ELECTRICAL CHARACTERISTICS (Tj = 25

wise specified.) * Specification Refered to Tj from 0 to 125

°C

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

DYNAMIC CHARACTERISTIC

Operating input voltage range

*

8

55

V

Output voltage

3.33

3.36

3.39

V

3.292

3.36

3.427

V

*

3.22

3.36

3.5

V

Dropout voltage

0.44

0.55

V

*

0.88

V

Maximum limiting current

*

2

2.5

3

A

Efficiency

85

%

Switching frequency

*

90

100

110

KHz

SVRR

Supply voltage ripple rejection

60

dB

Voltage stability of switching

frequency

Vcc = 8 to 55V

3

6

%

Temp. stability of switching

frequency

°C4

%

Soft Start

Soft start charge current

30

40

50

µA

Soft start discharge current

6

10

14

µA

Inhibit

Low level voltage

*

0.9

V

Isource Low level

*

5

15

µA

THERMAL DATA

Symbol

Parameter

Minidip

SO16

Unit

Thermal Resistance Junction to ambient

Max.

90 (*)

110 (*)

°C/W

(*) Package mounted on board.

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Minidip

S016

Input voltage

58

V

Output DC voltage

Output peak voltage at t = 0.1

µs f=200KHz

-1

-5

V

V

Maximum output current

int. limit.

14

V

Bootstrap voltage

70

V

12

V

V3

Analogs input voltage (VCC = 24V)

13

V

6

-0.3

V

V

≤ 60°C

Minidip

1W

SO16

0.8

W

Junction and storage temperature

-40 to 150

°C

L4971

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