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PDF HT7327 Data sheet ( Hoja de datos )
| Número de pieza | HT7327 | |
| Descripción | Low Power Consumption LDO | |
| Fabricantes | Holtek Semiconductor | |
| Logotipo |  |
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HT73XX
Low Power Consumption LDO
Features
· Ultra low quiescent current: 3.5mA (typ.)
· High input voltage (up to 12V)
· Output voltage:
1.8V, 2.5V, 2.7V, 3.0V, 3.3V, 3.5V, 5.0V
· Output voltage accuracy: tolerance ±3%
· Maximum output current: 250mA
· Low dropout voltage
· Low temperature coefficient
· TO-92, SOT-89 package
Applications
· Battery-powered equipment
· Voltage regulator for microprocessor
· Voltage regulator for LAN cards
· Wireless Communication equipment
· Audio/Video equipment
General Description
The HT73XX series is a set of three-terminal, low power,
high voltage regulators implemented in CMOS technol-
ogy. The series features extremely low quiescent cur-
rent which is typically 3.5mA . They allow input voltages
as high as 12V. The device provides large current with a
significantly small dropout voltage.
The HT73XX consists of a high-precision voltage refer-
ence, an error correction circuit, and a current limited
output driver. They are available with several fixed out-
put voltages ranging from 1.8V to 5.0V. CMOS technol-
ogy ensures low dropout voltage and low current
consumption. Although designed primarily as fixed volt-
age regulators, these devices can be used with external
components to generate variable voltages and currents.
Selection Table
Part No.
HT7318
HT7325
HT7327
HT7330
HT7333
HT7335
HT7350
Output Voltage
1.8V
2.5V
2.7V
3.0V
3.3V
3.5V
5.0V
Package
TO-92
SOT-89
Marking
73XX-A (for TO-92)
73XX-A (for SOT-89)
Note:
²XX² stands for output voltages.
For lead free devices, TO-92 package will add a ²#² mark at the end of the date code, whereas SOT-89
package will add a ²#² mark at the end of the marking.
Rev. 1.40
1 January 12, 2006
1 page  
www.DataSheet4U.com
HT73XX
HT7350, +5.0V Output Type
Ta=25°C
Symbol
Parameter
VOUT
IOUT(MAX)
DVOUT*
VDROP**
ISS
D V OUT
D V IN ´ V O U T
VIN
D V OUT
DTa
Output Voltage
Maximum Output Current
Load Regulation
Dropout Voltage
Quiescent Current
Line Regulation
Input Voltage
Temperature Coefficient
Test Conditions
VIN Conditions
6V IOUT=40mA
6V VOUT³4.5V
6V 1mA£IOUT£100mA
¾ IOUT=40mA
6V No load
¾
IOUT=40mA
6V£VIN£12V
¾¾
6V
IOUT=80mA
-40°C<Ta<85°C
Min. Typ. Max. Unit
4.85 5 5.15 V
250 ¾
¾ mA
¾ 45 90 mV
¾ 60 ¾ mV
¾ 3.5 7 mA
¾ 0.2 0.3 %/V
¾ ¾ 12 V
¾ ±0.7 ¾ mV/°C
Note:
²*² Regulation is measured at constant junction temperature, using pulsed ON time.
²**² Dropout is measured at constant junction temperature, using pulsed ON time, and the criterion is VOUT in-
side target value ±2%.
Application Circuits
V IN
V IN H T 7 3 X X V O U T
V OUT
S e r ie s
C1
10mF
GND
C2
10mF
C om m on
S in g le p o in t G N D
C om m on
Rev. 1.40
5 January 12, 2006
5 Page 
www.DataSheet4U.com
SOT-89 Carrier Tape Dimensions
D P0
E
F
P1
D1 P
A0
SOT-89
Symbol
W
P
E
F
D
D1
P0
P1
A0
B0
K0
t
C
Description
Carrier Tape Width
Cavity Pitch
Perforation Position
Cavity to Perforation (Width Direction)
Perforation Diameter
Cavity Hole Diameter
Perforation Pitch
Cavity to Perforation (Length Direction)
Cavity Length
Cavity Width
Cavity Depth
Carrier Tape Thickness
Cover Tape Width
HT73XX
t
W
C B0
K0
Dimensions in mm
12.0+0.3
-0.1
8.0±0.1
1.75±0.1
5.5±0.05
1.5+0.1
1.5+0.1
4.0±0.1
2.0±0.10
4.8±0.1
4.5±0.1
1.8±0.1
0.30±0.013
9.3
Rev. 1.40
11 January 12, 2006
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet HT7327.PDF ] | |
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