TPS70745 Datasheet, PDF (1/34 Pages) Texas Instruments – DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS

TPS70745, TPS70748, TPS70751, TPS70758, TPS70702
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
SLVS291 – MAY 2000
D Dual Output Voltages for Split-Supply
Applications
D Selectable Power Up Sequencing for DSP
Applications
D Output Current Range of 250 mA on
Regulator 1 and 125 mA on Regulator 2
D Fast Transient Response
D Voltage Options are 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
D Open Drain Power-On Reset With 120-ms
Delay
D Open Drain Power Good for Regulator 1
D Ultra Low 190 µA (typ) Quiescent Current
D 1 µA Input Current During Standby
D Low Noise: 65 µV_RMS Without Bypass
Capacitor
D Quick Output Capacitor Discharge Feature
D Two Manual Reset Inputs
D 2% Accuracy Over Load and Temperature
D Undervoltage Lockout (UVLO) Feature
D 20-Pin PowerPAD™ TSSOP Package
D Thermal Shutdown Protection
description
TPS707xx family devices are designed to provide
a complete power management solution for 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 DSP applications with power sequencing
requirement. Differentiated features, such as
accuracy, fast transient response, SVS supervi-
sory circuit (power on reset), manual reset inputs,
and enable function, provide a complete system
solution.
NC
V_IN1
V_IN1
MR1
MR2
EN
SEQ
GND
V_IN2
V_IN2
PWP PACKAGE
(TOP VIEW)
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
NC
V_OUT1
V_OUT1
V_SENSE1/FB1
PG1
RESET
V_SENSE2/FB2
V_OUT2
V_OUT2
NC
TPS70751 PWP
5V
VIN1
VOUT1
3.3 V
DSP
I/O
0.1 µF
0.1 µF
VIN2
VSENSE1
PG1
MR2
RESET
10 µF
250 kΩ
PG1
MR2 _{>2 V}
<0.7 V
250 kΩ
RESET
>2 V ^EN
<0.7 V
EN
SEQ
MR1
VSENSE2
VOUT2
MR1
>2 V
<0.7 V
10 µF
1.8 V
Core
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 Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2000, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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