AS3815M5 Sipex Corporation, AS3815M5 Datasheet

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AS3815M5

Manufacturer Part Number
AS3815M5
Description
150 mA, Low-Noise LDO Voltage Regulator
Manufacturer
Sipex Corporation
Datasheet

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FEATURES
PRODUCT DESCRIPTION
The AS3815 is an excellent choice for use in battery-powered applications, and where power conservation is desired. Such as:
cellular/ cordless telephones, radio control systems, and portable computers.
This device is a positive voltage regulator with very low dropout voltage and low output noise. It uses very little quiescent current of
750 µA at 100 mA output load. V
voltages, as listed below, or an adjustable version are available in a small 5-pin SOT-23 package.
Other key features include: Zero off-mode current, protection against reversed battery, thermal and current limiting.
ORDERING INFORMATION
X = Output Voltage, X = 1.8 for 1.8V, 3.3 for 3.3V etc.
For other fixed voltages consult factory.
MARKING INFORMATION
Part Number
AS3815M5-X
Voltage
Low Noise Output LDO
1% Initial Accuracy At 150mA
Very Low Quiescent Current
Low Dropout Voltage (210mV At 150mA)
Current & Thermal Limiting
Reverse-Battery Protection
Wide Range of Fix Output Voltages
Zero Off-Mode Current
Small 5-Pin SOT-23
Pin Compatible to MIC5205/MAX8877 (Fixed Option Only)
2.85
1.8
2.5
2.8
3.0
3.3
1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 4.5V, & 5.0V
Marking
R1XX
R2XX
R3XX
R4XX
R5XX
R6XX
Temperature Range
Blank for Adjustable
Operating Junction
-40°C to +125°C
Voltage
4.70
4.75
ADJ
3.6
4.5
5.0
OUT
tolerance is less than 1% with a compensated temperature coefficient. Many fixed output
Accuracy
Marking
RAXX
RBXX
RCXX
R7XX
R8XX
R9XX
1%
150 mA, Low-Noise LDO Voltage Regulator
Package Type
SOT-23-5
Fixed Output Voltage
APPLICATIONS
AS3815M5-X
V
V
OUT
Top View
5
1
IN
AS3815
Portable Instrumentation
PDA
Battery Powered Systems
Cellular Phone
Cordless Telephones
Radio Control Systems
Portable/Palm Top/Notebook Computers
Portable Consumer Equipment
Bar Code Scanners
SMPS Post-Regulator
PIN CONNECTIONS
GND
2
BYP
EN
4
3
(Preliminary Information)
Adjustable Output Voltage
V
AS3815M5-ADJ
OUT
V
5
Top View
1
AS3815
IN
GND
2
AS3815
ADJ/BYP
EN
4
3
Rev. 10/6/00

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AS3815M5 Summary of contents

Page 1

... Portable Instrumentation • Bar Code Scanners • SMPS Post-Regulator PIN CONNECTIONS Top View Top View V V BYP OUT OUT AS3815 AS3815 GND EN GND IN IN AS3815M5-X AS3815M5-ADJ Fixed Output Voltage Adjustable Output Voltage AS3815 ADJ/BYP Rev. 10/6/00 ...

Page 2

ABSOLUTE MAXIMUM RATINGS Thermal Shutdown .................................... Internally Limited Lead Temp. (Soldering, 5 Seconds) ............................ 260°C Operating Junction Temperature Range ..... -40°C to +125°C Input Supply Voltage........................................-20V to +20V Enable Input Voltage........................................-20V to +20V ELECTRICAL CHARACTERISTICS T = 25° ...

Page 3

TYPICAL APPLICATION GND AS3815 3 EN may be tied directly to V ENABLE AS3815 5 V OUT + 1.0uF 4 BYP (Optn) IN Rev. 10/6/00 ...

Page 4

Application Hints The AS3815 requires an output capacitor for device stability. The value required varies greatly depending upon the application circuit. The high frequency characteristics of electrolytic capacitors depend greatly on the type and also on the manufacturer. Sometimes bench ...

Page 5

PACKAGE DRAWING SOT-23-5L (M5 MILLIMETERS MIN 0.80 REF B 0.30 C 0.10 D 2.70 E 1.40 e 0.95 BSC. e1 1.70 2. MIN 0 PLACES ...

Page 6

Ground Current Vs. Load Current 1.40 1.20 1.00 0.80 0.60 0.40 3.3V Device 0.20 0. 100 IL (mA) Ground Current Vs. Load Current (in Dropout) 2.00 1.50 1.00 0.50 0. 100 IL (mA) Dropout Voltage Vs. ...

Page 7

Ground Current Vs. Temperature 90.0 80.0 70.0 60.0 50.0 -40 - Temperature (Degree C) Ground Current in Dropout Vs. Temperature 2.30 2.20 2.10 2.00 1.90 1.80 1.70 1.60 1.50 1.40 -40 - ...

Page 8

AS3815 Rev. 10/6/00 ...

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