L4921 Ver la hoja de datos (PDF) - STMicroelectronics

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L4921

VERY LOW DROP ADJUSTABLE REGULATORS

STMicroelectronics 

L4920/L4921

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Vi DC Input Operating Voltage

DC Reverse Input Voltage

Transient Input Overvoltages:

Load Dump:

5ms ≤ trise ≤ 10ms

τf Fall time constant = 100ms

RSOURCE ≥ 0.5Ω

Field Decay:

5ms ≤ tfall ≤ 10ms, RSOURCE ≥ 10Ω

τf Rise time constant = 33ms

TJ, TSTG Junction and Storage Temperature Range

PIN CONNECTIONS (top view)

Value

Unit

35

V

– 55 to 150

°C

TEST AND APPLICATION CIRCUIT

C = 100µF is required for stability (ESR ≤ 3Ω over T range)

R2 = 6.2KΩ.

THERMAL DATA

Symbol

Parameter

Rth j-amb

Rth j-pins

Rth j-case

Thermal Resistance Junction-ambient

Thermal Resistance Junction-pins

Thermal Resistance Junction-case

2/7

Minidip

(4 + 4)

Pentawatt

Max 80 °C/W 60 °C/W

Max 15 °C/W

–

Max

–

3.5 °C/W

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