Calogic LLC CL432AVS, CL432AS, CL432ALP, CL432AD Datasheet

CORPORATION

1.25VPrecision Adjustable

Shunt Reference / Amplifier

Preliminary Product Information

CL432A

FEATURES

•• T emperatur e- Co m p ensated: 50ppm/

o

C

•• Trimmed 1% Bandgap Reference

•• Internal Amplifier with 150mA Capability

•• Nominal Temperature Range Extended to 105

o

C

•• Low Frequenc y Dynami c Output Imp edan ce: < 150m

•• Low Output Noise

PIN CONFIGU R ATIO N (Top View)

DESCRIPTION

Calogic’s CL432A is a 3-terminal Adjustable Shunt Regulator
highly accurate 1.25V bandgap reference with a 1%
tolerance. The device offers thermal stability, wide operating
current (100mA) and an extended temperature range of 0

o

C for operation in pow er supply ap plic ations. The CL432A

105

o

to

offers a wide operating voltage range of up to 10V and is an
excellent choice for voltage reference requirements in an
isolated feedback circuit for 3.0V to 3.3V switching mode
power supplies. The tight tolerance guarantees a lower
design cost for the power supply manufacturer by virtually
eliminating the need for an extra power supply manufacturing
process of the power supply.

The device is housed in several package options to meet the
designers crite ria.

ORDERING INFORMATION
Part Package Temperature Range

o

CL432ALP TO-92 0 to 105
CL432AD 8-Pin Plastic SOI C 0 to 105
CL432A V S SO T-23 0 to 105
CL432AS SOT -89 0 to 105

C

o

C

o

C

o

C

ANODE

TO-92 (LP)

SOT-23 (VS)

CATHODE

ANODE

REFERENCE

1G-33

CATHODE

REFERENCE

CATHODE

ANODE

ANODE

N/C

1J-22

1

2

3

4

SOT-89 (S)

SOIC (D)

8

REFERENCE

7

ANODE

6

ANODE

5

N/C

CATHODE

ANODE

REFERENCE

1G-35

1G-34

CALOG IC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

CL432A

CORPORATION

ABSOLUTE MAXIMUM RATINGS

SYMBOL PARAMETER RATING UNITS

V

KA

I

AK

I

KA

I

REF

P

D

T

J

T

STG

T

L

Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permane nt damag e to the device. This is a stress r ating
only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification
is not implied. Exposure to ab solut e ma ximu m rati ng conditi on s for ext ende d peri od s may affe ct reliab ili ty.

RECOMMENDED CONDITIONS

SYMBOL P ARAMETER RATING UNIT

V

KA

I

K

Cathode-Anode Reverse Breakdown 10 V
Anode-Cathode Forward Current 1 A
Operating Cathode Current 100 mA
Reference Inp ut Current 1 mA
Continuou s Power at 25oC

TO-92
8L SOIC
SOT-23
SOT-89

775
750

1000

200
Junction Temperature 150
Storage Temperature –65 to 150
Lead Temperature, Soldering 10 Seconds 300

TYPICAL THERMAL RESISTANCES

Cathode Voltage V

to 10 V

REF

Cathode Current 10 mA

PACKAGE θ

TO-92 160
SOIC 175
SOT-23 575
SOT-89 110

JA

o

C/W 80oC/W 6.3mW/oC

o

C/W 45oC/W 5.7mW/oC

o

C/W 150oC/W 1.7mW/oC

o

C/W 8oC/W 9.1mW/oC

θ

JC

mW
mW
mW
mW

o

C

o

C

o

C

TYPICAL DERATING

FUNCTIONAL BLOCK DIAGRAM

CATHODE (K)

REFERENCE (R)

+
–

+

1.25V

–

ANODE (A)

1J-23

CALOG IC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]