Switch. TPS22961 Datasheet

TPS22961 Datasheet PDF


Part

TPS22961

Description

Ultra-low Resistance Load Switch

Manufacture

etcTI

Page 28 Pages
Datasheet
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TPS22961 Datasheet
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TPS22961
SLVSCI4B – FEBRUARY 2014 – REVISED SEPTEMBER 2014
TPS22961 3.5-V, 6-A, Ultra-low Resistance Load Switch
1 Features
1 Integrated Single Channel Load Switch
• VBIAS Voltage Range: 3 V to 5.5 V
• Input Voltage Range: 0.8 V to 3.5 V
• Ultra low RON Resistance
– RON = 4.4 mat VIN = 1.05 V (VBIAS = 5 V)
• 6A Maximum Continuous Switch Current
• Low Quiescent Current < 1 µA (max)
• Low Control Input Threshold Enables use of 1.2-
V/1.8-V/2.5-V/3.3-V Logic
• Controlled Slew Rate
– tR = 4.2 µs at VIN = 1.05 V (VBIAS = 5 V)
• Quick Output Discharge (QOD)
• SON 8-terminal Package with Thermal Pad
• ESD Performance Tested per JESD 22
– 2-kV HBM and 1-kV CDM
2 Applications
• Ultrabook™/Notebooks
• Desktops
• Servers
• Set-top Boxes
• Telecom Systems
• Tablet PC
3 Description
The TPS22961 is a small, ultra-low RON, single
channel load switch with controlled turn on. The
device contains an N-channel MOSFET that can
operate over an input voltage range of 0.8 V to 3.5 V
and supports a maximum continuous current of 6 A.
The combination of ultra-low RON and high current
capability of the device makes it ideal for driving
processor rails with very tight voltage dropout
tolerances. Quick rise time of the device allows for
power rails to come up quickly when the device is
enabled, thereby reducing response time for power
distribution. The switch can be independently
controlled via the ON terminal, which is capable of
interfacing directly with low-voltage control signals
originating from microcontrollers or low voltage
discrete logic. The device further reduces the total
solution size by integrating a 260 Ω pull-down
transistor for quick output discharge (QOD) when the
switch is turned off.
The TPS22961 is available in a small, space-saving 3
mm x 3 mm 8-SON package (DNY) with integrated
thermal pad allowing for high power dissipation. The
device is characterized for operation over the free-air
temperature range of –40°C to 85°C.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE
TPS22961
WSON (8)
3.00 mm x 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
VBIAS
(4.5V to 5.5V)
Power
Supply
CIN
VIN
VOUT
Processor
(x86, FPGA,
DSP)
CL
ON
OFF
ON
TPS22961
GND
Typical Application: driving high current
core rails for a processor
RON vs VIN (VBIAS = 5 V, IOUT = –200 mA)
8
7
6
5
4
3
2
-40SC
1 25SC
85SC
0
0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
VIN (V)
C007
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.

TPS22961 Datasheet
TPS22961
SLVSCI4B – FEBRUARY 2014 – REVISED SEPTEMBER 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Simplified Schematic............................................. 1
5 Revision History..................................................... 2
6 Terminal Configuration and Functions................ 3
7 Specifications......................................................... 3
7.1 Absolute Maximum Ratings ...................................... 3
7.2 Handling Ratings....................................................... 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 4
7.5 Electrical Characteristics, VBIAS = 5.0 V ................... 5
7.6 Electrical Characteristics, VBIAS = 3.0 V ................... 5
7.7 Switching Characteristics .......................................... 6
7.8 Typical Characteristics .............................................. 8
8 Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 12
8.3 Feature Description................................................. 13
9 Applications and Implementation ...................... 14
9.1 Application Information............................................ 14
9.2 Typical Application .................................................. 14
10 Power Supply Recommendations ..................... 18
11 Layout................................................................... 19
11.1 Layout Guidelines ................................................. 19
11.2 Layout Example .................................................... 19
12 Device and Documentation Support ................. 20
12.1 Trademarks ........................................................... 20
12.2 Electrostatic Discharge Caution ............................ 20
12.3 Glossary ................................................................ 20
13 Mechanical, Packaging, and Orderable
Information ........................................................... 20
5 Revision History
Changes from Revision A (February 2014) to Revision B
Page
• Fixed caption error in Filtered Output curve. ....................................................................................................................... 18
Changes from Original (February 2014) to Revision A
Page
• Initial release of full version. .................................................................................................................................................. 1
2 Submit Documentation Feedback
Product Folder Links: TPS22961
Copyright © 2014, Texas Instruments Incorporated


Features Datasheet pdf Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS22961 SLVSCI4B – FEBRUA RY 2014 – REVISED SEPTEMBER 2014 TPS2 2961 3.5-V, 6-A, Ultra-low Resistance L oad Switch 1 Features •1 Integrated Single Channel Load Switch • VBIAS Vo ltage Range: 3 V to 5.5 V • Input Vol tage Range: 0.8 V to 3.5 V • Ultra lo w RON Resistance – RON = 4.4 mΩ at VIN = 1.05 V (VBIAS = 5 V) • 6A Maxim um Continuous Switch Current • Low Qu iescent Current < 1 µA (max) • Low C ontrol Input Threshold Enables use of 1 .2- V/1.8-V/2.5-V/3.3-V Logic • Contr olled Slew Rate – tR = 4.2 µs at VIN = 1.05 V (VBIAS = 5 V) • Quick Outpu t Discharge (QOD) • SON 8-terminal Pa ckage with Thermal Pad • ESD Performa nce Tested per JESD 22 – 2-kV HBM and 1-kV CDM 2 Applications • Ultrabook /Notebooks • Desktops • Servers Set-top Boxes • Telecom Systems Tablet PC 3 Description The TPS22961 is a small, ultra-low RON, single channel load switch with controlled turn on. The device contains an N-channel .
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