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PDF HT7827 Data sheet ( Hoja de datos )
| Número de pieza | HT7827 | |
| Descripción | 500mA TinyPowerTM LDO | |
| Fabricantes | Holtek Semiconductor | |
| Logotipo |  |
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HT78XX Series
500mA TinyPowerTM LDO
Features
· Output voltage ranges: Fixed range of 1.8V, 2.5V,
2.7V, 3.0V, 3.3V, 5.0V type.
· Highly accuracy: ±2%
· Low voltage drop: 360mV (typ.),
VOUT=5.0V at 500mA
· Guaranteed output current: 500mA
· Low quiescent current: 5mA (typ.)
· Current limiting
· Over-temperature shutdown
· SOT-89, TO-92 Packages
Applications
· Battery powered systems
· Personal Digital Assistants
· Peripheral cards
www.DataSheet4U.com
General Description
The HT78XX series of positive, linear regulators fea-
tures low quiescent current (5mA typ.) with low dropout
voltage, making them ideal for battery applications. The
devices are capable of supplying 500mA of output cur-
rent continuously.
They are available with several fixed output voltages
ranging from 1.8V to 5.0V. Although designed primarily
· PCMCIA cards
· Personal Communication Equipment
as fixed voltage regulators, these devices can be used
with external components to obtain variable voltages
and currents.
These rugged devices have Thermal Shutdown and
Current Limiting to prevent device failure under the
²Worst² of operating conditions.
Selection Table
Part No.
HT7818
HT7825
HT7827
HT7830
HT7833
HT7850
Block Diagram
Rev. 1.00
Output Voltage
1.8V
2.5V
2.7V
3.0V
3.3V
5.0V
Tolerance
±2%
V IN
O v e rc u rre n t
S h u td o w n
T h e rm a l
S h u td o w n
VO UT
R1
AM P
V re f
R2
GND
1
Package
SOT-89
TO-92
March 2, 2007
1 page  
Package Information
3-Pin SOT-89 Outline Dimensions
A
B
HT78XX Series
I
J
E
www.DataSheet4U.com
G
F
H
Symbol
A
B
C
D
E
F
G
H
I
J
Min.
173
64
90
35
155
14
17
¾
55
14
C
D
Dimensions in mil
Nom.
¾
¾
¾
¾
¾
¾
¾
59
¾
¾
Max.
181
72
102
47
167
19
22
¾
63
17
Rev. 1.00
5 March 2, 2007
5 Page 
HT78XX Series
Holtek Semiconductor Inc. (Headquarters)
No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan
Tel: 886-3-563-1999
www.DataSheet4U.cFoamx: 886-3-563-1189
http://www.holtek.com.tw
Holtek Semiconductor Inc. (Taipei Sales Office)
4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan
Tel: 886-2-2655-7070
Fax: 886-2-2655-7373
Fax: 886-2-2655-7383 (International sales hotline)
Holtek Semiconductor Inc. (Shanghai Sales Office)
7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China 200233
Tel: 86-21-6485-5560
Fax: 86-21-6485-0313
http://www.holtek.com.cn
Holtek Semiconductor Inc. (Shenzhen Sales Office)
5/F, Unit A, Productivity Building, Cross of Science M 3rd Road and Gaoxin M 2nd Road, Science Park, Nanshan District,
Shenzhen, China 518057
Tel: 86-755-8616-9908, 86-755-8616-9308
Fax: 86-755-8616-9722
Holtek Semiconductor Inc. (Beijing Sales Office)
Suite 1721, Jinyu Tower, A129 West Xuan Wu Men Street, Xicheng District, Beijing, China 100031
Tel: 86-10-6641-0030, 86-10-6641-7751, 86-10-6641-7752
Fax: 86-10-6641-0125
Holtek Semiconductor Inc. (Chengdu Sales Office)
709, Building 3, Champagne Plaza, No.97 Dongda Street, Chengdu, Sichuan, China 610016
Tel: 86-28-6653-6590
Fax: 86-28-6653-6591
Holtek Semiconductor (USA), Inc. (North America Sales Office)
46729 Fremont Blvd., Fremont, CA 94538
Tel: 1-510-252-9880
Fax: 1-510-252-9885
http://www.holtek.com
Copyright Ó 2007 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek as-
sumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used
solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable
without further modification, nor recommends the use of its products for application that may present a risk to human life
due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices
or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information,
please visit our web site at http://www.holtek.com.tw.
Rev. 1.00
11 March 2, 2007
11 Page | ||
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| PDF Descargar | [ Datasheet HT7827.PDF ] | |
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