AME51071IHAADJZ AME [Analog Microelectronics], AME51071IHAADJZ Datasheet

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AME51071IHAADJZ

Manufacturer Part Number
AME51071IHAADJZ
Description
PWM Control 3A Buck Converter
Manufacturer
AME [Analog Microelectronics]
Datasheet
excellent transient characteristics. The PWM control cir-
cuit is able to vary the duty ratio linearly from 0 up to
100%. This converter also contains an error amplifier cir-
cuit as well as a soft-start circuit that prevents overshoot
at startup. An enable function, an over current protect func-
tion and a short circuit protect function are built inside,
and when OCP or SCP happens, the operation frequency
will be reduced from 350KHz to 30KHz. Also, an internal
compensation block is built in to minimum external com-
ponent count.
a coil, capacitors, and a diode connected externally, these
ICs can function as step-down switching regulators. They
serve as ideal power supply units for portable devices when
coupled with the SOP-8L mini-package, providing such
outstanding features as low current consumption. Since
this converter can accommodate an input voltage up to
18V, it is also suitable for the operation via an AC adapter.
n Features
AME5107
Rev.A.01
n General Description
AME5107provides low-ripple power, high efficiency, and
With the addition of an internal P-channel Power MOS,
l Input voltage: 3.6V to 18V.
l Output voltage: 0.8V to VCC.
l Duty ratio: 0% to 100% PWM control
l Oscillation frequency: 350KHz typ.
l Soft-start, Current limit, Enable function
l Thermal Shutdown function
l Built-in internal SW P-channel MOS
l SOP-8 Package
l All AME’ s Lead Free Products Meet RoHS
Standards
AME, Inc.
C
n Applications
l PC Motherboard
l LCD Monitor
l Graphic Card
l DVD-Video Player
l Telecom Equipment
l ADSL Modem
l Printer and other Peripheral Equipment
l Microprocessor core supply
l Networking power supply
PWM Control 3A Buck
S
Converter
1

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AME51071IHAADJZ Summary of contents

Page 1

AME, Inc. AME5107 n General Description AME5107provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control cir- cuit is able to vary the duty ratio linearly from 100%. This converter also contains an error amplifier ...

Page 2

AME, Inc. AME5107 n Typical Application V OUT L1 Value n Function Block Diagram IN 2 Note (1+R OUT FB R =0.7K =12V,I =3A IN MAX 2.5V 22uH SW Oscillation Circuit PWM-Switched Control ...

Page 3

AME, Inc. AME5107 n Pin Configuration SOP-8 Top View AME5107 Pin Description Pin Number Pin Name OCSET 4 IN 5,6 SW 7,8 GND Rev.A.01 AME5107 1. ...

Page 4

AME, Inc. AME5107 n Ordering Information AME5107 xxx x Pin Operating Ambient Configuration Temperature Range - (SOP-8) 3. OCSET GND 8. GND ...

Page 5

AME, Inc. AME5107 n Absolute Maximum Ratings Parameter Input Supply Voltage EN,SW Pin Voltages FB Pin Voltage ESD Classification Caution: Stree above the listed absolute maximum rating may cause permanent damage to the device. *HBM B: 2000~3999V n Recommended Operating ...

Page 6

AME, Inc. AME5107 n Electrical Specifications 12V C,Unless otherwise specified Parameter Input Voltage Feedback Voltage FB Pin Bias Current Switch Current Current Consumption During Power Off Output Voltage Line Regulation Output Voltage ...

Page 7

AME, Inc. AME5107 n Detailed Description PWM Control The AME5107 consists of DC/DC converters that employ a pulse-width modulation (PWM) system. In converters of the AME5107, the pulse width varies in a range from 0 to 100%, according to the ...

Page 8

AME, Inc. AME5107 n Characterization Curve(For reference only) Vin vs. FB 0.84 0.83 0.82 0.81 0.80 0.79 0.78 0.77 0.76 0.75 0. (V) IN Load Regulation 5.1 5.0 4.9 4.8 4.7 4.6 4.5 ...

Page 9

AME, Inc. AME5107 n Characterization Curve(For reference only) Vout Ripple OUT Soft start time V =12V IN V OUT V = =3A LOAD Rev.A.01 Frequency of short current protect 5V/div ...

Page 10

AME, Inc. AME5107 n Tape and Reel Dimension SOP-8 PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package SOP Carrier Width (W) Pitch (P) 12.0±0.1 mm 4.0±0.1 mm PWM Control 3A Buck Converter W ...

Page 11

AME, Inc. AME5107 n Package Dimension SOP-8 Top View H D Front View o 7 (4X Rev.A.01 Side View C SYMBOLS E L θ C PWM Control 3A Buck Converter MILLIMETERS MIN MAX MIN A 1.35 1.75 0.05315 ...

Page 12

These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president AME, Inc. reserves the right to make changes in the circuitry and specifications of ...

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