TPS70345, TPS70348
TPS70351, TPS70358
TPS70302
www.ti.com
SLVS285H – AUGUST 2000 – REVISED APRIL 2010
DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
Check for Samples: TPS70345, TPS70348, TPS70351, TPS70358, TPS70302
FEATURES
DESCRIPTION
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The TPS703xx family of devices is designed to
provide a complete power management solution for
TI DSP, processor power, ASIC, FPGA, and digital
applications where dual output voltage regulators are
required. Easy programmability of the sequencing
function makes this family ideal for any TI DSP
application with power sequencing requirements.
Differentiated features, such as accuracy, fast
transient response, SVS supervisory circuit (power-on
reset), manual reset inputs, and enable function,
provide a complete system solution.
1
23
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•
•
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•
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Dual Output Voltages for Split-Supply
Applications
Independent Enable Functions (See Part
Number TPS704xx for Independent Enabling of
Each Output)
Output Current Range of 1 A on Regulator 1
and 2A on Regulator 2
Fast Transient Response
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
Ultralow 185 mA (typ) Quiescent Current
2 mA Input Current During Standby
Low Noise: 78 mVRMS Without Bypass
Capacitor
Quick Output Capacitor Discharge Feature
Two Manual Reset Inputs
2% Accuracy Over Load and Temperature
Undervoltage Lockout (UVLO) Feature
24-Pin PowerPAD™ TSSOP Package
Thermal Shutdown Protection
PWP PACKAGE
(TOP VIEW)
GND/HEATSINK
1
24
GND/HEATSINK
VIN1
2
23
VOUT1
VIN1
3
22
VOUT1
NC
4
21
VSENSE1/FB1
MR2
5
20
NC
MR1
6
19
PG1
EN
7
18
RESET
NC
SEQ
8
17
GND
9
16
VSENSE2/FB2
VIN2
10
15
VOUT2
VIN2
11
14
VOUT2
GND/HEATSINK
12
13
GND/HEATSINK
NC = No internal connection
1
2
3
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.
All other trademarks are the property of their respective owners.
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 © 2000–2010, Texas Instruments Incorporated
TPS70345, TPS70348
TPS70351, TPS70358
TPS70302
SLVS285H – AUGUST 2000 – REVISED APRIL 2010
www.ti.com
TPS70351 PWP
5V
VIN1
0.22 mF
3.3 V
VOUT1
250 kW
PG1
PG1
0.22 mF
>2 V
EN
MR2
MR2
>2 V
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