HT1117 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT1117 Datasheet PDF : 10 Pages
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HT1117 Series
Electrical Characteristics
TJ=25°C, VIN=VOUT+1.5V, IO=10mA, unless otherwise specified (see note 1)
Symbol
Parameter
VREF
Reference Voltage
VOUT
Output Voltage
DVLOAD
DVLINE
VDIF
ILIMIT
IADJ
ISS
Load Regulation (see note 2)
Line Regulation
Dropout Voltage (see note 3)
Current Limit (see note 4)
Adjust Pin Current
(Variable Version)
Quiescent Current
(Fixed Version)
RR
D V OUT
DTa
Ripple Rejection
Temperature Coefficient
Test Conditions
2.75V £ VIN £ 12V
HT1117-18
HT1117-25
HT1117-28
HT1117-33
HT1117-50
10mA £ IOUT £ 1A
2.75V £ VIN £ 12V
DVOUT=2%, IOUT=1A
DVOUT=10%
2.75V £ VIN £ 12V
2.75V £ VIN £ 12V
120Hz input ripple
COUT=22mF
-40°C<Ta<85°C
Min.
Typ.
Max.
Unit
1.225 1.250 1.275
V
1.764 1.800 1.836
V
2.45
2.50
2.55
V
2.793 2.850 2.907
V
3.234 3.300 3.366
V
4.90
5.00
5.10
V
1
¾
30
mV
¾
0.015 0.150
%/V
¾
1.1
1.3
V
1
2.3
¾
A
¾
55
120
mA
¾
8
13
mA
¾
60
¾
dB
¾
±0.4
¾
mV/°C
Note:
1. Specifications are production tested at room temperature, Ta. Specifications within the -40°C to 85°C
operating temperature range are assured by design, characterization and correlation with Statistical Quality
Controls (SQC).
2. Load regulation is measured at a constant junction temperature, using pulse testing with a low ON time and
is 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) / qJA.
3. Dropout voltage is defined as the input voltage minus the output voltage that produces a 2% change in the
output voltage from the value at VIN = VOUT+1.5V with a fixed load.
4. Current limit is measured by pulsing for a short time.
Rev. 1.00
3
August 7, 2007
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