TS1581

5A Dual Input LDO

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Version: A07

TO-220-5L

TO-263-5L

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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

●

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

Ordering Information

Part No.

Package

Packing

TS1581CZ5 C0

TO-220-5L

50pcs / Tube

TS1581CZ5xx C0

TO-220-5L

50pcs / Tube

TS1581CM5 RN

TO-263-5L

800pcs / 13” Reel

TS1581CM5xx RN

TO-263-5L

800pcs / 13” Reel

Note: Where xx denotes voltage option, available are

3.3V, 2.5V & 1.8V. Leave blank for adjustable

version.

Contact factory for additional voltage options.

Applications

●

High efficiency linear regulator

●

Post regulators for switching supplies

●

Advance graphic card

●

Adjustable power supply

Block Diagram

Typical Application Circuit

Pin Definition:

1. Sense

2. Adj / Gnd

3. Output

4. V Control

5. V Power