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TPS73632 Datasheet Preview

TPS73632 Datasheet

400-mA Low-Dropout Regulator

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TPS736
SBVS038U – SEPTEMBER 2003 – REVISED JANUARY 2015
TPS736xx Cap-Free, NMOS, 400-mA Low-Dropout Regulator with Reverse Current
Protection
1 Features
1 Stable with No Output Capacitor or Any Value or
Type of Capacitor
• Input Voltage Range of 1.7 V to 5.5 V
• Ultra-Low Dropout Voltage: 75 mV typ
• Excellent Load Transient Response—with or
without Optional Output Capacitor
• New NMOS Topology Delivers Low Reverse
Leakage Current
• Low Noise: 30 μVRMS typ (10 Hz to 100 kHz)
• 0.5% Initial Accuracy
• 1% Overall Accuracy Over Line, Load, and
Temperature
• Less Than 1 μA max IQ in Shutdown Mode
• Thermal Shutdown and Specified Min/Max
Current Limit Protection
• Available in Multiple Output Voltage Versions
– Fixed Outputs of 1.20 V to 5.0 V
– Adjustable Output from 1.20 V to 5.5 V
– Custom Outputs Available
2 Applications
• Portable/Battery-Powered Equipment
• Post-Regulation for Switching Supplies
• Noise-Sensitive Circuitry such as VCOs
• Point of Load Regulation for DSPs, FPGAs,
ASICs, and Microprocessors
3 Description
The TPS736xx family of low-dropout (LDO) linear
voltage regulators uses a new topology: an NMOS
pass element in a voltage-follower configuration. This
topology is stable using output capacitors with low
ESR, and even allows operation without a capacitor.
It also provides high reverse blockage (low reverse
current) and ground pin current that is nearly constant
over all values of output current.
The TPS736xx uses an advanced BiCMOS process
to yield high precision while delivering very low
dropout voltages and low ground pin current. Current
consumption, when not enabled, is under 1 μA and
ideal for portable applications. The extremely low
output noise (30 μVRMS with 0.1-μF CNR) is ideal for
powering VCOs. These devices are protected by
thermal shutdown and foldback current limit.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SOT-23 (5)
2.90 mm x 1.60 mm
TPS736xx
SOT-223 (6)
6.50 mm x 3.50 mm
VSON (8)
3.00 mm x 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Circuit for Fixed-Voltage Versions
Optional
Optional
VIN
IN
OUT
VOUT
TPS736xx
EN GND NR
ON
OFF
Optional
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.




etcTI

TPS73632 Datasheet Preview

TPS73632 Datasheet

400-mA Low-Dropout Regulator

No Preview Available !

TPS736
SBVS038U – SEPTEMBER 2003 – REVISED JANUARY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings ............................................................ 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 6
6.6 Typical Characteristics .............................................. 7
7 Detailed Description ............................................ 12
7.1 Overview ................................................................. 12
7.2 Functional Block Diagram ....................................... 12
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 14
8 Application and Implementation ........................ 15
8.1 Application Information............................................ 15
8.2 Typical Applications ................................................ 15
9 Power Supply Recommendations...................... 20
10 Layout................................................................... 20
10.1 Layout Guidelines ................................................. 20
10.2 Layout Examples................................................... 20
10.3 Power Dissipation ................................................. 21
10.4 Thermal Protection................................................ 22
10.5 Package Mounting ................................................ 22
11 Device and Documentation Support ................. 23
11.1 Device Support...................................................... 23
11.2 Documentation Support ........................................ 23
11.3 Trademarks ........................................................... 23
11.4 Electrostatic Discharge Caution ............................ 23
11.5 Glossary ................................................................ 23
12 Mechanical, Packaging, and Orderable
Information ........................................................... 23
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision T (August 2010) to Revision U
Page
• Added ESD Ratings 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
• Changed "free-air temperature" to "junction temperature" in Absolute Maximum Ratings condition statement ................... 4
• Changed "free-air temperature" to "junction temperature" in Recommended Operating Conditions condition
statement ............................................................................................................................................................................... 4
• Changed Thermal Information table; updated thermal resistance values for all packages .................................................. 5
Changes from Revision S (August, 2009) to Revision T
Page
• Replaced Dissipation Ratings Table with Thermal Information Table.................................................................................... 4
Changes from Revision R (May, 2008) to Revision S
Page
• Changed Figure 10 ................................................................................................................................................................ 7
• Added paragraph about recommended start-up sequence to Internal Current Limit section .............................................. 14
• Added paragraph about current foldback and device start-up to Enable Pin and Shutdown section .................................. 14
2
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Product Folder Links: TPS736
Copyright © 2003–2015, Texas Instruments Incorporated


Part Number TPS73632
Description 400-mA Low-Dropout Regulator
Maker etcTI
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