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Sipex Corporation

AS2811 Datasheet Preview

AS2811 Datasheet

10A Low Dropout Voltage Regulator

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FEATURES
Adjustable Output Down To 1.2V
Output Current Of 10A
Low Dropout Voltage 1.1V Typ
Extremely Tight Load And Line Regulation
Current & Thermal Limiting
Standard 3-Terminal Low Cost TO-220
Similar To Industry Standard LT1584
AS2811
10A Low Dropout Voltage Regulator
Fast Response, Adjustable & Fixed
Proposed Specification
APPLICATIONS
Powering Intel Pentium µP from +5V Supplies
Power PCSupplies
SMPS Post-Regulator
High Efficiency “Green” Computer Systems
High Efficiency Linear Power Supplies
Portable Instrumentation
Constant Current Regulators
Adjustable Power Supplies
Battery Charger
PRODUCT DESCRIPTION
The AS2811 is a low power 10A adjustable and fixed voltage regulator that is very easy to use. It requires only two external resistors
to set the output voltage for the adjustable version. The AS2811 is designed for low voltage applications that offer lower dropout
voltage and faster transient response. This device is an excellent choice for use in powering low voltage Microprocessor that require a
lower dropout, faster transient response to regulate from +2.5V to 3.8V supplies and as a post regulator for switching supplies
applications. The AS2811 features low dropout of a maximum 1.2 volts.
The AS2811 offers full protection against over-current faults, reversed input polarity, reversed load insertion, and positive and
negative transient voltage. On-Chip trimming adjusts the reference voltage to 1%. The IQ of this device flows into the load which
increases efficiency.
The AS2811 is offered in a 3-Pin TO-220 and TO-263 package type, compatible with older 3 terminal regulators. For a 8A low
dropout regulator refer to the AS2880 datasheet.
ORDERING INFORMATION
TO-220
3-PIN
AS2811AU
AS2811AU-3.3
TO-263
3-PIN
AS2811AT
AS2811AT-3.3
Consult with factory for other fixed output voltages.
PIN CONNECTIONS
TO-263-3 (T)
TO-220-3 (U)
AS2811
1 23
AS2811
123
ADJ/GND VOUT VIN
Top View
ADJ/GND VOUT VIN
Front View
Rev. 10/2/00




Sipex Corporation

AS2811 Datasheet Preview

AS2811 Datasheet

10A Low Dropout Voltage Regulator

No Preview Available !

www.DataSheet4U.com
ABSOLUTE MAXIMUM RATINGS
Lead Temp. (Soldering, 10 Seconds) .............................. 300°C
Storage Temperature Range ............................ -65° to +150°C
Operating Junction Temperature Range
AS2811 Control Section ............................0C° to +125°C
AS2811 Power Transistor..........................0C° to +150°C
AS2811
Operating Input Voltage ................................... 7V
ELECTRICAL CHARACTERISTICS (NOTE 1) at IOUT = 10mA, Ta=25°C, unless otherwise specified.
Parameter
Conditions
AS2811
Min Typ
Max
3.3V Version
Output Voltage
AS2811-3.3V, 0IOUT 1.5A, 4.75VVIN7V
3.270 3.3 3.330
3.240
3.360
Reference Voltage
AS2811-1.5V(VIN -VOUT)3V, 10mAIOUT7A
1.238
1.225
1.250
1.262
1.275
Output Voltage
AS2811-3.3, 0 IOUT5A, 4.75VVIN 7V Note 4
3.270
3.235
3.300
3.330
3.365
Min. Load Current
Line Regulation
1.5V(VIN -VOUT)5.75V
AS2811-2.75VVIN 7V, IOUT=10mA, TJ=25°C
5
0.005
0.005
10
0.2
0.2
AS2811-3.3, 4.75VVIN 7V, IOUT=0mA, TJ=25°C
0.005
0.005
0.2
0.2
Load Regulation
AS2811,10IOUT IFLA, (VIN-VOUT)=3V, TJ=25°C
0.05
0.005
0.3
0.5
AS2811-3.3,0IOUT IFLA, VIN=5V, TJ=25°C
0.05
0.005
0.3
0.5
Dropout Voltage
IOUT=IFULLLOAD , VREF=1%
1.1 1.2
Current Limit
AS2811, VIN=7V
11.0 12.0
Long Term Stability
Thermal Regulation
TA=125°C, 1000Hrs.
AS2811, 30ms pulse
0.3
0.004
1
0.020
Temperature Stability
0.5
Output Noise, RMS
10Hz to 10kHz
Thermal Resistance
Junction-to-Case
TO-220
TO-263
Control Section
Power Transistor
Control Section
Power Transistor
The Bold specifications apply to the full operating temperature range.
Note 1: Changes in output voltage due to heating effects are covered under the specification for thermal regulation.
Note 2: A 10µF output capacitor is required on AS2811.
0.003
0.65
2.7
0.65
2.7
Units
V
V
V
mA
%
%
V
A
%
%/W
%
% VO
°C/W
Rev. 10/2/00


Part Number AS2811
Description 10A Low Dropout Voltage Regulator
Maker Sipex Corporation
Total Page 4 Pages
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