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TPS70302 Datasheet

  • TPS70302

  • DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQ...

  • 35頁

  • TI

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TPS70345, TPS70348, TPS70351, TPS70358, TPS70302
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
SLVS285A 鈥?AUGUST 2000 鈥?REVISED OCTOBER 2002
D
Dual Output Voltages for Split-Supply
D
D
D
D
D
Applications
Selectable Power Up Sequencing for DSP
Applications (See TPS704xx for
Independent Enabling of Each Output)
Output Current Range of 1 A on
Regulator 1 and 2 A on Regulator 2
Fast Transient Response
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
Open Drain Power-On Reset With 120-ms
Delay
D
D
D
D
D
D
D
D
D
D
Open Drain Power Good for Regulator 1
Ultralow 185
碌A
(typ) Quiescent Current
2
碌A
Input Current During Standby
Low Noise: 78
碌V
RMS
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錚?TSSOP Package
Thermal Shutdown Protection
PWP PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
description
TPS703xx family of devices are designed to
GND/HEATSINK
V
IN1
provide a complete power management solution
V
IN1
for TI DSP, processor power, ASIC, FPGA, and
NC
digital applications where dual output voltage
MR2
regulators are required. Easy programmability of
MR1
the sequencing function makes this family ideal
EN
for any TI DSP applications with power
SEQ
sequencing requirement. Differentiated features,
GND
such as accuracy, fast transient response, SVS
V
IN2
supervisory circuit (power on reset), manual reset
V
IN2
inputs, and enable function, provide a complete
GND/HEATSINK
system solution.
TPS70351 PWP
5V
0.22
碌F
VIN1
VOUT1
VSENSE1
PG1
VIN2
0.22
碌F
MR2
MR2
>2 V
<0.7 V
RESET
MR1
>2 V
<0.7 V
22
碌F
250 k鈩?/div>
PG1
3.3 V
GND/HEATSINK
V
OUT1
V
OUT1
V
SENSE1
/FB1
NC
PG1
RESET
NC
V
SENSE2
/FB2
V
OUT2
V
OUT2
GND/HEATSINK
NC 鈥?No internal connection
DSP
I/O
250 k鈩?/div>
RESET
>2 V
EN
<0.7 V
EN
MR1
VSENSE2
SEQ
VOUT2
47
碌F
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.
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
錚?/div>
2002, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

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