AMC431LP datasheet(2/10 Pages) ADDTEK

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AMC431

DD021_G

JUNE 2006

TYPICAL APPLICATION

BLOCK DIAGRAM

5V Precision Regulator

ABSOLUTE MAXIMUM RATINGS

(Note 1)

Cathode to Anode Voltage (V

KA) (Note 2)

-0.3V to 37V

Continuous Cathode Current (I

-100mA to 150mA

Reference Input Current (I

REF)

-50uA to 10mA

Maximum junction temperature range, TJ

150°C

Storage temperature range

-65

OC to 150OC

Lead temperature (soldiering, 10 seconds)

260°C

Note 1:

Exceeding these ratings could cause damage to the device.

All voltages are with respect to Ground.

Currents are positive into,

negative out of the specified terminal.

Note 2:

Voltage values are with respect to the anode terminal unless otherwise noted.

POWER DISSIPATION TABLE

Package

(°C /W )

Derating factor

DF(mW/°C)

TA ≥ 25°C

TA ≤ 25°C

Power rating(mW)

TA=70°C

Power rating(mW)

TA= 85°C

Power rating (mW)

156

6.41

801

513

417

LPF

156

6.41

801

513

417

71(note)

14.1

1763

1128

916

PKF

71(note)

14.1

1763

1128

916

285

3.5

438

280

228

DBF

285

3.5

438

280

228

Note :1.For PK package, Thermal Resistance-Junction to Tab (

JT ) = 35°C /W. TJ = TTAB + (PD × θJT).

D: Power Dissipation.

JA: Thermal Resistance-Junction to Ambient,

DF = 1/θJA

Junction Temperature Calculation:

J = T

A + (PD × θJA).

The

JA numbers are guidelines for the thermal performance of the device/PC-board system.

All of the above assume no ambient airflow.

CATHODE

ANODE

REF

VREF

27.5K

0.1%

27.5K

0.1%

V+

VO = 5V

Note: Rb should

provide cathode

current

≥ 1mA

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