TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on Check for Samples: TPS22913 FEATURES DESCRIPTION • • The TPS22913 is a small, low rON load switch with controlled turn on. The device contains a P-channel MOSFET that can operate over an input voltage range of 1.4 V to 5.5 V. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22913 is active high enable. 1 • • • • • • • • Integrated Single Load Switch Ultra Small CSP-4 Package 0.9mm × 0.9mm, 0.5mm Pitch Input Voltage Range: 1.4-V to 5.5-V Low ON-Resistance – rON = 60-mΩ at VIN = 5-V – rON = 61-mΩ at VIN = 3.3-V – rON = 74-mΩ at VIN = 1.8-V – rON = 84-mΩ at VIN = 1.5-V 2-A Maximum Continuous Switch Current Low Threshold Control Input Controlled Slew-rate Options Under-Voltage Lock Out Quick Output Discharge Transistor Reverse Current Protection APPLICATIONS • • • • • • • • Portable Industrial Equipment Portable Medical Equipment Portable Media Players Point Of Sales Terminal GPS Devices Digital Cameras Portable Instrumentation Smartphones The TPS22913 contains a 150-Ω on-chip load resistor for quick output discharge when the switch is turned off. The rise time of the device is internally controlled in order to avoid inrush current. The TPS22913 family has various slew rate options (see Table 1). The TPS22913 device provides circuit breaker functionality by latching off the power-switch during reverse voltage situations. An internal reverse voltage comparator disables the power-switch when the output voltage is driven higher than the input (VIN) to quickly (10µs typ) stop the flow of current towards the input side of the switch. The reverse current protection is active when the power switch is enabled (ON). Additionally, during under-voltage lockout (UVLO), or when the switch is disabled, no reverse current can flow as the switch body diode is not engaged. The TPS22913 is available in an ultra-small, space-saving 4-pin CSP package and is characterized for operation over the free-air temperature range of –40°C to 85°C. TYPICAL APPLICATION VOUT VIN Power Supply CIN ON CL ON OFF TPS22913 RL GND GND 1 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. Copyright © 2011, Texas Instruments Incorporated TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Table 1. Feature List DEVICE rON (typ) at 3.3 V SLEW RATE (typ) QUICK OUTPUT DISCHARGE (1) MAXIMUM OUTPUT CURRENT ENABLE TPS22913A (2) 63 mΩ 0.1 µs/V Yes 2-A Active High TPS22913B 63 mΩ 20 µs/V Yes 2-A Active High TPS22913C 63 mΩ 200 µs/V Yes 2-A Active High 63 mΩ 900 µs/V Yes 2-A Active High TPS22913D (1) (2) (2) This feature discharges the output of the switch to ground through an 150-Ω resistor, preventing the output from floating. Contact local sales/distributor or factory for availability. ORDERING INFORMATION TA (1) (2) PACKAGE (1) ORDERABLE PART NUMBER TOP-SIDE MARKING/ STATUS (2) TPS22913AYZVR Contact factory for availability _ _ _ _ 64 –40°C to 85°C YZV (0.5mm pitch) Tape and Reel –40°C to 85°C YZV (0.5mm pitch) Tape and Reel TPS22913BYZVR –40°C to 85°C YZV (0.5mm pitch) Tape and Reel TPS22913CYZVR _ _ _ _ 76 –40°C to 85°C YZV (0.5mm pitch) Tape and Reel TPS22913DYZVR Contact