TPS70145, TPS70148
TPS70151, TPS70158
TPS70102
www.ti.com
SLVS222I – DECEMBER 1999 – REVISED AUGUST 2010
Dual-Output Low Dropout Voltage Regulators
with Power-Up Sequencing for Split-Voltage DSP Systems
Check for Samples: TPS70145, TPS70148, TPS70151, TPS70158, TPS70102
FEATURES
DESCRIPTION
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TPS701xx family devices are designed to provide a
complete power management solution for the
TMS320™ DSP family, processor power, ASIC,
FPGA, and digital applications where dual output
voltage regulators are required. Easy programmability
of the sequencing function makes the TPS701xx
family ideal for any TMS320 DSP applications with
power sequencing requirements. Differentiated
features, such as accuracy, fast transient response,
SVS supervisory circuit, manual reset inputs, and an
enable function, provide a complete system solution.
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Dual Output Voltages for Split-Supply
Applications
Selectable Power-Up Sequencing for DSP
Applications
Output Current Range of 500mA on Regulator
1 and 250mA on Regulator 2
Fast Transient Response
Voltage Options: 3.3V/2.5V, 3.3V/1.8V,
3.3V/1.5V, 3.3V/1.2V, and Dual Adjustable
Outputs
Open Drain Power-On Reset with 120ms Delay
Open Drain Power Good for Regulator 1
Ultra Low 190mA (typ) Quiescent Current
1mA Input Current During Standby
Low Noise: 65mVRMS Without Bypass Capacitor
Quick Output Capacitor Discharge Feature
Two Manual Reset Inputs
2% Accuracy Over Load and Temperature
Undervoltage Lockout (UVLO) Feature
20-Pin PowerPAD™ TSSOP Package
Thermal Shutdown Protection
The TPS701xx family of voltage regulators offer very
low dropout voltage and dual outputs with power-up
sequence control, which is designed primarily for
DSP applications. These devices have extremely low
noise output performance without using any added
filter bypass capacitors and are designed to have a
fast transient response and be stable with 10mF low
ESR capacitors.
These devices have fixed 3.3V/2.5V, 3.3V/1.8V,
3.3V/1.5V, 3.3V/1.2V, and adjustable/adjustable
voltage options. Regulator 1 can support up to
500mA, and regulator 2 can support up to 250mA.
Separate voltage inputs allow the designer to
configure the source power.
PWP PACKAGE
(TOP VIEW)
NC
VIN1
VIN1
MR1
MR2
EN
SEQ
GND
VIN2
VIN2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
VOUT1
VOUT1
VSENSE1/FB1
PG1
RESET
VSENSE2/FB2
VOUT2
VOUT2
NC
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, TMS320 are trademarks 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 © 1999–2010, Texas Instruments Incorporated
TPS70145, TPS70148
TPS70151, TPS70158
TPS70102
SLVS222I – DECEMBER 1999 – REVISED AUGUST 2010
www.ti.com
TPS70151 PWP
5V
VIN1
0.1 µF
3.3 V
VOUT1
250 kΩ
PG1
PG1
MR2
MR2
>2 V
2 V
EN
250 kΩ
RESET
RESET
EN
MR1
I/O
10 µF
VSENSE1
VIN2
DSP
MR1
>2 V
2 V
EN
MR2
MR2
RESET
RESET
MR1
EN
2 V
VSENSE2
2 V
0.7 V
VSENSE2
2 V
VSENSE2
2 V
VSENSE2
2 V
5V
>2 V
2 V
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