TS39105

1A Ultra Low LDO with Enable

1/7

Version: A08

TO-252-4L

(PPAK)

TO-252-5L

General Description

The TS39105 are 1A ultra low dropout linear voltage regulators that provide low voltage, high current output from an

extremely small package. These regulators offers extremely low dropout (typically 400mV at 1A) and very low

ground current (typically 12mA at 1A). The TS39105 are fully protected against over current faults, reversed input

polarity, reversed lead insertion, over temperature operation, positive and negative transient voltage spikes, logic

level enable control and error flag which signals whenever the output falls out of regulation.

On the TS39105, the enable pin may be tied to Vin if it is not required for enable control.

Features

●

Dropout voltage typically 0.4V @Io=1.0A

●

Output Current up to 1A

●

Low Ground Current

●

Extremely Fast Transient Response

●

Reversed Leakage & Reverse Battery Protection

●

Current Limit & Thermal Shutdown Protection

Ordering Information

Part No.

Package

Packing

TS39105CP4xx RO

TO-252-4L

2.5Kpcs / 13” Reel

TS39105CP5xx RO

TO-252-5L

2.5Kpcs / 13” Reel

Note: Where xx denotes voltage option, available are

18=1.8V, 25=2.5V, 33=3.3V, 50=5.0V

Application

●

ULDO Linear Regulator for PC add-in Cards

●

PowerPC

●

Battery Powered Equipment

●

Consumer and Personal Electronics

●

High Efficiency Linear Power Supplies

●

SMPS Post Regulator and DC to DC Modules

●

High-efficiency Post Regulator for Switching Supply

●

Portable Application

●

Low-Voltage microcontrollers and Digital Logic

Typical Application Circuit

Parameter

Symbol

Value

Units

Supply Voltage

-20V ~ +20

V

Enable Voltage

+20

V

Operation Input Voltage

+2.25 ~ +16

V

Operation Enable Voltage

+2.25 ~ +16

V

Power Dissipation (Note 4)

Internally Limited

W

Operating Junction Temperature Range

-40 ~ +125

Storage Temperature Range

-65 ~ +150

Lead Soldering Temperature (260

5

S

ESD

(Note 3)

Pin Definition:

1. Input

2. Enable

3. Output (tab)

4. N/C

5. Ground