factory for availability Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Contact factory for details and availability for PREVIEW devices, minimum order quantities may apply. DEVICE INFORMATION YZV PACKAGE TERMINALS ASSIGNMENTS B ON GND A VIN VOUT 2 1 PIN FUNCTIONS TPS22913 YZV 2 PIN NAME B1 GND B2 ON A1 VOUT A2 VIN DESCRIPTION Ground Switch control input, active high. Do not leave floating Switch output Switch input, bypass this input with a ceramic capacitor to ground Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com BLOCK DIAGRAM VIN Reverse Current Protection UVLO Control Logic ON VOUT GND Table 2. FUNCTION TABLE (1) ON VIN to VOUT VOUT to GND (1) L OFF ON H ON OFF See Application section ‘Output Pull-Down’ ABSOLUTE MAXIMUM RATINGS VALUE UNIT VIN Input voltage range –0.3 to 6 V VOUT Output voltage range VIN + 0.3 V VON Input voltage range –0.3 to 6 V IMAX Maximum continuous switch current 2 A IPLS Maximum pulsed switch current, pulse <300 µS, 2% duty cycle TA Operating free-air temperature range TJ Maximum junction temperature TSTG Storage temperature range TLEAD Maximum lead temperature (10-s soldering time) ESD Electrostatic discharge protection 2.5 A –40 to 85 °C 125 °C –65 to 150 °C 300 °C Human-Body Model (HBM) (VIN, VOUT, GND pins) 2000 Charged-Device Model (CDM) (VIN, VOUT, ON, GND pins) 1000 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 V 3 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com THERMAL INFORMATION TPS22913 THERMAL METRIC (1) CSP UNITS (4) PINS θJA Junction-to-ambient thermal resistance θJCtop Junction-to-case (top) thermal resistance 1.9 θJB Junction-to-board thermal resistance 36.8 ψJT Junction-to-top characterization parameter 11.3 ψJB Junction-to-board characterization parameter 36.8 θJCbot Junction-to-case (bottom) thermal resistance N/A (1) 189.1 °C/W For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. RECOMMENDED OPERATING CONDITIONS VIN Input voltage range VON ON voltage range VOUT Output voltage range VIH High-level input voltage, ON VIL CIN (1) 4 Low-level input voltage, ON MIN MAX 1.4 5.5 V 5.5 V 0 UNIT VIN VIN = 3.61 V to 5.5 V 1.1 5.5 V VIN = 1.4 V to 3.6 V 1.1 5.5 V VIN = 3.61 V to 5.5 V 0.6 V VIN = 1.4 V to 3. 6V 0.4 V Input Capacitor 1 (1) µF Refer to the application section. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS VIN = 1.4 V to 5.5 V, TA = –40ºC to 85ºC (unless otherwise noted) PARAMETER IIN IIN(off) IIN(Leakage) Quiescent current Off supply current Leakage current TEST CONDITIONS TA MIN 2 10 IOUT = 0, VIN = VON = 4.2 V 2 7.0 IOUT = 0, VIN = VON = 3.6 V 2 7.0 IOUT = 0, VIN = VON = 2.5 V 0.9 5 IOUT = 0, VIN = VON = 1.5 V 0.7 5 VON = GND, VOUT = Open, VIN = 5.25 V 1.2 10 VON = GND, VOUT = Open, VIN = 4.2 V 0.2 7.0 VON = GND, VOUT = Open, VIN = 3.6 V Full 0.1 7.0 VON = GND, VOUT = Open, VIN = 2.5 V 0.1 5 VON = GND, VOUT = Open, VIN = 1.5 V 0.1 5 VON = GND, VOUT = 0, VIN = 5.25 V 1.2 10 VON = GND, VOUT = 0, VIN = 4.2 V 0.2 7.0 0.1 7.0 0.1 5 VON = GND, VOUT = 0, VIN = 3.6 V Full Full VON = GND, VOUT = 0, VIN = 1.5 V VIN = 5.25 V, IOUT = –200 mA VIN = 5.0 V, IOUT = –200 mA VIN = 4.2 V, IOUT = –200 mA On-resistance