LD1117A12 datasheet(8/21 Pages) TAITRON

8 / 21 page

1A Low Dropout Positive Voltage Regulator

Rev. A/LX

LD1117A12/ADJ -LD1117A50/ADJ

www.taitroncomponents.com

Page 8 of 21

Electrical Characteristics

For LD1117A-ADJ (VIN≤10V, TJ=25°C, unless otherwise specified)

LD1117A-ADJ

Symbol

Description

Min.

Type.

Max.

Unit

Test Conditions

1.238 1.250 1.262

VIN-VO=2V, IO=10mA

VREF

Reference Voltage

1.225 1.250 1.270

1.4V≤VIN-VO≤8V, 10mA≤IO≤1A

PD≤PD(max),

∆VLINE

Line Regulation

0.035

0.2

1.5V≤VIN-VO≤10V, IO=10mA

∆VLOAD

Load Regulation

0.2

0.4

VIN-VO=2V,10mA≤IO≤1A

ILIMIT

Current Limit

1.25

1.35

VIN-VO=2V

IADJ

Adjust Pin Current

120

∆ IADJ

Adjust Pin Current Change

0.2

1.4V≤VIN-VO≤10V, 10mA≤IO≤1A

ILOAD

Minimum Load Current

1.7

1.5V≤VIN-VO≤10V,(ADJ only)

Quiescent Current

VIN-VO=1.25V

1.0

1.1

∆VREF=1%,IO=100mA

1.08

1.18

∆VREF=1%,IO=500mA

Dropout Voltage

1.15

1.25

∆VREF=1%,IO=1A

Output Noise Voltage

0.003

10Hz≤f≤10KHz,TA=25°C

PSRR

Power Supply Ripple Rejection

Ratio

VIN-VO=3V, IO=1A, f=120Hz

CO=22uF Tantalum

Temperature Stability

0.5

Long-term Temperature Stability

0.3

TA=125°C,1000hrs

SOT-223

SOT-89

TO-220

DPAK

Thermal

Resistance

D2PAK

° C/W

For LD1117A12 (VIN≤10V, TJ=25°C, unless otherwise specified)

LD1117A12

Symbol

Description

Min.

Type.

Max.

Unit

Test Conditions

1.176

1.2

1.224

VIN =3.2V, IO=10mA

Output Voltage

1.152

1.2

1.248

3.0V≤VIN≤10V,10mA≤IO≤1A

∆VLINE

Line Regulation

1.5V≤VIN-VO≤10V, IO=10mA

∆VLOAD

Load Regulation

VIN-VO=2V,10mA≤IO≤1A

ILIMIT

Current Limit

1.25

1.35

VIN-VO=2V

Quiescent Current

VIN-VO=1.25V

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