TPS22920_16 Datasheet, PDF (1/26 Pages) Texas Instruments – On-Resistance, Integrated Load Switch

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TPS22920, TPS22920L
SLVSAY8D – JUNE 2011 – REVISED JANUARY 2016
TPS22920x 3.6-V, 4-A, 5.3-mΩ On-Resistance, Integrated Load Switch with Controlled
Turn-on
1 Features
•1 Input Voltage Range: 0.75 V to 3.6 V
• Integrated Load Switch
• Integrated Pass-FET r_DSON = 2 mΩ (Typ) at 3.6 V
• Typical 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
• CSP-8 Package 0.9 mm × 1.9 mm, 0.5 mm Pitch
• 4-A Maximum Continuous Switch Current
• Shutdown Current 5.5-µA Max
• ON-Logic Available in Both Active High/Low:
– TPS22920 is Active High
– TPS22920L is Active Low
• Low Threshold Control Input
• Controlled Slew-Rate to Avoid Inrush Current
• Quick Output Discharge Resistor
• ESD Performance Tested Per JESD 22
– 4000-V Human-Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
3 Description
The TPS22920x is a small, space-saving load switch
with controlled turn on to reduce inrush current. 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 TPS22920x has a 1250-Ω on-chip resistor for
quick output discharge when the switch is turned off
which insures that the output is not left floating.
The TPS22920x has an internally controlled rise time
in order to reduce inrush current.
The TPS22920x is available in an ultra-small, space-
saving 8-pin CSP package and is characterized for
operation over the free-air temperature range of
–40°C to 85°C.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
TPS22920x
DSBGA (8)
1.90 mm x 0.90 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
2 Applications
• Notebook / Netbook Computer
• Tablet PC
• PDAs / Smartphones
• GPS Navigation Devices
• MP3 Players
Typical Application
SMPS
C_IN
V_IN
ON _ON
OFF
TPS22920
V_OUT
GND
C_L
R_L
GND
1
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.