HSMC H7812AA, H7812BA Datasheet
HI-SINCERITY
r
MICROELECTRONICS CORP.
H7812AA
H7812BA
3-TERMINAL POSITIVE VOLTAGE REGULATOR
Description
Spec. No. : HA200109
Issued Date : 1998.08.01
Revised Date : 2001.11.29
Page No. : 1/3
These regulators employ internal current-limiting and thermal-
TO-92
shutdown, making them essentially indestructible. They can deliver
up to 100mA output current. if the case temperature can keep in Tc=25°C.
They are intended as fixed voltage regulators in a wide range of applications including local
(on-card) regulation for elimination of noise and distribution problems associated with single-point
regulation. In addition, they can be used with power pass elements to make high-current voltage
regulators. The H7812_A used as a Zener diode/resistor combination replacement, offers an
effective output impedance improvement of typically two orders of magnitude, along with lower
quiescent current and lower noise.
Absolute Maximum Ratings (Ta=25°C)
• Input V oltage....................................................................................................................... 35 V
• Total Power Dissipation..................................................................................... Internally limited
• Operating Temperature Range .......................................................................... 0 °C to +125 °C
• Maximum Junction Temperature...................................................................................... 125 °C
• Storage Temperature Range........................................................................... -55 °C to +150 °C
• Lead Temperature (Soldering 10S).................................................................................. 260 °C
Typical Application Schematic Diagram
VoutVin
H7812_A
C1 C2
576Ω
3.41kΩ
3.89kΩ
Note:
C1 and C2 are required if regulator is
located far from power supply filte
and load, or oscillation may induced
on the loop.
H7812AA, H7812BA HSMC Product Specification
13kΩ
7.8kΩ
2.84kΩ
5kΩ
5.7kΩ
1.5kΩ
1.9kΩ
5pF
2.23kΩ
Gnd
HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : HA200109
Issued Date : 1998.08.01
Revised Date : 2001.11.29
Page No. : 2/3
Electrical Characteristics
Vin=19V, Iout=40mA, 0°C≤Tj≤125°C, Cin=0.33uF, Cout=0.1uF (unless otherwise noted)
Symbol Parameter Conditions
Tj=25°C
Vo Output Voltage
1mA≤Io≤70mA
1mA≤Io≤40mA and
14.5V≤Vin≤27V
∆Vo
∆Vo
Line Regulation
Load Regulation
IQ Quiescent Current
∆IQ
Quiescent Current
Change
Vn Output Noise Voltage
∆Vin / ∆Vout
Ripple Rejection f=120Hz 40 54 - dB
VD Dropout Voltage
Tj=25°C, 16V≤Vin≤27V
Tj=25°C, 14.5V≤Vin≤27V
Tj=25°C, 1mA≤Io≤40mA
Tj=25°C, 1mA≤Io≤100mA
Tj=25°C
1mA≤Io≤40mA
16V≤Vin≤27V
Ta=25°C, 10Hz≤f≤10KHz
Tj=25°C
Input Voltage
Require To Maintain
Tj=25°C
Line Regulation
H7812AA
Units
Min Typ Max
11.64 12 12.36
11.64 - 12.36
V
11.64 - 12.36
- 20 100
- 30 180
-1050
- 30 100
mV
mV
-35mA
--0.1
--1
mA
-80-uV
-1.7- V
14.5 - - V
Symbol Parameter Conditions
Tj=25°C
Vo Output Voltage
1mA≤Io≤70mA
1mA≤Io≤40mA and
14.5V≤Vin≤27V
∆Vo
∆Vo
Line Regulation
Load Regulation
IQ Quiescent Current
∆IQ
Quiescent Current
Change
Vn Output Noise Voltage
∆Vin / ∆Vout
Ripple Rejection f=120Hz 40 54 - dB
VD Dropout Voltage
Tj=25°C, 16V≤Vin≤27V
Tj=25°C, 14.5V≤Vin≤27V
Tj=25°C, 1mA≤Io≤40mA
Tj=25°C, 1mA≤Io≤100mA
Tj=25°C
1mA≤Io≤40mA
16V≤Vin≤27V
Ta=25°C, 10Hz≤f≤10KHz
Tj=25°C
Input Voltage
Require To Maintain
Tj=25°C
Line Regulation
H7812BA
Units
Min Typ Max
11.5 12 12.5
11.4 - 12.6
V
11.4 - 12.6
- 20 100
- 30 180
-1050
- 30 100
mV
mV
-35mA
--0.1
--1
mA
-80-uV
-1.7- V
14.5 - - V
H7812AA, H7812BA HSMC Product Specification
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