VIN = 3.3 V, IOUT = –200 mA VIN = 2.5 V, IOUT = –200 mA VIN = 1.8 V, IOUT = –200 mA VIN = 1.5 V, IOUT = –200 mA 25°C Reverse Current Response Delay VIN = 5V 63.4 Full 80 80 90 74.2 Full 100 130 25°C 83.9 Full 120 150 153 200 1.2 Product Folder Link(s) :TPS22913 Ω V 0.50 Full 1 µA 44 mV 10 µs Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated mΩ 120 25°C VIN decreasing, VON 3.6 V, RL = 10 Ω µA 80 110 25°C Full µA 110 60.7 Full VIN increasing, VON = 3.6 V, IOUT = –100 mA tDELAY 60 Full Under voltage lockout µA 110 25°C UVLO VRVP 60 25°C 25°C VON = 1.4 V to 5.25 V or GND 80 Full VIN = 3.3 V, VON = 0, IOUT = 30 mA Reverse Current Voltage Threshold 5 60 UNIT 110 25°C Output pull down resistance ON input leakage current 0.1 Full RPD ION MAX IOUT = 0, VIN = VON = 5.25 V VON = GND, VOUT = 0, VIN = 2.5 V rON TYP 5 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com SWITCHING CHARACTERISTICS PARAMETER TEST CONDITION TPS22913 B TPS22913 C TYP TYP 770 UNIT VIN = 5 V, TA = 25ºC (unless otherwise noted) tON Turn-ON time RL = 10 Ω, CL = 0.1 µF 76 tOFF Turn-OFF time RL = 10 Ω, CL = 0.1 µF 6.6 6.6 tR VOUT rise time RL = 10 Ω, CL = 0.1 µF 82 838 tF VOUT fall time RL = 10 Ω, CL = 0.1 µF 3 3 1048 µs VIN = 3.3 V, TA = 25ºC (unless otherwise noted) tON Turn-ON time RL = 10 Ω, CL = 0.1 µF 102 tOFF Turn-OFF time RL = 10 Ω, CL = 0.1 µF 8.5 8.6 tR VOUT rise time RL = 10 Ω, CL = 0.1 µF 97 980 tF VOUT fall time RL = 10 Ω, CL = 0.1 µF 3 3 2344 µs VIN = 1.5 V, TA = 25ºC (unless otherwise noted) tON Turn-ON time RL = 10 Ω, CL = 0.1 µF 234 tOFF Turn-OFF time RL = 10 Ω, CL = 0.1 µF 17 18 tR VOUT rise time RL = 10 Ω, CL = 0.1 µF 244 1823 tF VOUT fall time RL = 10 Ω, CL = 0.1 µF 6.5 6.5 µs PARAMETRIC MEASUREMENT INFORMATION VOUT VIN CIN = 1 mF ON + - CL ON (A) RL OFF TPS22913 GND GND GND TEST CIRCUIT VON 50% 50% tf tr tOFF tON VOUT 50% 50% 90% 90% VOUT 10% 10% tONH/tOFF WAVEFORMS (A) Rise and fall times of the control signal is 100 ns. A. Rise and fall times of the control signal is 100 ns. Figure 1. Test Circuit and tON/tOFF Waveforms 6 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS ON-STATE RESISTANCE vs INPUT VOLTAGE ON INPUT THRESHOLD 120 6 −40C 25C 85C 110 5 90 4.5 80 4 70 3.5 VOUT (V) Ron (mΩ) 100 60 50 3 2.5 40 2 30 1.5 20 1 10 0.5 0 0 0.5 1 1.5 2 2.5 3 3.5 Voltage (V) 4 4.5 5 5.5 VIN = 5.0V VIN = 4.2V VIN = 3.3V VIN = 2.5V VIN = 1.8V VIN = 1.5V 5.5 0 6 0 0.2 0.4 0.6 VON (V) 0.8 1 1.2 G000 G000 Figure 2. Figure 3. INPUT CURRENT, QUIESCENT vs INPUT VOLTAGE INPUT CURRENT, LEAK vs INPUT VOLTAGE 3500 4 −40C 25C 85C 4 −40C 25C 85C 3000 3 2500 IIN_Leak (nA) IIN_Q (µA) 2 2 2 2000 1500 1000 1 500 0 0 0 1 2 3 Voltage (V) 4 5 6 0 0 0.5 1 1.5 2 2.5 3 3.5 Voltage (V) 4 4.5 5 5.5 G000 Figure 4. 6 G000 Figure 5. