L4915 datasheet(2/7 Pages) STMICROELECTRONICS

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BLOCK DIAGRAM

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Peak Input Voltage (300 ms)

DC Input Voltage

Output Current

Internally Limited

Ptot

Power Dissipation

Internally Limited

Tstg

Storage and Junction Temperature

– 40 to 150

°C

THERMAL DATA

Symbol

Parameter

Value

Unit

Rth j-amb

Thermal Resistance Junction-ambient

Max.

°C/W

Rth j-pins

Thermal Resistance Junction-pins

Max.

°C/W

ELECTRICAL CHARACTERISTICS

(Tamb =25

oC; Vi = 13.5 V, VO = 8.5V, circuit of Fig. 1, unless otherwise specified)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Input Voltage

Output Voltage

Vi = 6 to 18V, Io = 5 to 150mA

∆VI/O

Controlled Input-output Dropout Voltage

Io = 5 to 150mA, Vi = 6 to 10V

1.6

2.1

∆VO

Line Regulation

Vi = 12 to 18V, Io = 10mA

∆Vo

Load Regulation

Io = 5 to 250mA,

ton =30

µs, toff = ≥ 1ms

100

∆Vo

Load Regulation (filter mode)

Vi = 8.5V, Io = 5 to 150mA

ton =30

µs, toff =≥ 1ms

150

250

Vref

Internal Voltage Reference

2.5

Quiescent Current

Io =5 mA

∆Iq

Quiescent Current Change

Vi = 6 to 18V, Io = 5 to 150mA

0.05

IAD

Adjust Input Current

L4915

2/7

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