TPS22929D Datasheet PDF


Part Number

TPS22929D

Description

Low on Resistance Load Switch

Manufacture

etcTI

Total Page 27 Pages
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Features Datasheet pdf Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS22929D SLVSB39A – DECEM BER 2011 – REVISED JUNE 2014 TPS22929 D Ultra-Small, Low on Resistance Load S witch With Controlled Turn-on 1 Featur es •1 Integrated Single Load Switch Small SOT23-6 Package • Input Volt age Range: 1.4 V to 5.5 V • Low ON-Re sistance – rON = 115 mΩ at VIN = 5 V – rON = 115 mΩ at VIN = 3.3 V – r ON = 118 mΩ at VIN = 2.5 V – rON = 1 29 mΩ at VIN = 1.5 V • 1.8-A Continu ous Switch Current (25°C) • Low Thre shold Control Input • Controlled Slew -rate • Under-Voltage Lock Out • Qu ick Output Discharge • Reverse Curren t Protection 2 Applications • Portable Industrial Equipment • Portable Me.
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TPS22929D Datasheet
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Sample &
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Technical
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TPS22929D
SLVSB39A – DECEMBER 2011 – REVISED JUNE 2014
TPS22929D Ultra-Small, Low on Resistance Load Switch With Controlled Turn-on
1 Features
1 Integrated Single Load Switch
• Small SOT23-6 Package
• Input Voltage Range: 1.4 V to 5.5 V
• Low ON-Resistance
– rON = 115 mΩ at VIN = 5 V
– rON = 115 mΩ at VIN = 3.3 V
– rON = 118 mΩ at VIN = 2.5 V
– rON = 129 mΩ at VIN = 1.5 V
• 1.8-A Continuous Switch Current (25°C)
• Low Threshold Control Input
• Controlled Slew-rate
• Under-Voltage Lock Out
• Quick Output Discharge
• Reverse Current Protection
2 Applications
• Portable Industrial Equipment
• Portable Medical Equipment
• Portable Media Players
• Point Of Sales Terminal
• GPS Devices
• Digital Cameras
• Portable Instrumentation
• Smartphones
3 Description
The TPS22929D 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
TPS22929D is active high enable.
The TPS22929D 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 TPS22929D 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 (VOUT) is driven higher than the input
(VIN) to quickly (10 µs typ) stop the flow of current
towards the input side of the switch. Reverse current
is always active, even when the power-switch is
disabled. Additionally, under-voltage lockout (UVLO)
protection turns the switch off if the input voltage is
too low.
The TPS22929D is available in a small, space-saving
6-pin SOT23 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)
TPS22929D
SOT23 (6)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
Power
Supply
CIN
VIN
ON
OFF
ON
VOUT
TPS22929D
GND
CL
RL
GND
On-State Resistance vs Input Voltage
180
−40C
160
25C
85C
140
120
100
80
60
40
20
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
Voltage (V)
G000
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.




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