LD2127/A

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 6

www.unisonic.com.tw

QW-R102-054.a



PARAMETER

SYMBOL

RATINGS

UNIT

DC Input Voltage

18

V

Power Dissipation

Internally limited

W

Junction Temperature

+150

°C

Storage temperature

-65 ~ +150

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



RECOMMENDED OPERATING RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

Input Voltage

15

V

Operating Junction Temperature

0 ~ +125

°C



THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

165

°C/W

Junction to Case

15

°C/W



ELECTRICAL CHARACTERISTICS

For LD2127/A-ADJ

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Reference Voltage

0.98

1.0

1.02

V

Reference Voltage

0.98

1.0

1.02

V

Line Regulation

0.5

%

Load Regulation

2.0

%

Temperature stability

0.50

%

Long Term Stability

0.3

%

Operating Input Voltage

15

V

Adjustment Pin Current

7

10

μA

Adjustment Pin Current Change

0.3

2

μA

Minimum Load Current

0.3

1

mA

Current Limit

LD2127

800

mA

LD2127A

1000

0.003

%

Supply Voltage Rejection

SVR

75

dB

Dropout Voltage

1.05

1.15

V

1.15

1.25

1.18

1.28

1.22

1.35

Thermal Regulation

0.01

0.10

%/W

Thermal Shutdown

OTP

150

°C