terminal WCSP with 0.5-mm pitch (YZT). The device is

characterized for operation over the free-air temperature range of –40°C to 85°C.

ORDERING INFORMATION

For package and ordering information, see the Package Option Addendum at the end of this document.

FEATURE LIST

(typical) RISE TIME (typical) QUICK OUTPUT MAXIMUM

DEVICE ENABLE

VIN = 3.6 V VIN = 3.6 V DISCHARGE

(1)

CURRENT

TPS22908 28 mΩ 105 µs Yes 1 A Active high

(1) This feature discharges the output of the switch to ground through an 80-Ω resistor, preventing the output from floating.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (20 pages)

PAGE 1
TPS22908 www.ti.com SLVSBI7B – JULY 2012 – REVISED MAY 2013 ULTRA-SMALL, LOW-INPUT VOLTAGE, LOW RON LOAD SWITCH Check for Samples: TPS22908 FEATURES APPLICATIONS • • • • • • • • • • • • 1 • • • • • • • Low Input Voltage: 1.0 V to 3.6 V Ultra-Low ON-State Resistance (RON) Typical RON values – RON = 28 mΩ at VIN = 3.6 V – RON = 33 mΩ at VIN = 2.5 V – RON = 42 mΩ at VIN = 1.8 V – RON = 70 mΩ at VIN = 1.
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TPS22908 SLVSBI7B – JULY 2012 – REVISED MAY 2013 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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TPS22908 www.ti.com SLVSBI7B – JULY 2012 – REVISED MAY 2013 ELECTRICAL CHARACTERISTICS Unless otherwise noted the specification applies over the operating ambient temp –40°C ≤ TA ≤ 85°C. Typical values are for VIN = 3.6 V, and TA = 25°C unless otherwise noted. PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT POWER SUPPLIES AND CURRENTS IIN Quiescent current IOUT = 0 mA, VIN = VON Full 0.19 1 µA IIN(OFF) OFF-state supply current VON = 0 V, VOUT = Open Full 0.
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TPS22908 SLVSBI7B – JULY 2012 – REVISED MAY 2013 www.ti.com SWITCHING CHARACTERISTIC MEASUREMENT INFORMATION VIN VOUT CIN = 1µF ON + - CL ON (A) RL OFF GND TPS22908 GND GND TEST CIRCUIT VON 50% 50% tOFF tON VOUT 50% tf tr 90% VOUT 50% 10% 90% 10% t ON/t OFF WAVEFORMS A. Rise and fall times of the control signal is 100 ns. Figure 2. Test Circuit and tON/tOFF Waveforms SWITCHING CHARACTERISTICS PARAMETER TEST CONDITION TPS22908 MIN TYP MAX UNIT VIN = 3.
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TPS22908 www.ti.com SLVSBI7B – JULY 2012 – REVISED MAY 2013 FUNCTIONAL BLOCK DIAGRAM and PIN DESCRIPTIONS VIN ON Control Logic VOUT GND Figure 3. Functional Block Diagram YZT PACKAGE B B A A 2 1 Laser Marking View 1 2 Bump View Table 1. FUNCTIONAL TABLE ON VIN to VOUT VOUT to GND L Off On H On Off PIN DESCRIPTIONS TPS22908 YZT PIN NAME B2 ON B1 GND A2 VIN A1 VOUT DESCRIPTION Switch control input, active high. Do not leave floating.
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TPS22908 SLVSBI7B – JULY 2012 – REVISED MAY 2013 www.ti.com TYPICAL DC CHARACTERISTICS VIN vs. QUIESCENT CURRENT (IIN) VIN vs. IIN(LEAK) 0.35 0.25 25C −40C 85C 25C −40C 85C 0.3 0.2 VON = GND, VOUT = 0V IIN_LEAK (µA) 0.25 IIN (µA) 0.15 0.1 0.2 0.15 0.1 0.05 0.05 VOUT = Open, VIN = VON 0 1 1.5 2 2.5 VIN (V) 3 3.5 0 4 1 1.5 2 2.5 VIN (V) 3 3.5 4 G003 G004 Figure 4. Figure 5. VIN vs. IIN(OFF) TEMPERATURE vs. RON 120 0.35 25C −40C 85C 0.3 100 VON = GND, VOUT = Open 0.
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TPS22908 www.ti.com SLVSBI7B – JULY 2012 – REVISED MAY 2013 TYPICAL DC CHARACTERISTICS (continued) RON vs. Load Current (Various VIN @ TA = 25°C) VIN vs. RON 120 140 25C −40C 85C 100 Temp = 25C VIN = 1.0V VIN = 1.2V VIN = 1.8V VIN = 2.5V VIN = 3.6V 130 120 110 100 Ron (mOhm) RON (mΩ) 80 60 40 90 80 70 60 50 20 40 30 IOUT = −200mA 0 0.5 1 1.5 2 2.5 Vin (V) 3 3.5 20 4 0 0.1 0.2 0.3 0.4 0.5 0.6 Load Current (A) 0.7 0.8 0.9 G001 1 G001 Figure 8. Figure 9. IOUT vs.
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TPS22908 SLVSBI7B – JULY 2012 – REVISED MAY 2013 www.ti.com TYPICAL DC CHARACTERISTICS (continued) VON threshold vs. VOUT (ON pin voltage increasing) 4 4 3 3 2 2 VOUT (V) VOUT (V) VON threshold vs. VOUT (ON pin voltage decreasing) 1 1 0 0 25C, Falling Edge −1 0 0.6 1.2 Vin = 1V Vin = 1.2V Vin = 1.8V 1.8 VON (V) 2.4 Vin = 2.5V Vin = 3.3V Vin = 3.6V 3 25C, Rising Edge 3.6 −1 0 0.6 1.2 Vin = 1V Vin = 1.2V Vin = 1.8V 1.8 VON (V) G009 Figure 12. 8 2.4 Vin = 2.5V Vin = 3.
