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H78LXX Datasheet(HTML) 1 Page - Hi-Sincerity Mocroelectronics

Part No. H78LXX
Description  3-TERMINAL POSITIVE VOLTAGE REGULATORS
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Maker  HSMC [Hi-Sincerity Mocroelectronics]
Homepage  http://www.hsmc.com.tw
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H78LXX Datasheet(HTML) 1 Page - Hi-Sincerity Mocroelectronics

 
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HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : IC200403
Issued Date : 2004.03.01
Revised Date : 2004.08.31
Page No. : 1/10
H78LXXAM / BM, H78LXXAA / BA
HSMC Product Specification
H78LXXAM / BM
H78LXXAA / BA
3-TERMINAL POSITIVE VOLTAGE REGULATORS
Description
These regulators employ internal current-limiting and thermal-shutdown,
making them essentially indestructible. They can deliver up to 100mA
output current.
Features
• Maximum Output Current of 100mA (Tc=25°C)
• Internal Short-Circuit Current Limiting
• Internal Thermal Overload Protection
• TO-92 & SOT-89 Package
Absolute Maximum Ratings
(Ta=25
°C, Unles Otherwise Specified)
Characteristic
Symbol
Rating
Unit
Input Voltage
V
IN
40
V
TO-92
700
mW
Power Dissipation
P
D
SOT-89
500
mW
Operating Temperature
T
opr
-30 to 85
oC
Storage Temperature
T
stg
-55 to 150
oC
Junction Temperature
T
j
150
oC
Thermal Resistance
R
th(j-a)
208
oC/W
Schematic Diagram & Equivalent Circuit
H78LXX Series Pin Assignment
Typical Application
Schematic Diagram
Equivalent Circuit
VOUT
VIN
3-Lead Plastic TO-92
Package Code: A
Pin 1: VOUT
Pin 2: GND
Pin 3: VIN
1 2
3
3-Lead Plastic SOT-89
Package Code: M
Pin 1: VOUT
Pin 2: GND
Pin 3: VIN
1
2
3
Note 1: C
IN is required if regulator is
located an appreciable distance from
power supply filter.
Note 2: C
OUT is not needed for stability;
however, it does improve transient
response. Values of less than 0.1uF could
cause instability.
1
3
2
H78LXX
Series
VOUT
VIN
CIN
0.33uF
(Note 1)
COUT
0.1uF
(Note 2)
3
1
2
Starting
Circuit
Reference
Voltage
Current
Generator
Error
Amplifier
SOA
Protection
Thermal
Protection
Series
Pass
Element
Output
GND
Input


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