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 7 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) ON-STATE RESISTANCE vs TEMPERATURE INPUT CURRENT, OFF vs INPUT VOLTAGE 120 3500 −40C 25C 85C 3000 2500 IIN_Off (nA) Ron (mΩ) VIN = 1.4V VIN = 1.5V VIN = 1.8V VIN = 2.5V VIN = 3.3V VIN = 4.2V VIN= 5.0V VIN = 5.5V 80 2000 1500 1000 500 40 −40 −15 10 35 Temperature (°C) 60 85 0 0 0.5 1 1.5 2 2.5 3 3.5 Voltage (V) 4 4.5 5 G000 5.5 6 G000 Figure 6. Figure 7. Maximum Power Dissipation (W) 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 −40 −30 −20 −10 0 10 20 30 40 50 Ambient Temperature (°C) 60 70 80 G001 Figure 8. Allowable Power Dissipation Figure 9. ULVO Response IOUT = -100mA Figure 10. Reverse Current Protection VOUT = 3.3V, VIN = 3.3V Decreasing to 0V 8 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) TYPICAL AC CHARACTERISTICS FOR TPS22913B RISE TIME vs TEMPERATURE FALL TIME vs TEMPERATURE 180 10 160 9 VIN =5.0V, CL = 0.1 µF, RL = 10 Ohms 8 140 7 120 tFall (µs) tRise (µs) 6 100 80 5 4 60 3 40 2 20 1 VIN =5V, CL = 0.1 µF, RL = 10 Ohms 0 −40 −15 10 35 Temperature (°C) 60 85 0 −40 −15 10 35 Temperature (°C) 60 G000 85 G000 Figure 11. Figure 12. RISE TIME vs TEMPERATURE FALL TIME vs TEMPERATURE 500 400 tRise (µs) 300 200 100 VIN = 1.5V, CL = 0.1 µF, RL = 10 Ohms 0 −40 −15 10 35 Temperature (°C) 60 85 G000 Figure 13. Figure 14. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 9 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) TURN-ON TIME vs TEMPERATURE TURN-OFF TIME vs TEMPERATURE 150 20 VIN = 5.0V, CL = 0.1 µF, RL = 10 Ohms 90 12 tOff (µs) 16 tOn (µs) 120 60 8 30 4 VIN = 5.0V, CL = 0.1 µF, RL = 10 Ohms 0 −40 −15 10 35 Temperature (°C) 60 0 −40 85 −15 10 35 Temperature (°C) 60 G000 85 G000 Figure 15. Figure 16. TURN-ON TIME vs TEMPERATURE TURN-OFF TIME vs TEMPERATURE 40 500 VIN = 1.5V, CL = 0.1 µF, RL = 10 Ohms 400 30 tOff (µs) tOn (µs) 300 20 200 10 100 VIN = 1.5V, CL = 0.1 µF, RL = 10 Ohms 0 −40 −15 10 35 Temperature (°C) 60 85 0 −40 −15 10 35 Temperature (°C) G000 Figure 17. 10 60 85 G000 Figure 18. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) RISE TIME vs INPUT VOLTAGE 300 250 tRise (µs) 200 150 100 50 −40C 25C 85C CL = 0.1 µF, RL = 10 Ohms, VON = 1.8V 0 0 0.5 1 1.5 2 2.5 3 3.5 VIN (V) 4 4.5 5 5.5 6 G000 Figure 19. TURN-ON RESPONSE VIN = 5V, TA = 25°C, CIN = 10µF, CL = 1µF, RL = 10Ω TURN-OFF RESPONSE VIN = 5V, TA = 25°C, CIN = 10µF, CL = 1µF, RL = 10Ω Figure 20. Figure 21. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 11 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) VIN 12 TURN-ON RESPONSE TIME = 5V, TA = 25°C, CIN =1µF, CL = 0.1µF, RL = 10Ω TURN-OFF RESPONSE TIME VIN = 5V, TA = 25°C, CIN = 1µF, CL = 0.1µF, RL = 10Ω Figure 22. Figure 23. TURN-Of RESPONSE TIME VIN = 1.5V, TA = 25°C, CIN = 10µF, CL = 1µF, RL = 10Ω TURN-Of RESPONSE TIME VIN = 1.5V, TA = 25°C, CIN = 10µF, CL = 1µF, RL = 10Ω Figure 24. Figure 25. TURN-Of RESPONSE TIME VIN = 1.5V, TA = 25°C, CIN = 1µF, CL = 0.1µF, RL = 10Ω TURN-Of RESPONSE TIME VIN = 1.5V, TA = 25°C, CIN = 1µF, CL = 0.1µF, RL = 10Ω Figure 26. Figure 27. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) TYPICAL AC CHARACTERISTICS FOR TPS22913C RISE TIME vs TEMPERATURE FALL TIME vs TEMPERATURE 1200 4 VIN =5.0V, CL = 0.1 µF, RL = 10 Ohms 1000 3 tFall (µs) tRise (µs) 800 600 2 400 1 200 VIN =5V, CL = 0.1 µF, RL = 10 Ohms 0 −40 −15 10 35 Temperature (°C) 60 0 −40 85 −15 10 35 Temperature (°C) 60 G000 85 G000 Figure 28. Figure 29. RISE TIME vs TEMPERATURE FALL TIME vs TEMPERATURE 3000 10 VIN =1.5V, CL = 0.1 µF, RL = 10 Ohms 9 2500 8 7 2000 tFall (µs) tRise (µs) 6 1500 5 4 1000 3 2 500 1 VIN = 1.5V, CL = 0.1 µF, RL = 10 Ohms 0 −40 −15 10 35 Temperature (°C) 60 85 0 −40 −15 10 35 Temperature (°C) 60 G000 Figure 30. 