PAGE 9
TPS22908 www.ti.com SLVSBI7B – JULY 2012 – REVISED MAY 2013 TYPICAL SWITCHING CHARACTERISTICS RISE TIME vs. TEMPERATURE (VIN = 3.6V) RISE TIME vs. TEMPERATURE (VIN = 1.0V) 120 600 115 550 110 tR (µs) tR (µs) 500 105 450 100 400 95 VIN = 3.6V, CL = 0.1uF, RL = 10Ohm 90 −40 −15 10 35 Temperature (°C) VIN = 1V, CL = 0.1uF, RL = 10Ohm 60 350 −40 85 −15 10 35 Temperature (°C) 60 G013 G018 Figure 14. Figure 15. FALL TIME vs. TEMPERATURE (VIN = 3.6V) FALL TIME vs. TEMPERATURE (VIN = 1.
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TPS22908 SLVSBI7B – JULY 2012 – REVISED MAY 2013 www.ti.com TYPICAL SWITCHING CHARACTERISTICS (continued) TURN-ON TIME vs. TEMPERATURE (VIN = 3.6V) TURN-ON TIME vs. TEMPERATURE (VIN = 1.0V) 130 600 120 550 tON (µs) 650 tON (µs) 140 110 500 100 450 VIN = 3.6V, CL = 0.1uF, RL = 10Ohm 90 −40 −15 10 35 Temperature (°C) VIN = 1V, CL = 0.1uF, RL = 10Ohm 60 400 −40 85 −15 10 35 Temperature (°C) 60 G001 G006 Figure 18. Figure 19. TURN-OFF TIME vs. TEMPERATURE (VIN = 3.
PAGE 11
TPS22908 www.ti.com SLVSBI7B – JULY 2012 – REVISED MAY 2013 TYPICAL SWITCHING CHARACTERISTICS (continued) RISE TIME vs. VIN (CL = 0.1µF) RISE TIME vs. VIN (CL = 1µF) 800 800 CL = 0.1uF, RL = 10Ohm, VON=1.8V 25C −40C 85C 600 600 500 500 400 400 300 300 200 200 100 100 0 1 1.5 2 2.5 Vin (V) 3 25C −40C 85C 700 tR (µs) tR (µs) 700 CL = 1uF, RL = 10Ohm, VON=1.8V 0 3.5 1 1.5 2 2.5 Vin (V) 3 G025 Figure 22. 3.5 G026 Figure 23.
PAGE 12
TPS22908 SLVSBI7B – JULY 2012 – REVISED MAY 2013 www.ti.com TYPICAL SWITCHING SCOPE CAPTURES AT TA = 25°C 12 TURN-ON RESPONSE TIME (VIN = 3.6V, CIN = 10µF, CL = 1µF, RL = 10Ω) TURN-ON RESPONSE TIME (VIN = 1.0V, CIN = 10µF, CL = 1µF, RL = 10Ω) Figure 24. Figure 25. TURN-ON RESPONSE TIME (VIN = 3.6V, CIN = 1µF, CL = 0.1µF, RL = 10Ω) TURN-ON RESPONSE TIME (VIN = 1.0V, CIN = 1µF, CL = 0.1µF, RL = 10Ω) Figure 26. Figure 27. TURN-OFF RESPONSE TIME (VIN = 3.
PAGE 13
TPS22908 www.ti.com SLVSBI7B – JULY 2012 – REVISED MAY 2013 TYPICAL SWITCHING SCOPE CAPTURES AT TA = 25°C (continued) TURN-OFF RESPONSE TIME (VIN = 3.6V, CIN = 1µF, CL = 0.1µF, RL = 10Ω) TURN-OFF RESPONSE TIME (VIN = 1.0V, CIN = 1µF, CL = 0.1µF, RL = 10Ω) Figure 30. Figure 31.
PAGE 14
TPS22908 SLVSBI7B – JULY 2012 – REVISED MAY 2013 www.ti.com APPLICATION INFORMATION ON/OFF CONTROL The ON pin controls the state of the switch. Asserting ON high enables the switch. ON is active high and has a low threshold making it capable of interfacing with low-voltage signals. The ON pin is compatible with standard GPIO logic threshold. It can be used with any microcontroller with 1.2-V or higher GPIOs.
PAGE 15
TPS22908 www.ti.com SLVSBI7B – JULY 2012 – REVISED MAY 2013 REVISION HISTORY Changes from Revision A (August 2012) to Revision B Page • Updated FEATURES. ........................................................................................................................................................... 1 • Added Layout graphic. ........................................................................................................................................................
PAGE 16
PACKAGE OPTION ADDENDUM www.ti.
PAGE 17
PACKAGE MATERIALS INFORMATION www.ti.com 28-Apr-2014 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) TPS22908YZTR DSBGA YZT 4 3000 178.0 9.2 TPS22908YZTR DSBGA YZT 4 3000 180.0 TPS22908YZTT DSBGA YZT 4 250 180.0 1.0 1.0 0.73 4.0 8.0 Q1 8.4 0.99 0.99 0.69 4.0 8.0 Q1 8.4 0.99 0.99 0.69 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 28-Apr-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS22908YZTR DSBGA YZT 4 3000 220.0 220.0 35.0 TPS22908YZTR DSBGA YZT 4 3000 182.0 182.0 17.0 TPS22908YZTT DSBGA YZT 4 250 182.0 182.0 17.
PAGE 19
D: Max = 0.918 mm, Min =0.858 mm E: Max = 0.918 mm, Min =0.
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