TPS70845_16 Datasheet, PDF (1/37 Pages) Texas Instruments – DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS

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TPS70845, TPS70848
TPS70851, TPS70858
TPS70802
SLVS301D – JUNE 2000 – REVISED DECEMBER 2007
DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
FEATURES
1
•23 Dual Output Voltages for Split-Supply
Applications
• Independent Enable Functions (See Part
Number TPS707xx for Sequenced Outputs)
• Output Current Range of 250 mA on Regulator
1 and 125 mA on Regulator 2
• Voltage Options: 3.3-V/2.5-V, 3.3-V/1.8-V,
3.3-V/1.5-V, 3.3-V/1.2-V, and Dual Adjustable
Outputs
• Open Drain Power-On Reset with 120-ms Delay
• Open Drain Power Good for Regulator 1 and
Regulator 2
• Ultralow 190-µA (typ) Quiescent Current
• 1-µA Input Current During Standby
• Low Noise: 65 µV_RMS Without Bypass
Capacitor
• Quick Output Capacitor Discharge Feature
• One Manual Reset Input
• 2% Accuracy Over Load and Temperature
• Undervoltage Lockout (UVLO) Feature
• 20-Pin PowerPAD™ TSSOP Package
• Thermal Shutdown Protection
DESCRIPTION
The TPS708xx is a low dropout voltage regulator with
integrated SVS (RESET, POR, or power on reset)
and power good (PG) functions. These devices are
capable of supplying 250 mA and 125 mA by
regulator 1 and regulator 2 respectively. Quiescent
current is typically 190 µA at full load. Differentiated
features, such as accuracy, fast transient response,
SVS supervisory circuit (power on reset), manual
reset input, and independent enable functions provide
a complete system solution.
PWP PACKAGE
(TOP VIEW)
NC
1
V_IN1
2
V_IN1
3
MR
4
EN1
5
EN2
6
RESET
7
GND
8
V_IN2
9
V_IN2
10
20
NC
19
V_OUT1
18
V_OUT1
17
V_SENSE1/FB1
16
PG1
15
PG2
14
V_SENSE2/FB2
13
V_OUT2
12
V_OUT2
11
NC
NC: No internal connection
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2000–2007, Texas Instruments Incorporated