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TPS70248 Datasheet

  • TPS70248

  • DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED S...

  • 30頁

  • TI

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TPS70245, TPS70248, TPS70251, TPS70258, TPS70202
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
SLVS286B 鈥?JUNE 2000 鈥?REVISED OCTOBER 2002
D
Dual Output Voltages for Split-Supply
D
D
D
D
D
D
Applications
Independent Enable Functions (See Part
Number TPS701xx for Sequenced Outputs)
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
Open Drain Power Good for Regulator 1
and Regulator 2
D
Ultralow 190
碌A
(typ) Quiescent Current
D
1
碌A
Input Current During Standby
D
Low Noise: 65
碌V
RMS
Without Bypass
D
D
D
D
D
D
Capacitor
Quick Output Capacitor Discharge Feature
One Manual Reset Input
2% Accuracy Over Load and Temperature
Undervoltage Lockout (UVLO) Feature
20-Pin PowerPAD錚?TSSOP Package
Thermal Shutdown Protection
PWP PACKAGE
(TOP VIEW)
description
The TPS702xx is a low dropout voltage regulator
with integrated SVS (RESET, POR, or power on
reset) and power good (PG) functions. These
devices are capable of supplying 500 mA and
250 mA by regulator 1 and regulator 2 respective-
ly. Quiescent current is typically 190
碌A
at full
load. Differentiated features, such as accuracy,
fast transient response, SVS supervisory circuit
(power on reset), manual reset input, and
independent enable functions provide a complete
system solution.
TPS70251 PWP
5V
0.1
碌F
VIN1
VOUT1
VSENSE1
PG1
VIN2
0.1
碌F
>2 V
<0.7 V
>2 V
<0.7 V
VOUT2
EN2
MR
MR
>2 V
10
碌F
NC
V
IN1
V
IN1
MR
EN1
EN2
RESET
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
PG2
V
SENSE2
/FB2
V
OUT2
V
OUT2
NC
NC 鈥?No internal connection
3.3 V
I/O
250 k鈩?/div>
PG1
250 k鈩?/div>
<0.7 V
RESET
PG2
250 k鈩?/div>
RESET
EN1
EN1
PG2
EN2
VSENSE2
1.8 V
10
碌F
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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