LRC LR432AALT3G

LESHAN RADIO COMPANY, LTD.
LR432AALT1G LINEAR INTEGRATED CIRCUIT
352*5$00$%/(35(&,6,21
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Description
The LRC LR432AALT1G is a three-terminal adjustable regulator
with a guaranteed thermal stability over applicable temperature
ranges.The output voltage may be set to any value between VREF
(approximately 1.24V) and 18V with two external resistors. It
provides very wide applications,including shunt regulator,series
regulator,switching regulator,voltage reference and others.
LR432AALT1G
SOT-23
SOT-23 1: Ref;
2: Cathode; 3: Anode
Features:
• Precise Reference Voltage to 1.24V
• Guaranteed 0.5% Reference Voltage
Tolerance
• Sink Current Capability, 80µA to100mA
• Quick Turn-on
• Adjustable Output Voltage, Vo=VREF to 18V
• 0.2 Ω Typical Output Impedance
• Marking:EA
We declare that the material of product is ROHS
compliant and does not contain any B r, Cl, and
Sb203
Ordering Information
Device
Marking
Shipping
LR432AALT1G
EA
3000/Tape & Reel
LR432AALT3G
EA
10000/Tape & Reel
1/4
LESHAN RADIO COMPANY, LTD.
LR432AALT1G LINEAR INTEGRATED CIRCUIT
Absolute Maximum Ratings
Symbol
VKA
IK
I REF
Tj
Topr
Parameter
Cathode voltage
Continuous cathode current range
Reference current range
Operating Junction Temperature Range
Operating Ambient Temperature
Electrical Characteristics
Symbol
TA= 25°C
Reference voltage
VDEV
VREF Temp Deviation
∆VREF/∆VKA
Ratio of Change in VREF to
Change in Cathode Voltage
IREF
Reference Input Current
IREF(DEV)
IREF Temp Deviation
Ik(off)
Off-state cathode current
IK(MIN)
Unit
V
mA
mA
°C
°C
( unless otherwise noted)
Parameter
VREF
Zka
Rating
18
100
3
150
- 40 to 105
Dynamic Output Impedance
Minimum Operating Current
Test Conditions
VKA=VREF, lK=10mA
(Fig. 1)
TA =25°C
TA=full range(see Note1)
VKA=VREF, lK=10mA(Fig. 1)
!K=10mA, VKA=18V to VREF
(Fig. 2)
IK=10mA, R1 =10kΩ R2=∞
(Fig.2)
TK=full range (see Note 1), R1
=10kΩ, R2=∞, IK=10mA (Fig.
2)
VREF=0 V,(Fig.3)
Vk=18V
Vka=Vref, Ik=1mA to 100mA
F ≤1kHz (Fig. 1)
VKA=VREF(Fig. 1)
LR432AALT1G
Min
1.233
Typ
1.240
Unit
Max
1.246
V
10
25
mV
-1
-2.7
mV / V
0.25
0.5
µA
0.05
0.3
µA
0.04
0.5
µA
0.2
0.4
Ω
60
80
µA
2/4
LESHAN RADIO COMPANY, LTD.
LR432AALT1G LINEAR INTEGRATED CIRCUIT
Fig.1 Test Circuit for Vka=Vref,
Vo=Vka=Vref, Co=0.1µF
Fig.2 Test Circuit for Vka>Vref,
Vo=Vka=Vref·(1+R1/R2)+Iref·R1,
Co=0.1µF
Fig.3 Test Circuit for Ik(off)
3/4
LESHAN RADIO COMPANY, LTD.
LR432AALT1G LINEAR INTEGRATED CIRCUIT
SOT-23
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M,1982
2. CONTROLLING DIMENSION: INCH.
A
L
3
1
V
2
DIM
B S
G
C
D
H
K
J
MIN
0.1102
0.0472
0.0350
0.0150
0.0701
0.0005
0.0034
0.0140
0.0350
0.0830
0.0177
A
B
C
D
G
H
J
K
L
S
V
INCHES
MAX
0.1197
0.0551
0.0440
0.0200
0.0807
0.0040
0.0070
0.0285
0.0401
0.1039
0.0236
MILLIMETERS
MIN
MAX
2.80
3.04
1.20
1.40
0.89
1.11
0.37
0.50
1.78
2.04
0.013
0.100
0.085
0.177
0.35
0.69
0.89
1.02
2.10
2.64
0.45
0.60
0.037
0.95
0.037
0.95
0.079
2.0
0.035
0.9
0.031
0.8
inches
mm
4/4