Switch. TPS22922 Datasheet

TPS22922 Datasheet PDF


Part

TPS22922

Description

ON-Resistance Load Switch

Manufacture

etcTI

Page 30 Pages
Datasheet
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TPS22922 Datasheet
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TPS22921, TPS22922, TPS22922B
SLVS749C – NOVEMBER 2008 – REVISED JANUARY 2015
TPS2292x 3.6-V, 2-A, 14-mΩ ON-Resistance Load Switch With Controlled Turnon
1 Features
1 Integrated P-Channel Load Switch
• Input Voltage: 0.9 V to 3.6 V
• ON-Resistance (Typical Values)
– rON = 14 mat VIN = 3.6 V
– rON = 20 mat VIN = 2.5 V
– rON = 33 mat VIN = 1.8 V
– rON = 67 mat VIN = 1.2 V
– rON = 116 mat VIN = 1.0 V
• 2-A Maximum Continuous Switch Current
• Quiescent Current:
– Typical 78 nA at 1.8 V
• Shutdown Current:
– Typical 35 nA at 1.8 V
• Low Threshold Control Input Enable the use of
1.2 V, 1.8 V, 2.5 V, or 3.3 V Logic
• Controlled Slew Rate to Avoid Inrush Currents
– tR = 30 μs at VIN = 1.8 V (TPS22921/2)
– tR = 200 μs at VIN = 1.8 V (TPS22922B)
• Quick Output Discharge (TPS22922/2B)
• ESD Performance Tested Per JESD 22
– 3000-V Human Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
• Six Terminal Wafer-Chip-Scale DSBGA Package
(nominal dimensions shown - see Mechanical,
Packaging, and Orderable Information for details)
– 0.9-mm × 1.4-mm, 0.5-mm Pitch,
0.5 mm Height (YZP)
– 0.9-mm × 1.4-mm, 0.5-mm Pitch,
0.625 mm Height (YZT)
– 0.8-mm × 1.2-mm, 0.4-mm Pitch,
0.5-mm Height (YFP)
2 Applications
• PDAs
• Cell Phones
• GPS Devices
• MP3 Players
• Peripheral Ports
• Portable Media Players
• RF Modules
3 Description
TPS22921, TPS22922, and TPS22922B are small,
low rON load switches with controlled turnon. The
TPS22921/2/2B contains a P-channel MOSFET that
can operate over an input voltage range of 0.9 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 TPS22922 and in TPS22922B, a
65-on-chip load resistor is added for output quick
discharge when the switch is turned off. The rise time
(slew rate) of the device is internally controlled in
order to avoid inrush current: TPS22921 and
TPS22922 feature a 30-μs rise time, whereas
TPS22922B is 200 μs.
TPS22921, TPS22922, and TPS22922B feature low
quiescent and shutdown currents and are available in
space-saving 6-pin wafer-chip-scale packages
DSBGA (WCSP: YZP and YZT with 0.5-mm pitch and
YFP with 0.4-mm pitch) which make them ideal for
portable electronics. The 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)
TPS22921(1)
YZT
YZP
0.9 mm × 1.4 mm
YFP 0.8 mm × 1.2 mm
TPS22922
TPS22922B
YZP
YFP
0.9 mm × 1.4 mm
0.8 mm × 1.2 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Typical Application
VBATT
SMPS
(see Note A)
CIN = 1 µF CL
VIN
ON
OFF
A. Switched-mode power supply
1
GND
TPS22921/22/22B
VOUT
GND
LOAD
CL RL
GND
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.

TPS22922 Datasheet
TPS22921, TPS22922, TPS22922B
SLVS749C – NOVEMBER 2008 – REVISED JANUARY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Typical Application ................................................ 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 = 0.9 V ...................... 6
8.7 Switching Characteristics: VIN = 1 V ......................... 6
8.8 Switching Characteristics: VIN = 1.1 V ...................... 7
8.9 Switching Characteristics: VIN = 1.2 V ...................... 7
8.10 Switching Characteristics: VIN = 1.8 V .................... 8
8.11 Switching Characteristics: VIN = 2.5 V .................... 8
8.12 Switching Characteristics: VIN = 3 V ....................... 9
8.13 Switching Characteristics: VIN = 3.6 V .................... 9
8.14 Typical Characteristics .......................................... 10
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 B (May 2012) to Revision C
Page
• Added Pin Configuration and Functions section, 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
Changes from Revision A (December 2008) to Revision B
Page
• Changed Feature From: Ultra-Low Quiescent Current: 78 nA at 1.8 V To: Ultra-Low Quiescent Current: Typical 78
nA at 1.8 V.............................................................................................................................................................................. 1
• Changed Feature From: Typical 78 nA at 1.8 V To: Ultra-Low Shutdown Current: Typical 35 nA at 1.8 V .......................... 1
• Changed Feature From: Six Terminal Wafer-Chip-Scale Package To: Six Terminal Wafer-Chip-Scale Package
(nominal dimensions shown - see addendum for details ....................................................................................................... 1
• Changed Feature From: 0.5-mm Height To: 0.5-mm Height (YFP) ....................................................................................... 1
• Changed TPS22921 QUICK OUTPUT DISCHARGE From: - To: No.................................................................................... 3
• Changed the format of the ELECTRICAL CHARACTERISTICS Test Conditions From: VIN = 1-V to VIN = 1 V.................... 5
• Deleted Note 1 - RL_CHIP = 120 Ω from all SWITCHING CHARACTERISTICS tables....................................................... 6
• Changed Figure 50 title From: tOFF Response To: tON Response ........................................................................................ 17
Changes from Original (November 2008) to Revision A
Page
• Added Note A to the TYPICAL APPLICATION circuit............................................................................................................ 1
2 Submit Documentation Feedback
Copyright © 2008–2015, Texas Instruments Incorporated
Product Folder Links: TPS22921 TPS22922 TPS22922B


Features Datasheet pdf Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS22921, TPS22922, TPS22922 B SLVS749C – NOVEMBER 2008 – REVISE D JANUARY 2015 TPS2292x 3.6-V, 2-A, 14- mΩ ON-Resistance Load Switch With Cont rolled Turnon 1 Features •1 Integrat ed P-Channel Load Switch • Input Volt age: 0.9 V to 3.6 V • ON-Resistance ( Typical Values) – rON = 14 mΩ at VI N = 3.6 V – rON = 20 mΩ at VIN = 2. 5 V – rON = 33 mΩ at VIN = 1.8 V rON = 67 mΩ at VIN = 1.2 V – rON = 116 mΩ at VIN = 1.0 V • 2-A Maxim um Continuous Switch Current • Quiesc ent Current: – Typical 78 nA at 1.8 V • Shutdown Current: – Typical 35 n A at 1.8 V • Low Threshold Control In put Enable the use of 1.2 V, 1.8 V, 2.5 V, or 3.3 V Logic • Controlled Slew Rate to Avoid Inrush Currents – tR = 30 μs at VIN = 1.8 V (TPS22921/2) – tR = 200 μs at VIN = 1.8 V (TPS22922B) • Quick Output Discharge (TPS22922/2 B) • ESD Performance Tested Per JESD 22 – 3000-V Human Body Model (A114-B, Class II) – 1000-V Charged-Device Model (.
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