HT74XX
Negative Voltage Regulator
Selection Table
Part No. Output Voltage Tolerance
HT7430 c453.0V c1775%
HT7450 c455.0V c1775%
1 January 26, 2000
Features
c183 Low power consumption
c183 Low voltage drop
c183 Low temperature coefficient
c183 High input voltage (up to c4524V)
c183 High output current : 100mA (P
d
c163 250mW)
c183 TO-92 and SOT-89 package
Applications
c183 Battery-powered equipment
c183 Communication equipment
c183 Audio/Video equipment
General Description
The HT74XX series is a set of three-terminal
high current high voltage regulator imple-
mented in CMOS technology. They can deliver
100mA output current and allow an input volt-
age as high as c4524V. They are available with
several fixed output voltages ranging from
c452.4V to c4515V. CMOS technology ensures low
voltage drop and low quiescent current.
Although designed primarily as fixed voltage
regulators, these devices can be used with ex-
ternal components to obtain variable voltages
and currents.