TPS7A02 Regulator Datasheet

TPS7A02 Datasheet, PDF, Equivalent


Part Number

TPS7A02

Description

Low-Dropout Voltage Regulator

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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TPS7A02
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TPS7A02
SBVS277A – JULY 2019 – REVISED DECEMBER 2019
TPS7A02 Nanopower IQ, 25-nA, 200-mA, Low-Dropout Voltage Regulator With Fast
Transient Response
1 Features
1 Ultra-low IQ: 25 nA (typ), even in dropout
• Shutdown IQ: 3 nA (typ)
• Excellent transient response (1 mA to 50 mA)
– < 10-µs settling time
– 100-mV undershoot
• Packages:
– 1.0-mm × 1.0-mm X2SON
– SOT23-5 (preview)
– 0.64-mm x 0.64-mm DSBGA (preview)
• Input voltage range: 1.5 V to 6.0 V
• Output voltage range: 0.8 V to 5.0 V (fixed)
• Output accuracy: 1.5% over temperature
• Smart enable pulldown
• Very low dropout:
– 270 mV (max) at 200 mA (VOUT = 3.3 V)
• Stable with a 1-µF or larger capacitor
2 Applications
Wearables electronics
Thermostats, smoke and heat detectors
Gas, heat, and water meters
Blood glucose monitors and pulse oximeters
Residential circuit breakers and fault indicators
Building security and video surveillance devices
EPOS card readers
3 Description
The TPS7A02 is an ultra-small, ultra-low quiescent
current low-dropout linear regulator (LDO) that can
source 200 mA with excellent transient performance.
The TPS7A02, with an ultra-low IQ of 25 nA, is
designed specifically for applications where very-low
quiescent current is a critical parameter. This device
maintains low IQ consumption even in dropout mode
to further increase the battery life. When in shutdown
or disabled mode, the device consumes ultra-low,
3-nA IQ that helps increase the shelf life of the
battery. The TPS7A02 has an output range of 0.8 V
to 5.0 V available in 50-mV steps to support the lower
core voltages of modern microcontrollers (MCUs).
The TPS7A02 features a smart enable circuit with an
internally controlled pulldown resistor that keeps the
LDO disabled even when the EN pin is left floating
and helps minimize the external components used to
pulldown the EN pin. This circuit also helps minimize
the current drawn through the external pulldown
circuit when the device is enabled.
The TPS7A02 is fully specified for TJ = –40°C to
+125°C operation.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS7A02
X2SON (4)
DSBGA (4)(2)
SOT-23 (5)(2)
1.00 mm × 1.00 mm
0.64 mm × 0.64 mm
2.90 mm × 1.60 mm
(1) For all available packages, see the package option addendum
at the end of the data sheet.
(2) Preview package.
Load Transient Response
(VIN = VOUT + 1 V, COUT = 1 µF,
IOUT = 1 mA to 50 mA in 1 µs)
400 250
350 200
300 150
250 100
200 50
150 0
100 -50
50 -100
0 -150
-50 -200
-100
-250
-150
-200
VOUT
IOUT
-300
-350
-200 -100 0 100 200 300 400 500 600 700 800
Time (µs)
Ground Current Efficiency vs Output Current
102
100
98
96
94
92
90
88
86
84
0.001
-55°C
-40°C
TJ
0°C
25°C
85°C
125°C
0.01
0.1
1
10
Output Current (mA)
140°C
100
Curr
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.

TPS7A02
TPS7A02
SBVS277A – JULY 2019 – REVISED DECEMBER 2019
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......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 6
6.6 Switching Characteristics .......................................... 7
6.7 Typical Characteristics .............................................. 8
7 Detailed Description ............................................ 18
7.1 Overview ................................................................. 18
7.2 Functional Block Diagram ....................................... 18
7.3 Feature Description................................................. 19
7.4 Device Functional Modes........................................ 22
8 Application and Implementation ........................ 23
8.1 Application Information............................................ 23
8.2 Typical Application .................................................. 26
9 Power Supply Recommendations...................... 27
10 Layout................................................................... 28
10.1 Layout Guidelines ................................................. 28
10.2 Layout Examples................................................... 28
11 Device and Documentation Support ................. 29
11.1 Device Support .................................................... 29
11.2 Receiving Notification of Documentation Updates 29
11.3 Community Resources.......................................... 29
11.4 Trademarks ........................................................... 29
11.5 Electrostatic Discharge Caution ............................ 29
11.6 Glossary ................................................................ 29
12 Mechanical, Packaging, and Orderable
Information ........................................................... 29
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (July 2019) to Revision A
Page
• Changed device status from advance information to production data ................................................................................... 1
2 Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TPS7A02 SBVS277A – JULY 2019 – REVISED DECEMBER 2019 TPS7A02 Nanop ower IQ, 25-nA, 200-mA, Low-Dropout Vol tage Regulator With Fast Transient Resp onse 1 Features •1 Ultra-low IQ: 25 nA (typ), even in dropout • Shutdown IQ: 3 nA (typ) • Excellent transient response (1 mA to 50 mA) – < 10-µs s ettling time – 100-mV undershoot • Packages: – 1.0-mm × 1.0-mm X2SON SOT23-5 (preview) – 0.64-mm x 0.64- mm DSBGA (preview) • Input voltage ra nge: 1.5 V to 6.0 V • Output voltage range: 0.8 V to 5.0 V (fixed) • Outpu t accuracy: 1.5% over temperature • S mart enable pulldown • Very low dropo ut: – 270 mV (max) at 200 mA (VOUT = 3.3 V) • Stable with a 1-µF or large r capacitor 2 Applications • Wearable s electronics • Thermostats, smoke an d heat detectors • Gas, heat, and wat er meters • Blood glucose monitors an d pulse oximeters • Residential circuit breakers and fault indicators • Building security and video surveillan.
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