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TPS70451PWPR Datasheet(PDF) 1 Page - Texas Instruments

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Part # TPS70451PWPR
Description  DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS70451PWPR Datasheet(HTML) 1 Page - Texas Instruments

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GND/HEATSINK
GND/HEATSINK
V
IN1
V
IN2
V
OUT2
V
OUT1
V
SENSE2/FB2
V
IN1
V
IN2
V
OUT2
V
OUT1
NC
MR
EN1
EN2
RESET
GND
NC=Nointernalconnection
GND/HEATSINK
GND/HEATSINK
NC
NC
PG2
PG1
V
SENSE1/FB1
PWPPACKAGE
(TOPVIEW)
1.8 V
VIN1
VIN2
EN1
EN2
VOUT1
VSENSE1
PG1
MR
RESET
PG2
VSENSE2
VOUT2
TPS70451PWP
5V
3.3V
I/O
PG2
Core
0.22 mF
RESET
22 mF
47 mF
0.22 mF
MR
PG1
EN1
250kW
>2V
<0.7V
250kW
>2V
<0.7V
>2V
<0.7V
EN2
250kW
TPS70445, TPS70448
TPS70451, TPS70458
TPS70402
www.ti.com
SLVS307F – SEPTEMBER 2000 – REVISED APRIL 2010
DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
Check for Samples: TPS70445, TPS70448, TPS70451, TPS70458, TPS70402
1
FEATURES
DESCRIPTION
23
Dual Output Voltages for Split-Supply
The
TPS704xx
family
of
devices
consists
of
Applications
dual-output,
low-dropout
voltage
regulators
with
integrated SVS (RESET, POR, or power on reset)
Independent Enable Functions (See Part
and power good (PG) functions. These devices are
Number TPS703xx for Sequenced Outputs)
capable of supplying 1 A and 2 A by regulator 1 and
Output Current Range of 1 A on Regulator 1
regulator 2 respectively. Quiescent current is typically
and 2 A on Regulator 2
185 mA at full load. Differentiated features, such as
Fast Transient Response
accuracy, fast transient response, SVS supervisory
circuit (power on reset), manual reset input, and
Voltage Options: 3.3-V/2.5-V, 3.3-V/1.8-V,
independent enable functions provide a complete
3.3-V/1.5-V, 3.3-V/1.2-V, and Dual Adjustable
system solution.
Outputs
Open Drain Power-On Reset with 120-ms Delay
Open Drain Power Good for Regulator 1 and
Regulator 2
Ultralow 185mA (typ) Quiescent Current
2mA Input Current During Standby
Low Noise: 78mVRMS Without Bypass Capacitor
Quick Output Capacitor Discharge Feature
One Manual Reset Input
2% Accuracy Over Load and Temperature
Undervoltage Lockout (UVLO) Feature
24-Pin PowerPAD™ TSSOP Package
Thermal Shutdown Protection
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.
2
PowerPAD is a trademark of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2000–2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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