LD1117 STMicroelectronics, LD1117 Datasheet

LD1117

Manufacturer Part Number

LD1117

Description

Manufacturer

STMicroelectronics

Datasheets

1.LD1117AV28.pdf (28 pages)

2.LD1117.pdf (28 pages)

Specifications of LD1117

Case

sot-223

Date_code

01+

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Features

■

Description

The LD1117A is a LOW DROP Voltage Regulator

able to provide up to 1A of Output Current,

available even in adjustable version (Vref=1.25V).

June 2007

Block diagram

Low dropout voltage

(1.15V typ. @ I

Very low quiescent current

(5 mA typ. @ 25°C)

Output current up to 1A

Fixed output voltage of: 1.2V, 1.8V, 2.5V,

2.85V, 3.3V, 5.0V

Adjustable version availability (V

Internal current and thermal limit

Only 10 µF for stability

Available in ± 2% (at 25°C) and 4% in full

temperature range

High supply voltage rejection:

– 80dB typ. at 25°C)

Temperature range: 0°C to 125°C

Low drop fixed and adjustable positive voltage regulators

OUT

= 1A, 25°C)

rel

= 1.25V)

Rev. 19

Concerning fixed versions, are offered the

following Output Voltages: 1.2V, 1.8V, 2.5V, 2.85V,

3.3V and 5.0V. The 2.85V type is ideal for SCSI-2

lines active termination. The device is supplied in:

SOT-223, DPAK, D

mount packages optimize the thermal

characteristics even offering a relevant space

saving effect. High efficiency is assured by NPN

pass transistor. Only a very common 10µF

minimum capacitor is needed for stability. Only

chip trimming allows the regulator to reach a very

tight output voltage tolerance, within ± 2% at

25°C.

TO-220

DPAK

LD1117A series

PAK/A and TO-220. Surface

SOT-223

PAK/A

www.st.com

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