
HI-SINCERITY
MICROELECTRONICS CORP.
H7809AA
H7809BA
3-TERMINAL POSITIVE VOLTAGE REGULATOR
Spec. No. : HA200110
Issued Date : 1998.08.01
Revised Date : 2000.11.29
Page No. : 1/3
H7809AA, 7809BA
HSMC Product Specification
Description
These regulators employ internal current-limiting and thermal-
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 H7809_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 Voltage....................................................................................................................... 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
576
3.41k
3.89k
7.8k
13k
2.84k
5.7k
100
100
Vin
Vout
2.23k
1.9k
1.5k
Gnd
5k
5pF
H7809_A
Vout
Vin
C1
C2
Note:
C1 and C2 are required if regulator is
located far from power supply filter
and load, or oscillation may induced
on the loop.
TO-92