TPS70345-EP Datasheet, PDF (1/32 Pages) Texas Instruments – DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS

TPS70345-EP
DUALĆOUTPUT LOWĆDROPOUT VOLTAGE REGULATORS
WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
SGLS323A − JANUARY 2006 − REVISED MARCH 2006
D Controlled Baseline
− One Assembly/Test Site, One Fabrication
Site
D Extended Temperature Performance of
−55°C to 125°C
D Enhanced Diminishing Manufacturing
Sources (DMS) Support
D Enhanced Product-Change Notification
D Qualification Pedigree^†
D Dual Output Voltages for Split-Supply
Applications
D Selectable Power Up Sequencing for DSP
Applications (See TPS704xx for
Independent Enabling of Each Output)
D Output Current Range of 1 A on
Regulator 1 and 2 A on Regulator 2
D Fast Transient Response
D Output Voltages of 3.3−V/1.2−V
D Open Drain Power-On Reset With 120-ms
Delay
D Open Drain Power Good for Regulator 1
D Ultralow 185 µA (typ) Quiescent Current
D 2 µA Input Current During Standby
D Low Noise: 78 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 24-Pin PowerPAD TSSOP Package
D Thermal Shutdown Protection
† _{Component qualification in accordance with JEDEC and industry}
standards to ensure reliable operation over an extended
temperature range. This includes, but is not limited to, Highly
Accelerated Stress Test (HAST) or biased 85/85, temperature
cycle, autoclave or unbiased HAST, electromigration, bond
intermetallic life, and mold compound life. Such qualification
testing should not be viewed as justifying use of this component
beyond specified performance and environmental limits.
PWP PACKAGE
(TOP VIEW)
description
GND/HEATSINK
1
The TPS70345 is designed to provide a complete
power management solution for Texas
Instruments 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
V_IN1
2
V_IN1
3
NC
4
MR2
5
MR1
6
EN
7
SEQ
8
for any Texas Instruments DSP applications with
GND
9
power sequencing requirement. Differentiated
V_IN2
10
features, such as accuracy, fast transient
V_IN2
11
response, SVS supervisory circuit (power on GND/HEATSINK 12
reset), manual reset inputs, and enable function, _{NC − No internal connection}
provide a complete system solution.
24
GND/HEATSINK
23
V_OUT1
22
V_OUT1
21
V_SENSE1/FB1
20
NC
19
PG1
18
RESET
17
NC
16
V_SENSE2/FB2
15
V_OUT2
14
V_OUT2
13
GND/HEATSINK
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.
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  2006, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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