L431VB 查看數據表（PDF） - Niko Semiconductor

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L431VB

2.5V Low-Voltage Adjustable Precision Shunt Regulator

Niko Semiconductor 

NIKO-SEM

2.5V Low-Voltage Adjustable

Precision Shunt Regulator

L431

ABSOLUTE MAXIMUM RATINGS

PARAMETER

Cathode-Anode Reverse Breakdown Voltage - VKA

Anode-Cathode Forward Current - IAK

Reference Input Current - IREF

Storage Temperature Range - TSTG

Junction Temperature - TJ

Lead Temperature (Soldering, 10 Seconds) - TL

Continuous Power at 25 °C - PD

TO-92

SOIC-8

SOT-23

VALUE

30V

70 mA

10 mA

-65 to +150 °C

150 °C

300 °C

700 mW

650 mW

200 mW

RECOMMENDED CONDITIONS

Parameter

Cathode Voltage (VKA)

Cathode Current (IK)

Rating

VREF to 29V

10 mA

TYPICAL THERMAL RESISTANCES

Package

TO-92

SOIC-8

SOT-23

θJA

160 °C/W

175 °C/W

575 °C/W

θJC

80 °C/W

45 °C/W

150 °C/W

Typ. Derating

6.3 mW/°C

5.7 mW/°C

1.7 mW/°C

ELECTRICAL SPECIFICATIONS

(Ambient temperature must be derated base on power dissipation and package thermal characteristics. The conditions are: VKA = VREF and

IK = 10 mA unless otherwise stated)

PARAMETER

Reference Voltage

∆VREF with Temp.

Ration of Change in VREF to

Cathode Voltage

Reference Input Current

IREF Temp. Deviation

Min. IK for Regulation

Off State Leakage

Dynamic Output Impedance

TEST CONDITIONS

TA = 25 °C, L431 (0.5%)

TA = 25 °C, L431 (1%)

TA = 25 °C, L431 (2%)

VREF to 10V

10V to 30V

Over Temp.

VREF = 0V, VKA = 30V

f ≤ 1KHz, IK = 1 to 70 mA

MIN

TYP

MAX

UNITS

TEST

CIRCUIT

2.482 2.495 2.507

2.470 2.495 2.520 V

1

2.445 2.495 2.550

0.07 0.2 mV/°C 1

-2.7 -1.0

mV/V 2

-2.0 -0.4 0.3

0.7 4 µA

2

0.4 1.2 µA

2

0.4 1 mA

1

0.04 250 nA

3

0.25 0.5 Ω

1

2

JAN-08-Y02

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