Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 7
Copyright © 2000
Rev. 1.3, 2005-02-24
WWW.Microsemi .COM
LX432
Low Voltage Adjustable Precision Shunt
Regulator
P
RODUCTION
D
ATA
S
HEET
TM
®
PARAMETER MEASUREMENT INFORMATION
V
REF
Input
V
KA
I
K
Figure 11 – Test Circuit For V
KA
= V
REF
V
REF
Input
V
KA
R1
R2
I
REF
I
K
Figure 12 – Test Circuit For V
KA
> V
REF
R1I
R2
R1
1VVV
REFREFKAO
×++×==
Input
V
KA
I
OFF
Figure 13 – Test Circuit For I
OFF
M
M
E
E
A
A
S
S
U
U
R
R
E
E
M
M
E
E
N
N
T
T
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 8
Copyright
©
2000
Rev. 1.3, 2005-02-24
WWW.Microsemi .COM
LX432
Low Voltage Adjustable Precision Shunt
Regulator
P
RODUCTION
D
ATA
S
HEET
TM
®
TYPICAL APPLICATION
_
+
+
+
+
+
DRV
GND
V
CC
I
SENSE
V
FB
LX432
V
OUT
3.3V
V
IN
110 / 220V AC
Controller
UC384x / LX155x
Figure 12 – LX432 In A Power Supply Isolated Feedback Application
500
0.1µF
140
120
1000µF
0.1µF
470µF
0.1µF
12V
3.3V
2.7V
(e.g. Intel i740
®
chipset)
LX432
Figure 13 – LX432 in a 3.3V to 2.7V Low Dropout Regulator Application
A
A
P
P
P
P
L
L
I
I
C
C
A
A
T
T
I
I
O
O
N
N
S
S
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
Copyright
©
2000
Rev. 1.3, 2005-02-24
WWW.Microsemi .COM
LX432
Low Voltage Adjustable Precision Shunt
Regulator
P
RODUCTION
D
ATA
S
HEET
TM
®
PACKAGE DIMENSIONS
SC
3-Pin Plastic SOT-23
H
G
F
E
J
I
A
B
D
C
Note:
1. Dimensions do not include mold flash or
protrusions; these shall not exceed
0.155mm(.006”) on any side. Lead dimension
shall not include solder coverage.
M
ILLIMETERS
I
NCHES
Dim
MIN MAX MIN MAX
A 0.89 1.12 0.035 0.044
B 0.37 0.51 0.015 0.020
C 0.085 0.18 0.003 0.007
D 2.80 3.04 0.110 0.120
E 1.20 1.40 0.047 0.055
F 0.89 1.09 0.035 0.043
G 1.78 2.05 0.070 0.080
H 2.10 2.64 0.083 0.104
I 0.35 0.55 0.014 0.022
J 0.013 0.10 0.0005 0.0039
LP
3-Pin Plastic TO-92
B
K
G
N
C
N
H
A
D
J
xx
SECT x-x
F
V
Note:
1. Dimensions do not include mold flash or
protrusions; these shall not exceed
0.155mm(.006”) on any side. Lead dimension
shall not include solder coverage.
M
ILLIMETERS
I
NCHES
Dim
MIN MAX MIN MAX
A 4.45 5.20 0.175 0.205
B 4.32 5.33 0.170 0.210
C 3.18 4.19 0.125 0.165
D 0.41 0.55 0.016 0.022
F 0.41 0.48 0.016 0.019
G 1.15 1.39 0.045 0.055
H 2.42 2.66 0.095 0.105
J 0.39 0.50 0.015 0.020
K 12.70 - 0.500 -
N 2.05 2.66 0.080 0.105
V 3.43 - 0.135 -
M
M
E
E
C
C
H
H
A
A
N
N
I
I
C
C
A
A
L
L
S
S

LX432ILP

Mfr. #:
Manufacturer:
Microchip / Microsemi
Description:
IC REG SHUNT PREC ADJ LV TO92
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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