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TPS70145 Datasheet

  • TPS70145

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

  • 523.43KB

  • 34頁(yè)

  • TI

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TPS70145, TPS70148, TPS70151, TPS70158, TPS70102
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
SLVS222A 鈥?DECEMBER 1999 鈥?REVISED MARCH 2000
D
D
D
D
D
D
Dual Output Voltages for Split-Supply
Applications
Selectable Power Up Sequencing for DSP
Applications
Output Current Range of 500 mA on
Regulator 1 and 250 mA 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
Ultra Low 190
碌A(chǔ)
(typ) Quiescent Current
1
碌A(chǔ)
Input Current During Standby
Low Noise: 65
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
20-Pin PowerPAD鈩?TSSOP Package
Thermal Shutdown Protection
PWP PACKAGE
(TOP VIEW)
description
TPS701xx 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, 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
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
V
OUT1
V
OUT1
V
SENSE1
/FB1
PG1
RESET
V
SENSE2
/FB2
V
OUT2
V
OUT2
NC
TPS70151 PWP
5V
0.1
碌F
VIN1
VOUT1
VSENSE1
PG1
VIN2
0.1
碌F
MR2
MR2
>2 V
<0.7 V
RESET
MR1
>2 V
<0.7 V
VSENSE2
SEQ
VOUT2
10
碌F
1.8 V
250 k鈩?/div>
10
碌F
250 k鈩?/div>
PG1
3.3 V
DSP
I/O
RESET
>2 V
EN
<0.7 V
EN
MR1
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
漏
2000, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

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