le80cz-tr STMicroelectronics, le80cz-tr Datasheet

le80cz-tr

Manufacturer Part Number

le80cz-tr

Description

Very Low Drop Voltage Regulators With Inhibit

Manufacturer

STMicroelectronics

Datasheet

1.LE80CZ-TR.pdf (40 pages)

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Features

■

Description

The LExxAB and LExxC are very low drop voltage

regulators available in SO-8 and TO-92 packages

and in a wide range of output voltages.

The very low drop voltage (0.2 V) and the very low

quiescent current make them particularly suitable

for low noise low power applications and specially

in battery powered systems.

They are pin to pin compatible with the older

L78Lxx series. Furthermore in the 8 pin

configuration (SO-8) they employ a shutdown

logic control (pin 5, TTL compatible). This means

that when the device is used as a local regulator,

Table 1.

February 2008

Very low dropout voltage (0.2 V typ)

Very low quiescent current (typ. 50 µA in OFF

MODE, 0.5 mA in ON MODE, no load)

Output current up to 100 mA

Output voltages of 1.25; 2.5; 2.7; 3; 3.3; 3.5; 4;

4.5; 4.7; 5; 5.5; 8 V

Internal current and thermal limit

Only 2.2 µF for stability

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

25 °C

Supply voltage rejection: 80 dB (typ.)

Temperature range: -40 to 125 °C

Device summary

LE25AB

LE27AB

LE33AB

LE12C

LE30C

LE33C

Very low drop voltage regulators with inhibit

Part numbers

LE35AB

LE45AB

LE47AB

Rev 11

LE35C

LE40C

LE45C

it’s possible to put in stand by a part of the board

even more decreasing the total power

consumption. In the three terminal configuration

(TO-92) the device is even in ON STATE,

maintaining the same electrical performances. It

needs only 2.2 µF capacitor for stability allowing

room and cost saving effect.

TO-92

LE50AB

LE80AB

LE50C

LE55C

LE80C

LExxAB

SO-8

LExxC

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