TS1537A/B/C
Dual 1A Low Dropout Positive Voltage Regulator
Pin assignment:
1. Input 2
2. Input 1
3. Ground
4. Output 1 (3.3V/2.5V)
5. Output 2 (2.5V/1.8V)
Dual Output for 3.3V, 2.5V or 1.8V
Low Dropout Voltage 1.3V max.
General Description
The TS1537A, TS1537B & TS1537C are low dropout positive voltage regulators with minimum of 1A output current
capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as
high-speed bus termination and low current 3.3V/2.5V (TS1537A) or 3.3V/1.8V(TS1537B) or 2.5V/1.8V(TS1537C) logic
supply. This series are guaranteed to have less 1.4V dropout at full load current making it ideal to provide well regulated
outputs dual channels with up to 12V input supply.
This series is offered in 5-pin TO-263-5L package.
Features
Low dropout performance 1.3V max.
Full current rating over line and temperature.
Fast transient response
鹵2%Total
output regulation over line, load and
temperature
Build-in thermal shutdown each channel
Output current limiting for each channel
Good noise rejection
Channel 1=3.3V (TS1537A/B) or 2.5V (TS1537C)
Channel 2=2.5V (TS1537A) or 1.8V (TS1537B/C)
Block Diagram
(each channel)
Ordering Information
Part No.
TS1537ACM5
TS1537BCM5
TS1537CCM5
Note: TS1537A is ch1=3.3V, ch2=2.5V,
TS1537B is ch1=3.3V, ch2=1.8V.
TS1537C is ch1=2.5V, ch2=1.8V.
-0 ~ +85
o
C
TO-263-5L
Operating Temp.
(Ambient)
Package
Absolute Maximum Rating
Input Supply Voltage
Operation Input Supply Voltage
Power Dissipation
Operating Junction Temperature Range
Storage Temperature Range
Lead Soldering Temperature (260
o
C)
Vin
Vin (operate)
P
D
T
J
T
STG
12
10
Internally Limited
0 ~ +150
-65 ~ +150
10
V
V
W
o
o
C
C
S
TS1537A/B/C
1-5
2003/12 rev. B
1
2
3
4
5
