HT75Bxx
High PSRR 150mA LDO Regulator
Features
General Description
Output Voltage:
The HT75Bxx series are CMOS-based voltage
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1.5V/1.8V/2.5V/2.8V/3.0V/3.3V/5V
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.
High Output Voltage Accuracy: ±2%
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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
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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.
SOT23-5 and SOT89 Package
Applications
Portable communication equipment
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Portable music player
Electrical appliances such as cameras,
VCRs and camcorders
The space-saving SOT23-5, SOT89 package will be
an attractive additional feature for pocket and hand-
held applications.
Battery-powered equipment
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Selection Table
Part No.
Output Voltage
Tolerance
Package
HT75B15
HT75B18
HT75B25
HT75B28
HT75B30
HT75B33
HT75B50
1.5V
1.8V
2.5V
2.8V
3.0V
3.3V
5.0V
SOT23-5
SOT89
±2%
Rev. 1.00
1
August, 9, 2011