ld3980 STMicroelectronics, ld3980 Datasheet

ld3980

Manufacturer Part Number

ld3980

Description

Low Drop - Low Supply Voltage Low Esr Capacitor Compatible

Manufacturer

STMicroelectronics

Datasheet

1.LD3980.pdf (16 pages)

Available stocks

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Price

Company:

BOSTOCK HK LIMITED

Part Number:

ld3980PM135R

Manufacturer:

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ld3980PU08R

Manufacturer:

STM

Quantity:

3 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ld3980PU135R

Manufacturer:

STM

Quantity:

3 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ld3980PU18R

Manufacturer:

STM

Quantity:

6 000

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Feature summary

■

Description

The LD3980 provides up to 300mA, from 1.7V to

3.6V input voltage. It can deliver a guaranteed

300mA continuous load current with a low 100mV

dropout. It is stable with ceramic capacitor. The

Block diagram

December 2006

Input voltage from 1.7 to 3.6V

Ultra low dropout voltage (130mV typ. at

300mA load)

Very low quiescent current (110µA typ. at no

load, 130µA max. at 300mA load; max 0.5µA in

OFF MODE)

Output voltage tolerance: +/- 1.0% @ 25°C, +/-

2.0% full temperature range

Guaranteed output current up to 300mA

Wide range of output voltage: 0.8V to 3.0V

Logic-controlled electronic shutdown

Compatible with ceramic capacitor C

Internal current and thermal limit

Temperature range: -40°C to 85°C

= 1µF

Rev. 1

ultra low drop-voltage, low quiescent current and

low noise makes it suitable for low power

applications and in battery powered systems.

High power supply rejection is maintained down

to low input voltage levels common to battery

operated circuits. Shutdown Logic Control

function is available this means that when the

device is used as local regulator, it is possible to

put a part of the board in standby, decreasing the

total power consumption. The device also

includes a constant current limiting and thermal

overload protection. Typical applications are in

mobile phone, personal digital assistant (PDAs),

cordless phone and similar battery powered

wireless systems, portable information

appliances..

Low ESR capacitor compatible

Low drop - Low supply voltage

DFN6 (3x3)

LD3980

www.st.com

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