L4962/A Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

L4962/A

1.5A POWER SWITCHING REGULATOR

STMicroelectronics 

L4962

ELECTRICAL CHARACTERISTICS (continued)

Symbol

Parameter

Test Conditions

DYNAMIC CHARACTERISTICS (cont’d)

f

Switching frequency

∆ f Voltage stability of

∆ Vi switching frequency

Vi = 9V to 46V

∆ f Temperature stability of

∆ Tj switching frequency

Tj = 0°C to 125°C

fmax Maximum operating

switching frequency

Vo = Vref

Tsd Thermal shutdown

junction temperature

Io = 1A

DC CHARACTERISTICS

I7Q Quiescent drain current

-I2L Output leakage current

100% duty cycle

pins 2 and 14 open

0% duty cycle

0% duty cycle

Vi = 46V

SOFT START

I15SO Source current

I15SI Sink current

ERROR AMPLIFIER

V11H High level output voltage

V11L Low level output voltage

I11SI Sink output current

-I11SO

I10

Source output current

Input bias current

Gv DC open loop gain

V10 = 4.7V

V10 = 5.3V

V10 = 5.3V

V10 = 4.7V

V10 = 5.2V

V11 = 1V to 3V

I11 = 100µA

I11 = 100µA

OSCILLATOR

-I14 Oscillator source current

Min. Typ. Max. Unit

85 100 115 KHz

0.5

%

1

%

120 150

KHz

150

°C

30

40 mA

15

20 mA

1

mA

100 140 180 µA

50

70 120 µA

3.5

V

0.5

V

100 150

µA

100 150

µA

2

10

µA

46

55

dB

5

mA

4/16

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