Switch. TPS22901 Datasheet

TPS22901 Datasheet PDF


Part

TPS22901

Description

ON-Resistance Load Switch

Manufacture

etcTI

Page 30 Pages
Datasheet
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TPS22901 Datasheet
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TPS22901, TPS22902, TPS22902B
SLVS803D – NOVEMBER 2008 – REVISED JANUARY 2015
TPS2290x 3.6-V, 500-mA, 78-mΩ ON-Resistance Load Switch With Controlled Turnon
1 Features
1 Integrated P-Channel Load Switch
• Low Input Voltage: 1 V to 3.6 V
• ON-Resistance (Typical Values)
– rON = 78 mΩ at VIN = 3.6 V
– rON = 93 mΩ at VIN = 2.5 V
– rON = 109 mΩ at VIN = 1.8 V
– rON = 146 mΩ at VIN = 1.2 V
• 500 mA Maximum Continuous Switch Current
• Quiescent Current: 82 nA at 1.8 V
• Shutdown Current: 44 nA at 1.8 V
• Low Control Input Thresholds Enable Use of
1.2-V, 1.8-V, 2.5-V, and 3.3-V Logic
• Controlled Slew Rate to Avoid Inrush Currents
– tr = 40 μs at VIN = 1.8 V (TPS22901/2)
– tr = 220 μs at VIN = 1.8 V (TPS22902B)
• Quick Output Discharge (TPS22902/2B)
• ESD Performance Tested Per JESD 22
– 2000-V Human Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
• Four-Pin Wafer-Chip-Scale DSBGA Package
– 0.8-mm × 0.8-mm, 0.4-mm Pitch,
0.5-mm Height (YFP)
2 Applications
• Personal Digital Assistants (PDAs)
• Cellular Phones
• GPS Devices
• MP3 Players
• Digital Cameras
• Peripheral Ports
• Portable Instrumentation
• RF Modules
3 Description
The TPS22901, TPS22902, and TPS22902B are
small, low ON-resistance (rON) load switches with a
controlled turnon. These devices contain a P-channel
MOSFET that operates over an input voltage range of
1.0 V to 3.6 V. The switch is controlled by an on/off
input (ON), which can interface directly with low-
voltage control signals. In the TPS22902 and
TPS22902B, an 88-on-chip load resistor is added
for output quick discharge when the switch is turned
off.
The TPS22901, TPS22902, and TPS22902B are
available in a space-saving 4-pin DSBGA (YFP) with
0.4-mm pitch. These devices are characterized for
operation over the free-air temperature range of
–40°C to 85°C.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
TPS22901
TPS22902
DSBGA (4)
0.80 mm × 0.80 mm
TPS22902B
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Typical Application Schematic
VBATT
SMPS
(see Note A)
CIN = 1 µF CL
VIN
ON
OFF
A. Switched-mode power supply
GND
TPS22901/02/02B
VOUT
GND
LOAD
CL RL
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.

TPS22901 Datasheet
TPS22901, TPS22902, TPS22902B
SLVS803D – NOVEMBER 2008 – REVISED JANUARY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Typical Application Schematic............................. 1
5 Revision History..................................................... 2
6 Device Comparison Table..................................... 3
7 Pin Configuration and Functions ......................... 3
8 Specifications......................................................... 4
8.1 Absolute Maximum Ratings ..................................... 4
8.2 ESD Ratings.............................................................. 4
8.3 Recommended Operating Conditions....................... 4
8.4 Thermal Information .................................................. 4
8.5 Electrical Characteristics........................................... 5
8.6 Switching Characteristics (VIN = 1.1 V)..................... 6
8.7 Switching Characteristics (VIN = 1.2 V)..................... 6
8.8 Switching Characteristics (VIN = 1.8 V)..................... 7
8.9 Switching Characteristics (VIN = 2.5 V)..................... 7
8.10 Switching Characteristics (VIN = 3.0 V)................... 8
8.11 Switching Characteristics (VIN = 3.6 V)................... 8
8.12 Typical DC Characteristics...................................... 9
9 Parameter Measurement Information ................ 19
10 Detailed Description ........................................... 20
10.1 Overview ............................................................... 20
10.2 Functional Block Diagram ..................................... 20
10.3 Feature Description............................................... 20
10.4 Device Functional Modes...................................... 20
11 Application and Implementation........................ 21
11.1 Application Information.......................................... 21
11.2 Typical Application ................................................ 21
12 Power Supply Recommendations ..................... 24
13 Layout................................................................... 24
13.1 Layout Guidelines ................................................. 24
13.2 Layout Example .................................................... 24
14 Device and Documentation Support ................. 25
14.1 Related Links ........................................................ 25
14.2 Trademarks ........................................................... 25
14.3 Electrostatic Discharge Caution ............................ 25
14.4 Glossary ................................................................ 25
15 Mechanical, Packaging, and Orderable
Information ........................................................... 25
5 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (December 2012) to Revision D
Page
• Added ESD Rating table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section. ................................................................................................. 1
• Deleted the ORDERING INFORMATION table...................................................................................................................... 3
Changes from Revision B (March 2009) to Revision C
Page
• Changed the ORDERING INFORMATION table.................................................................................................................... 3
2 Submit Documentation Feedback
Copyright © 2008–2015, Texas Instruments Incorporated
Product Folder Links: TPS22901 TPS22902 TPS22902B


Features Datasheet pdf Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS22901, TPS22902, TPS22902 B SLVS803D – NOVEMBER 2008 – REVISE D JANUARY 2015 TPS2290x 3.6-V, 500-mA, 78-mΩ ON-Resistance Load Switch With C ontrolled Turnon 1 Features •1 Integ rated P-Channel Load Switch • Low Inp ut Voltage: 1 V to 3.6 V • ON-Resista nce (Typical Values) – rON = 78 mΩ a t VIN = 3.6 V – rON = 93 mΩ at VIN = 2.5 V – rON = 109 mΩ at VIN = 1.8 V – rON = 146 mΩ at VIN = 1.2 V • 5 00 mA Maximum Continuous Switch Current • Quiescent Current: 82 nA at 1.8 V • Shutdown Current: 44 nA at 1.8 V Low Control Input Thresholds Enable U se of 1.2-V, 1.8-V, 2.5-V, and 3.3-V Lo gic • Controlled Slew Rate to Avoid I nrush Currents – tr = 40 μs at VIN = 1.8 V (TPS22901/2) – tr = 220 μs at VIN = 1.8 V (TPS22902B) • Quick Outp ut Discharge (TPS22902/2B) • ESD Perf ormance Tested Per JESD 22 – 2000-V H uman Body Model (A114-B, Class II) – 1000-V Charged-Device Model (C101) • Four-Pin Wafer-Chip-Scale DSBGA Pa.
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