TPS22930 Datasheet, PDF (1/19 Pages) Texas Instruments – ULTRA SMALL, LOW RESISTANCE LOAD SWITCH

TPS22930
www.ti.com
SLVSBL3 – NOVEMBER 2012
ULTRA SMALL, LOW RESISTANCE LOAD SWITCH
Check for Samples: TPS22930
FEATURES
1
• Integrated Single Channel Load Switch
• Ultra Small CSP-4 Package (0.9mm × 0.9mm,
0.5mm pitch)
• Input Voltage Range: 1.4V to 5.5V
• Ultra Low R_ON Resistance
– R_ON = 35mΩ at V_IN = 5V
– R_ON = 36mΩ at V_IN = 3.6V
– R_ON = 49mΩ at V_IN = 1.8V
• 2A Maximum Continuous Switch Current
• Low Quiescent Current (< 3µA)
• Low Control Input Threshold Enables Use of
1.2V/1.8V/2.5V/3.3V Logic
• Controlled Slew Rate
• Under Voltage Lockout
• Reverse Current Protection When Disabled
APPLICATIONS
• Smartphone / Wireless Handsets
• Portable Industrial / Medical Equipment
• Portable Media Players
• Point of Sales Terminals
• GPS Navigation Devices
• Digital Cameras
• Portable Instrumentation
DESCRIPTION
The TPS22930 is a small, low R_ON load switch with
controlled turn on. The device contains a P-channel
MOSFET that can operate over an input voltage
range of 1.4V to 5.5V. The switch is controlled by an
on/off input (ON), which is capable of interfacing
directly with low-voltage control signals. The
TPS22930 is active high enable.
The TPS22930 device provides circuit breaker
functionality by disabling the body diode during
reverse voltage (also known as reverse current)
situations. Reverse current protection is active only
when the power-switch is disabled (off). The device
disengages the body diode when the output voltage
(V_OUT) is driven higher than the input (V_IN) to stop the
flow of current towards the input side of the switch.
Additionally, under-voltage lockout (UVLO) protection
turns the switch off if the input voltage is too low.
The slew rate of the device is internally controlled in
order to avoid inrush current.
The TPS22930 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.
Power
Supply
CIN
VIN
OFF
ON
ON
VOUT
TPS22930
GND
CL
RL
GND
Figure 1. Typical Application
Device
TPS22930A
RON (typ) at
4.2V
35mΩ
Feature List
Rise Time at
4.2V (typ)
Quick Output
Discharge ⁽¹⁾
5.4µs
No
Maximum
Continuous Current
2A
Enable
Active High
(1) This feature discharges output of the switch to GND through a resistor, preventing the output from floating when the pass FET is
disabled
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 © 2012, Texas Instruments Incorporated