85 G000 Figure 31. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 13 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) TURN-ON TIME vs TEMPERATURE TURN-OFF TIME vs TEMPERATURE 1200 10 VIN = 5.0V, CL = 0.1 µF, RL = 10 Ohms 1000 8 800 tOff (µs) tOn (µs) 6 600 4 400 2 200 VIN = 5.0V, CL = 0.1 µF, RL = 10 Ohms 0 −40 −15 10 35 Temperature (°C) 60 0 −40 85 −15 10 35 Temperature (°C) 60 G000 85 G000 Figure 32. Figure 33. TURN-ON TIME vs TEMPERATURE TURN-OFF TIME vs TEMPERATURE 3500 25 VIN = 1.5V, CL = 0.1 µF, RL = 10 Ohms 3000 20 15 2000 tOff (µs) tOn (µs) 2500 1500 10 1000 5 500 VIN = 1.5V, CL = 0.1 µF, RL = 10 Ohms 0 −40 −15 10 35 Temperature (°C) 60 85 0 −40 −15 10 35 Temperature (°C) G000 Figure 34. 14 60 85 G000 Figure 35. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) RISE TIME vs INPUT VOLTAGE 3000 2500 tRise (µs) 2000 1500 1000 500 −40C 25C 85C CL = 1 µF, RL = 10 Ohms, VON = 1.8V 0 0 0.5 1 1.5 2 2.5 3 3.5 VIN (V) 4 4.5 5 5.5 6 G000 Figure 36. TURN-ON RESPONSE VIN = 5V, TA = 25°C, CIN = 10µF, CL = 1µF, RL = 10Ω TURN-OFF RESPONSE VIN = 5V, TA = 25°C, CIN = 10µF, CL = 1µF, RL = 10Ω Figure 37. Figure 38. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 15 TPS22913 SLVSB20 – SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) VIN 16 TURN-ON RESPONSE TIME = 5V, TA = 25°C, CIN =1µF, CL = 0.1µF, RL = 10Ω TURN-OFF RESPONSE TIME VIN = 5V, TA = 25°C, CIN = 1µF, CL = 0.1µF, RL = 10Ω Figure 39. Figure 40. TURN-Of RESPONSE TIME VIN = 1.5V, TA = 25°C, CIN = 10µF, CL = 1µF, RL = 10Ω TURN-Of RESPONSE TIME VIN = 1.5V, TA = 25°C, CIN = 10µF, CL = 1µF, RL = 10Ω Figure 41. Figure 42. TURN-Of RESPONSE TIME VIN = 1.5V, TA = 25°C, CIN = 1µF, CL = 0.1µF, RL = 10Ω TURN-Of RESPONSE TIME VIN = 1.5V, TA = 25°C, CIN = 1µF, CL = 0.1µF, RL = 10Ω Figure 43. Figure 44. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 TPS22913 SLVSB20 – SEPTEMBER 2011 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 1.8-V, 2.5-V or 3.3-V GPIOs. Input Capacitor To limit the voltage drop on the input supply caused by transient inrush currents when the switch turns on into a discharged load capacitor or short-circuit, a capacitor needs to be placed between VIN and GND. A 1-μF ceramic capacitor, CIN, placed close to the pins is usually sufficient. Higher values of CIN can be used to further reduce the voltage drop. Output Capacitor A CIN to CL ratio of 10 to 1 is recommended for minimizing VIN dip caused by inrush currents during startup. Output Pull-Down The output pulldown is active when the user is turning off the main pass FET. The pulldown discharges the output rail to approximately 10% of the rail, and then the output pulldown is automatically disconnected to optimize the shutdown current. Under-Voltage Lockout The under-voltage lockout turns-off the switch if the input voltage drops below the under-voltage lockout threshold. With the ON pin active the input voltage rising above the under-voltage