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PDF HT7344-2 Data sheet ( Hoja de datos )
| Número de pieza | HT7344-2 | |
| Descripción | 30V 250mA TinyPower LDO | |
| Fabricantes | Holtek Semiconductor | |
| Logotipo |  |
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HT73xx-2
30V, 250mA TinyPowerTM LDO
Features
• Low power consumption
• Low voltage drop
• Low temperature coefficient
• High input voltage - up to 30V
• Output voltage accuracy: tolerance ±1%
• Over current protection
• TO-92, SOT89-3, and 8-pin SOP-EP packages
Applications
• Battery-powered equipment
• Communication equipment
• Audio/Video equipment
General Description
The HT73xx-2 device series are low power high
voltage regulators implemented in CMOS technology
which have the advantages of low voltage drop and
low quiescent current. They allow input voltages as
high as 30V. They are available with several fixed
output voltages ranging from 2.1V to 5.0V. The soft-
start function inhibits the problem of output overshoot
during power on.
Although designed primarily as fixed voltage
regulators, these devices can be used with external
components to obtain variable voltages and currents.
Selection Table
Part No.
HT7321-2
HT7323-2
HT7325-2
HT7327-2
HT7330-2
HT7333-2
HT7336-2
HT7340-2
HT7344-2
HT7350-2
Output Voltage
2.1V
2.3V
2.5V
2.7V
3.0V
3.3V
3.6V
4.0V
4.4V
5.0V
Note: ″xx″ stands for output voltages
Package
TO-92
SOT89-3
8SOP-EP
Marking
73xx-2 (for TO-92, SOT89-3)
HT73xx-2 (for 8SOP-EP)
Rev. 1.00
1 August 26, 2015
1 page  
HT73xx-2
Test Condition: VIN=VOUT+2V, IOUT=10mA, CIN=10μF, COUT=10μF and Ta=25ºC, unless otherwise noted
Load Transient Response:
HT7333-2 (VIN=5.3V, IOUT=0mA to 40mA)
Load Transient Response:
HT7350-2 (VIN=7.0V, IOUT=0mA to 40mA)
Load Transient Response:
HT7333-2 (VIN=5.3V, IOUT=40mA to 0mA)
Load Transient Response:
HT7350-2 (VIN=7.0V, IOUT=40mA to 0mA)
Line Trasient Response:
HT7333-2 (IOUT=10mA)
Line Trasient Response:
HT7350-2 (IOUT=10mA)
Rev. 1.00
5 August 26, 2015
5 Page 
Circuit for Increasing Output Voltage
VIN
C3 C1
VIN
HT73xx-2
Series
0.1uF 10uF
GND
ISS
VOUT
C2
10uF
C4
0.1uF
HT73xx-2
VOUT
R1
Common
VOUT = Vxx + VD1
D1
Common
Constant Current Regulator
VIN
C3 C1
VIN
HT73xx-2
Series
0.1uF 10uF
GND
ISS
VOUT
C2
10uF
C4
0.1uF
Common
IOUT = Vxx / RA + ISS
VOUT
RA
IOUT
RL
Common
Dual Supply
VIN
Common
VIN VOUT
HT73xx-2
VOUT
Series
C5 C6 D1
GND
10uF 0.1uF
VIN VOUT
C3 C1
HT73xx-2
Series
C2 C4
0.1uF 10uF
GND
10uF 0.1uF R1
VOUT
Common
Rev. 1.00
11 August 26, 2015
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet HT7344-2.PDF ] | |
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