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參數(shù)資料
| 型號： | A8229SLH |
| 英文描述： | LOW-DROPOUT REGULATORS - HIGH EFFICIENCY |
| 中文描述： | 低壓差穩(wěn)壓器-高效 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 137K |
| 代理商： | A8229SLH |
DSCONTNUEDPRODUCT
APPLICATIONS
I
Cordless and Cellular Telephones
I
Personal Data Assistants
I
Personal Communicators
I
Palmtop Computers
voltage, duty cycle, and ambient temperature.
Under any set of conditions, do not exceed a
junction temperature of +150
°
C. See follow-
ing pages.
—FORREFERENCEONLY
T
S
. . . . . . . . . . . .
-40
°
C to +150
°
C
* Output current rating is limited by input
Designed specifically to meet the requirement for extended opera-
tion of battery-powered equipment such as cordless and cellular tele-
phones, the A8220SLH thru A8233SLH voltage regulators offer the
reduced dropout voltage and quiescent current essential for maximum
battery life. Applicable also to palmtop computers and personal data
(transient), which is limited only by package power dissipation. Regu-
lated output voltages of 2.6, 2.7, 2.8, 2.9, 3.0 and 3.3 are currently
provided. Other voltages, down to 2.0 volts, are available on special
order.
A PMOS pass element provides a typical dropout voltage of only
125 mV at 50 mA of load current. The low dropout voltage permits
deeper battery discharge before output regulation is lost. Quiescent
current does not increase significantly as the dropout voltage is ap-
proached, an ideal feature in standby/resume power systems where data
integrity is crucial. Regulator accuracy and excellent temperature
characteristics are provided by a bandgap reference. The A8220SLH
thru A8233SLH include ENABLE inputs to give the designer complete
control over power up, standby, or power down.
These devices are supplied in a thermally enhanced 5-lead small-
outline plastic package similar to the SOT-23, and fitting the SC-74A
footprint. All devices are rated for operation over a temperature range
of -20
°
C to +85
°
C.
FEATURES AND BENEFITS
I
High Efficiency Provides Extended Battery Life
I
125 mV Typical Dropout Voltage at I
O
= 50 mA
I
32
μ
A Typical Quiescent Current
Less Than 1
μ
A “Sleep” Current
I
Low Output Noise
I
100 mA Peak Output Current
I
Improved PSRR and Transient Performance
LOW-DROPOUT REGULATORS
— HIGH EFFICIENCY
D
2
8220
THRU
8233
PRELIMINARY INFORMATION
(subject to change without notice)
January 18, 2000
A82xxSLH
Dwg. PS-021-4
VR
2
G
3
1
E
5
I
4
Always order by complete part number, e.g.,
A82xxSLH
, where “xx” is
the required output voltage in tenths.
ABSOLUTE MAXIMUM RATINGS
Input Voltage, V
I
. . . . . . . . . . . . . . .
7 V
Peak Output Current,
I
OM
. . . . . . . . . . . . . . . . . .
100 mA*
Enable Input Voltage, V
E
. . . . . . . . . .
V
I
Operating Temperature Range,
T
A
. . . . . . . . . . . . .
-20
°
C to +85
°
C
Junction Temperature, T
J
. . . .
+150
°
C
Storage Temperature Range,
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| A8229SLM | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:LOW-DROPOUT REGULATORS . HIGH EFFICIENCY |
| A822ERW | 制造商:MPD 制造商全稱:MicroPower Direct, LLC 功能描述:Low Cost, 8W DIP Wide Input Range DC/DC Converters |
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