lockout threshold will cause a controlled turn-on of the switch which limits current over-shoots. During under-voltage lockout (UVLO), no reverse current can flow as the body diode is not engaged. Reverse Current Protection In a scenario where VOUT is greater than VIN, there could be reverse current through the body diode of the PMOS FET. The TPS22913 monitors the current through the FET and shuts off the FET when a reverse current is detected. The FET, and the output, resumes normal operation when the reverse current scenario is no longer present. When the reverse current protection (RCP) is active, no reverse current can flow as the body diode is not engaged. During under-voltage lockout (UVLO), or when the switch is disabled, no reverse current can flow as the body diode is not engaged. Use the following formula to calculate the amount of reverse current for a particular application: IRC = 0.044V RON( VIN) Where, IRC is the amount of reverse current, RON(VIN) is the on-resistance at the VIN of the reverse current condition. Board Layout For best performance, all traces should be as short as possible. To be most effective, the input and output capacitors should be placed close to the device to minimize the effects that parasitic trace inductances may have on normal operation. Using wide traces for VIN, VOUT, and GND helps minimize the parasitic electrical effects along with minimizing the case to ambient thermal impedance. Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s) :TPS22913 17 PACKAGE OPTION ADDENDUM www.ti.com 3-Oct-2011 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) TPS22913BYZVR ACTIVE DSBGA YZV 4 3000 Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIM TPS22913BYZVT ACTIVE DSBGA YZV 4 250 Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIM TPS22913CYZVR ACTIVE DSBGA YZV 4 3000 Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIM TPS22913CYZVT PREVIEW DSBGA YZV 4 250 Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIM (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. 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. 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Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 28-Sep-2011 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) TPS22913BYZVR DSBGA YZV 4 3000 178.0 9.2 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 1.0 1.0 0.63 4.0 8.0 Q1 TPS22913BYZVT DSBGA YZV 4 250 178.0 9.2 1.0 1.0 0.63 4.0 8.0 Q1 TPS22913CYZVR DSBGA YZV 4 3000 178.0 9.2 1.0 1.0 0.63 4.0 8.0 Q1 TPS22913CYZVT DSBGA YZV 4 250 178.0 9.2 1.0 1.0 0.63 4.0 8.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 28-Sep-2011 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS22913BYZVR DSBGA YZV 4 3000 220.0 220.0 35.0 TPS22913BYZVT DSBGA YZV 4 250 220.0 220.0 35.0 TPS22913CYZVR DSBGA YZV 4 3000 220.0 220.0 35.0 TPS22913CYZVT DSBGA YZV 4 250 220.0 220.0 35.0 Pack Materials-Page 2 D: Max = 0.918 mm, Min =0.858 mm E: Max = 0.918 mm, Min =0.858 mm 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 JESD46C and to discontinue any product or service per JESD48B. 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