HT75B15 Datasheet, PDF (1/15 Pages) Holtek Semiconductor Inc – High PSRR 150mA LDO Regulator

HT75Bxx
High PSRR 150mA LDO Regulator
Features
●● Output Voltage:
1.5V/1.8V/2.5V/2.8V/3.0V/3.3V/5V
●● High Output Voltage Accuracy: ±2%
●● Low Voltage Drop: 330mV(Typ.)
(VOUT=2.5V@IOUT=150mA)
●● Maximum Input Voltage: 7.0V
●● Guaranteed Output Current: 150mA
●● Low Power Consumption: 10μA (Typ.)
●● High ripple rejection: 70dB (1kHz@IOUT=30mA)
●● Power-Saving Shutdown Mode
●● Current limiting
●● SOT23-5 and SOT89 Package
Applications
●● Portable communication equipment
●● Portable music player
●● Electrical appliances such as cameras,
VCRs and camcorders
●● Battery-powered equipment
Selection Table
Part No.
HT75B15
HT75B18
HT75B25
HT75B28
HT75B30
HT75B33
HT75B50
Output Voltage
1.5V
1.8V
2.5V
2.8V
3.0V
3.3V
5.0V
General Description
The HT75Bxx series are CMOS-based voltage
regulator devices with high output voltage accuracy,
low quiescent current, low on-resistance, and high
ripple rejection. Each of the devices includes a voltage
reference, error amplifier, resistor-network for voltage
setting, current limit circuit, chip enable circuit and so
on.
The HT75Bxx’s current limiters' fold back circuit
also operates as a short circuit protect function for the
output current limiter.
These devices offer the benefits of low dropout
voltage as well as possessing a chip-enable function.
Additional features include an exceptionally low
10μA quiescent current in addition to excellent line
and load transient response characteristics. With these
features the devices will be appropriate for use in a
wide range of application among which would include
hand-held communication equipment.
The space-saving SOT23-5, SOT89 package will be
an attractive additional feature for pocket and hand-
held applications.
Tolerance
Package
±2%
SOT23-5
SOT89
Rev. 1.00
1
August, 9, 2011