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HT75B18 Datasheet(PDF) 4 Page - Holtek Semiconductor Inc

Part # HT75B18
Description  High PSRR 150mA LDO Regulator
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT75B18 Datasheet(HTML) 4 Page - Holtek Semiconductor Inc

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Rev. 1.00
4
August, 9, 2011
HT75Bxx
Electrical Characteristics
Ta=25°C, VIN=VOUT+1V, IOUT=30mA, unless otherwise specified (Note2)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VIN
Input Voltage
1.5V≤VOUT≤5V
2.5
7
V
∆VOUT
Output Voltage Tolerance 1mA≤I
OUT
≤30mA
1.5V≤VOUT≤5.0V
-2
+2
%
∆VLINE
Line Regulation
VOUT+0.5V≤VIN≤7.0V, IOUT=10mA
0.02
0.1
%/V
∆VLOAD Load Regulation (Note 3) 1mA≤IOUT≤150mA
1.5V≤VOUT≤1.8V
13
30
mV
2.5V≤VOUT≤3.0V
14
35
VOUT≥3.3V
15
40
VDROP
Dropout Voltage (Note 4) ∆V
OUT
=2%
IOUT=150mA
VOUT=1.5V
0.54
0.86
V
VOUT=1.8V
0.44
0.65
2.5V≤VOUT≤5.0V
0.33
0.46
ISHORT
Short Current Limit
VOUT=0V
50
mA
ISS
Supply Current
IOUT=0mA
10
20
μA
ISD
Shutdown Current
CE=GND
0.1
1
μA
VIH
CE Input High Threshold VOUT+1V≤VIN≤7V
1
7
V
VIL
CE Input Low Threshold VOUT+1V≤VIN≤7V
0
0.3
V
RR
Ripple Rejection
IOUT=30mA
f=1kHz
70
dB
f=10kHz
53
VNOISE
Output Noise
Bandwidth=10Hz to 100kHz
30
μVrms
TC
Temperature Coefficient T
C
=
OUT
a
OUT
V
TV
ƥ
IOUT=30mA, -40°C≤Ta≤85°C
±100
ppm/°C
Note 1. Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating
Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific
performance limits. The guaranteed specifications apply only for the test conditions listed.
2. Specifications are production tested at Ta=room temperature. Specifications over the -40°C to 85°C
operating temperature range are assured by design, characterization and correlation with Statistical
Quality Controls (SQC).
3. Load regulation is measured at constant junction temperature, using pulse testing with a short ON time.
The devices are guaranteed up to the maximum power dissipation. Power dissipation is determined by the
input/output differential voltage and the output current. Guaranteed maximum power dissipation will not
be available over the full input/output range. The maximum allowable power dissipation at any ambient
temperature is PD=(TJ(MAX)–Ta)/θJA.
4. Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a
specified output current. Under dropout conditions, the output voltage will be equal to: VIN – VDROP.


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