HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : HE200109
Issued Date : 1998.07.01
Revised Date : 2001.12.17
Page No. : 1/3
H7818AE
H7818BE
3-TERMINAL POSITIVE VOLTAGE REGULATOR
Description
TO-220
The H7818_E series of three-terminal positive regulators are availa-
ble in the TO-220AB package. These regulators can provide local on
-card regulation, eliminating the distribution problems associated with single point regulation.
Each employs internal current limiting, thermal shut-down and safe operating area protection,
making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A
output current. Although designed primarily as fixed voltage regulators, these devices can be
used with external components to obtain adjustable voltages and currents.
H7818_E is characterized for operation from 0擄C to +125擄C, and if operating temperature is
always high, please refer to the power dissipation curve.
Absolute Maximum Ratings
(Ta=25擄C)
鈥?/div>
Input Voltage....................................................................................................................... 35 V
鈥?/div>
Total Power Dissipation..................................................................................... Internally limited
鈥?/div>
Operating Temperature Range .......................................................................... 0
擄C
to +125
擄C
鈥?/div>
Maximum Junction Temperature...................................................................................... 125
擄C
鈥?/div>
Storage Temperature Range........................................................................... -55
擄C
to +150
擄C
鈥?/div>
Lead Temperature (Soldering 10S).................................................................................. 230
擄C
Typical Application
Schematic Diagram
Input
Vin
1
H7818_E
2
3
Vout
10K
3.4K
6.3V
200
200
0.3
1K
2K
C1
C2
30K
Output
VREF
26
1.9K
20pF
4K
Note:
C1 and C2 are required if regulator is
located far from power supply filter
and load, or oscillation may induced
on the loop.
26
4K
1.2
12.1K
1K
GND
H7818AE, H7818BE
HSMC Product Specification
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