TPS22920L Datasheet, PDF (1/19 Pages) Texas Instruments – Ultra-Low On-Resistance, 4-A Integrated Load Switch with Controlled Turn-on

TPS22920L
www.ti.com
SLVSBT9A – AUGUST 2013 – REVISED AUGUST 2013
Ultra-Low On-Resistance, 4-A Integrated Load Switch with Controlled Turn-on
Check for Samples: TPS22920L
FEATURES
1
• Input Voltage Range: 0.75 V to 3.6 V
• Integrated Pass-FET
R_DSON = 2 mΩ (Typ) at V_IN = 3.6 V
• Ultra-low ON-Resistance
– R_ON = 5.3 mΩ at V_IN = 3.6 V
– R_ON = 5.4 mΩ at V_IN = 2.5 V
– R_ON = 5.5 mΩ at V_IN = 1.8 V
– R_ON = 5.8 mΩ at V_IN = 1.2 V
– R_ON = 6.1 mΩ at V_IN = 1.05 V
– R_ON = 7.3 mΩ at V_IN = 0.75 V
• Ultra Small 8-pin Chip Scale Package (DSBGA)
0.9 mm × 1.9 mm, 0.5 mm Pitch
• 4 A Maximum Continuous Switch Current
• Shutdown Current 5.5 µA Max
• Low Threshold (1.2 V) GPIO Control Input
• Controlled Slew-Rate to Avoid Inrush Current
• Quick Output Discharge (QOD) Transistor
• ESD Performance Tested Per JESD 22
– 4000-V Human-Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
DESCRIPTION
The TPS22920L is a small, ultra-low R_ON load switch
with controlled turn on. The device contains a N-
channel MOSFET that can operate over an input
voltage range of 0.75 V to 3.6 V and switch currents
up to 4 A. An integrated charge pump biases the
NMOS switch in order to achieve a minimum switch
ON resistance (R_ON). The switch is controlled by an
on/off input (ON), which is capable of interfacing
directly with low-voltage control signals.
The TPS22920L has a 1250 Ω on-chip load resistor
for quick output discharge when the switch is turned
off.
The TPS22920L has an internally controlled rise time
in order to reduce inrush current. The TPS22920L
features a rise time of 627 μs at 3.6 V.
The TPS22920L is available in an ultra-small, space-
saving 8-pin chip scale package and is characterized
for operation over the free-air temperature range of
–40°C to 85°C.
SMPS
C
IN
VIN
OFF
ON
ON
VOUT
TPS22920L
GND
C
L
R
L
GND
APPLICATIONS
• Thunderbolt^TM
• Solid State Drives (SSD)
• Notebooks / Ultrathins
• Tablet PC
• Smartphones
• Portable GPS Devices
• MP3 Players
TPS22920L
r_ON (typ)
at 3.6 V
5.3 mΩ
RISE TIME
(typ) at 3.6V
627 µs
Figure 1. Typical Application
FEATURE LIST
QUICK OUTPUT
DISCHARGE ⁽¹⁾
Yes
MAXIMUM OUTPUT CURRENT
4A
ENABLE
Active Low
(1) This feature discharges the output of the switch to ground through a 1250-Ω resistor, preventing the output from floating. See
Application section ‘Output Pull-Down’
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 © 2013, Texas Instruments Incorporated