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PDF AZ432 Data sheet ( Hoja de datos )
| Número de pieza | AZ432 | |
| Descripción | LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR | |
| Fabricantes | Diodes | |
| Logotipo |  |
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Description
A Product Line of
Diodes Incorporated
AZ432
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
Features
The AZ432 series ICs are low voltage three-terminal adjustable
regulators with guaranteed thermal stability over a full operation
range. These ICs feature sharp turn-on characteristics, low
temperature coefficient and low output impedance, which make them
ideal substitutes for Zener diodes in applications such as switching
power supply, charger, motherboard and other adjustable regulators.
The output voltage can be set to any value between 1.25V and 18V
with two external resistors.
The AZ432 precision reference is offered in two voltage tolerance:
0.5% and 1.0%.
Wide Programmable Precise Output Voltage from 1.25V to 18V
High Stability under Capacitive Load
Low Temperature Deviation: 3mV Typical
Low Equivalent Full-Range Temperature Coefficient: 20PPM/oC
Typical
Low Dynamic Output Resistance: 0.05Ω Typical
High Sink Current Capacity from 0.1mA to 100mA
Low Output Noise
Wide Operating Range of -40 to +125oC
These ICs are available in 4 packages: TO-92 (bulk or ammo
packing), SOT-23, SOT-23-5 and SOT-89.
Applications
Graphic Card
PC Motherboard
Voltage Adapter
Switching Power Supply
Charger
Pin Assignments
(Top View)
3 CATHODE
2 ANODE
1 REF
(Top View)
3 CATHODE
2 ANODE
1 REF
(TO-92 (Bulk Packing)/ Z Package)
(TO-92 (Ammo Packing)/ Z Package)
(Top View)
ANODE
3
1
REF
2
CATHODE
(SOT-23/ N Package)
AZ432
Document number: DS36803 Rev. 3 - 2
1 of 18
www.diodes.com
January 2014
© Diodes Incorporated
1 page  
A Product Line of
Diodes Incorporated
Electrical Characteristics (Typical and limits apply for TA = +25 ºC, unless otherwise noted.)
AZ432
Symbol
Parameter
VREF
Reference Voltage
0.5%
1.0%
∆VREF
Deviation of Reference Voltage
Over Full Temperature Range
∆VREF
∆VKA
IREF
∆IREF
IKA
(Min)
IKA
(Off)
Ratio of Change in VREF to the
Change in Cathode Voltage
Reference Input Current
Deviation of Reference Current
Over Full Temperature Range
Minimum Cathode Current for
Regulation
Off-state Cathode Current
ZKA Dynamic Impedance
θJC
Thermal Resistance
(Junction to Case)
Test
Circuit
Conditions
4 VKA = VREF, IKA = 10mA
0 to +70°C
4
VKA = VREF,
-40 to +85°C
IKA = 10mA
-40 to +125°C
5
IKA = 10mA,
∆VKA: VREF to 16V
5 IKA = 10mA, R1 = 10KΩ, R2 = ∞
5 IKA = 10mA, R1 = 10KΩ, R2 = ∞,
TA = -40 to +125°C
4 VKA = VREF
VREF= 0, VKA = 18V
6
VKA = 6V, VREF = 0
4
VKA = VREF, IKA = 1 to 100mA,
f ≤ 1.0KHz
SOT-23
SOT-23-5
–
TO-92
SOT-89
Min Typ Max Unit
1.244
1.238
–
–
–
–
–
–
1.250
1.250
2
3
4
-0.5
0.15
0.1
1.256
1.262
10
10
15
-1.5
0.4
0.4
V
mV
mV/V
µA
µA
– 55 80 µA
– 0.04 0.10
µA
– 0.01 0.05
– 0.05 0.15 Ω
– 84.84 –
– 84.84 –
– 140.80 –
– 29.80 –
°C/W
AZ432
Document number: DS36803 Rev. 3 - 2
5 of 18
www.diodes.com
January 2014
© Diodes Incorporated
5 Page 
Package Outline Dimensions (Cont. All dimensions in mm(inch).)
(2) Package Type: TO-92 (Ammo Packing)
A Product Line of
Diodes Incorporated
AZ432
4.400(0. 173)
4.800(0.189)
1. 100(0. 043)
1. 400(0. 055)
3. 430(0.135)
MIN
0. 320(0. 013)
0. 510(0. 020)
0. 000(0. 000)
0. 380(0. 015)
Φ1. 600(0. 063)
MAX
1.270(0. 050)
Typ
2.500(0. 098)
4.000(0.157)
13.000(0. 512)
15.000(0.591)
2.540(0. 100 )
Typ
0.380(0. 015)
0.550(0.022 )
AZ432
Document number: DS36803 Rev. 3 - 2
11 of 18
www.diodes.com
January 2014
© Diodes Incorporated
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet AZ432.PDF ] | |
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