LF33ABDTTR STMicroelectronics, LF33ABDTTR Datasheet

LF33ABDTTR

Manufacturer Part Number

LF33ABDTTR

Description

TO-252

Manufacturer

STMicroelectronics

Datasheet

1.LF33ABDTTR.pdf (46 pages)

Specifications of LF33ABDTTR

Date_code

06+

Available stocks

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LF33ABDTTR

Manufacturer:

OMRON

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BOSTOCK HK LIMITED

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Feature summary

■

Description

The LF00 series are very Low Drop regulators

available in PENTAWATT, TO-220, TO-220FP,

DPAK and PPAK package and in a wide range of

output voltages.

The very Low Drop voltage (0.45V) and the very

low quiescent current make them particularly

Schematic diagram

May 2006

Very low dropout voltage (0.45V)

Very low quiescent current (TYP. 50 µA in OFF

mode, 500 µA in ON mode)

Output current up to 500 mA

Logic-controlled electronic shutdown

Output voltages of 1.5; 1.8; 2.5; 2.7; 3; 3.3; 3.5;

4; 5; 6; 8; 8.5; 9; 12V

Internal current and thermal limit

Only 2.2 µF for stability

Available in ± 1% (AB) or ± 2% (C) selection at

25°C

Supply voltage rejection: 80db (typ.)

Temperature range: -40 to 125°C

Very low drop voltage regulators with inhibit

Rev. 15

suitable for Low Noise, Low Power applications

and specially in battery powered systems.

In the 5 pins configuration (PENTAWATT and

PPAK) a Shutdown Logic Control function is

available (pin 2, TTL compatible). This means that

when the device is used as a local regulator, it is

possible to put a part of the board in standby,

decreasing the total power consumption. In the

three terminal configuration the device has the

same electrical performance, but is fixed in the

ON state. It requires only a 2.2 µF capacitor for

stability allowing space and cost saving.

PPAK

TO-220

DPAK

LF00 series

TO-220FP

PENTAWATT

www.st.com

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