TPS70245, TPS70248
TPS70251, TPS70258
TPS70202
www.ti.com
SLVS286E – JUNE 2000 – REVISED DECEMBER 2009
DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
FEATURES
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 500mA and 250mA by regulator
1 and regulator 2 respectively. Quiescent current is
typically 190μA 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.
1
23
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Dual Output Voltages for Split-Supply
Applications
Independent Enable Functions (See Part
Number TPS701xx for Sequenced Outputs)
Output Current Range of 500mA on Regulator
1 and 250mA on Regulator 2
Fast Transient Response
Voltage Options: 3.3V/2.5V, 3.3V/1.8V,
3.3V/1.5V, 3.3V/1.2V, and Dual Adjustable
Outputs
Open Drain Power-On Reset with 120ms Delay
Open Drain Power Good for Regulator 1 and
Regulator 2
Ultralow 190μA (typ) Quiescent Current
1μA Input Current During Standby
Low Noise: 65μVRMS Without Bypass Capacitor
Quick Output Capacitor Discharge Feature
One Manual Reset Input
2% Accuracy Over Load and Temperature
Undervoltage Lockout (UVLO) Feature
20-Pin PowerPAD™ TSSOP Package
Thermal Shutdown Protection
PWP PACKAGE
(TOP VIEW)
NC
VIN1
VIN1
MR
EN1
EN2
RESET
GND
VIN2
VIN2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
VOUT1
VOUT1
VSENSE1/FB1
PG1
PG2
VSENSE2/FB2
VOUT2
VOUT2
NC
NC = No internal connection
TPS70251 PWP
5V
VIN1
0.1 mF
10 mF
VSENSE1
250 kW
PG1
PG1
VIN2
MR
MR
>2 V
EN1
2 V
250 kW
>2 V
2 V
RESET
EN1
2 V
PG2
EN1
MR
EN2
VOUT2
VOUT2
2 V
250 kW
VOUT2
2 V
VSENSE2
2 V
EN2
VOUT2
VOUT2
2.0 V
OUT
EN
VO
很抱歉,暂时无法提供与“TPS70202PWP”相匹配的价格&库存,您可以联系我们找货
免费人工找货