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參數(shù)資料
| 型號(hào)： | HT78XX |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 500mA TinyPowerTM LDO |
| 中文描述： | 500mA的LDO穩(wěn)壓器TinyPowerTM |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大?。?/td> | 121K |
| 代理商： | HT78XX |
HT78XX Series
500mA TinyPower
TM
LDO
Selection Table
Part No.
Output Voltage
Tolerance
Package
HT7818
1.8V
2%
SOT-89
TO-92
HT7825
2.5V
HT7827
2.7V
HT7830
3.0V
HT7833
3.3V
HT7850
5.0V
Block Diagram
Rev. 1.00
1
March 2, 2007
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.),
V
OUT
=5.0V at 500mA
Guaranteed output current: 500mA
Low quiescent current: 5 A (typ.)
Current limiting
Over-temperature shutdown
SOT-89, TO-92 Packages
Applications
Battery powered systems
Personal Digital Assistants
Peripheral cards
PCMCIA cards
Personal Communication Equipment
General Description
The HT78XX series of positive, linear regulators fea-
tures low quiescent current (5 A 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
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
Worst of operating conditions.
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