TS1581 Datasheet, PDF (1/7 Pages) Taiwan Semiconductor Company, Ltd – 5A Dual Input Low Dropout Positive Voltage Regulator

TS1581
5A Dual Input Low Dropout Positive Voltage Regulator
Pin Assignment:
1. Sense
2. Adj / Gnd
3. Output
4. V control
5. V power
Low Dropout Voltage 0.7V max.
Fix or Adjustable Output
General Description
The TS1581 family is a positive adjustable and fixed voltage regulator developed to provide 5A with Higher efficiency than
currently available devices. All internal circuit is designed to operate down to 700mV input to output differential and the
dropout voltage is fully specified as a function of load current. Dropout voltage of the device is 100mV at light loads and
rising to 700mV at maximum output current. A Second low current input is required to achieve this dropout. The TS1581
series are designed to prevent device failure under the worst operation condition with both Thermal Shutdown and
Current Fold-back.
Features
Ordering Information
Very low dropout voltage: 700mV @5A
Output current up to 5A
Low current Consumption
High Accuracy Output Voltage: +/- 1%
Fast transient response
Remote sense
Internal current limit
Thermal shutdown protection
Applications
High efficiency linear voltage regulators
Post regulators for switching supplies.
Advance graphic card
Adjustable power supply
Block Diagram
Part No.
Operating Temp. Package
(Ambient)
TS1581CZ5xx
TO-220-5L
TS1581CZ5
0 ~ +85 ^oC
TS1581CM5xx
TO-263-5L
TS1581CM5
Note: Where xx denotes voltage option, available are
3.3V and 2.5V. Leave blank for adjustable version.
Contact factory for additional voltage options.
Typical Application Circuit
TS1581 series
1-1
2003/12 rev. B