HT73XX
Low Power Consumption LDO
Features
·
·
Maximum output current: 250mA
Ultra low quiescent current: 4mA (typ.)
·
·
Low dropout voltage
High input voltage (up to 12V)
·
·
Low temperature coefficient
Output voltage:
1.8V, 2.5V, 2.7V, 3.0V, 3.3V, 3.5V, 5.0V
·
TO-92, SOT-89 package
·
Output voltage accuracy: tolerance ±3%
Applications
·
·
Battery-powered equipment
Wireless Communication equipment
·
·
Voltage regulator for microprocessor
Audio/Video equipment
·
Voltage regulator for LAN cards
General Description
The HT73XX series is a set of three-terminal, low power,
high voltage regulators implemented in CMOS technol-
ogy. The series features extremely low quiescent cur-
rent which is typically 4mA. They allow input voltages as
high as 12V. The device provides large current with a
significantly small dropout voltage.
The HT73XX consists of a high-precision voltage refer-
ence, an error correction circuit, and a current limited
output driver. They are available with several fixed out-
put voltages ranging from 1.8V to 5.0V. CMOS technol-
ogy ensures low dropout voltage and low current
consumption. Although designed primarily as fixed volt-
age regulators, these devices can be used with external
components to generate variable voltages and currents.
Selection Table
Part No.
HT7318
HT7325
HT7327
HT7330
HT7333
HT7335
HT7350
Output Voltage
1.8V
Tolerance
±3%
Package
Marking
2.5V
±3%
2.7V
±3%
TO-92-A
73XX-A (for TO-92-A)
73XX-B (for TO-92-B)
73XX-A (for SOT-89)
3.0V
TO-92-B
±3%
SOT-89-A
3.3V
±3%
3.5V
±3%
5.0V
±3%
Note: ²XX² stands for output voltages
Rev. 1.10
1
July 30, 2004
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
