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APW6021KC-TR, APW7004, APW7016

Table of contents:
Info of APW6021KC-TR
Info of APW7004
Info of APW7016

APW6021KC-TR, APW7004, APW7016 Selling Leads, Datasheet

MFG:ANPEC Package Cooled:SOP D/C:08+09+

APW6021KC-TR, APW7004, APW7016 Datasheet download

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Part Number: APW6021KC-TR

MFG: ANPEC

Package Cooled: SOP

D/C: 08+09+

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APW7004 General Description

The APW7004 provides a complete control and multiple protection for a DC-DC converter optimized for high performance microprocessor applications. It is designed to drive two N-Channel MOSFETs in a synchronous- rectified buck topology. The APW7004 integrates output voltage control, output voltage programming, monitoring and protection functions into a single chip IC.
The APW7004 includes a 5-bit digital-to-analog converter (DAC) that provides a easily adjustable and precisely output voltage from 2.1V_DC to 3.5V_DC in 0.1 increments and from 1.3 V_DC to 2.05 V_DC in 0.05V increments. Any selected output voltage can be maintained within ±1% accuracy over temperature and line voltage variations.
With a 200kHz free-running triangle-wave oscillator and a error amplifier featuring a 15MHz unity-gain bandwidth and 6V/us slew rate inside the chip, APW7004 can implement a simple, single feedback loop, voltage-mode control topology with high transient performance.
The APW7004 also features with multiple protections against over-current and over-voltage conditions by inhibiting PWM operation. The APW7004 uses the R_DS(ON) of the upper MOSFET as the current sensing element which eliminates the demend for an extra component. The APW7004 also monitors the output voltage using a comparator with hysteresis that tracks the DAC output and issues a Power Good signal once the output is within ±10%.

APW7004 Maximum Ratings

Symbol	Parameter	Rating	Unit
V_cc	Supply Voltage	15	V
V_BOOT V_PHASE	Boot Voltage	15	V
V_I, V_O	Input , Output or I/O Voltage	GND - 0.3 V to V_CC + 0.3	V
T_A	Operating Ambient Temperature Range	0 to 70	°C
T_J	Junction Temperature Range	0 to 125	°C
T_STG	Storage Temperature Range	-65 to +150	°C
T_S	Soldering Temperature	300 ,10 seconds	°C

APW7004 Features

• Simple Single-Loop Control Design-Voltage- Mode PWM Control
• Fast Transient Response
• High-Bandwidth Error Amplifier
• 5-Bit Digital-to-Analog Output Voltage Selection
• Wide Range from1.3V_DC to 3.5V_DC
• 0.1V Binary Steps from 2.1V_DC to 3.5V_DC.05V Binary Steps from 1.3V_DC to 2.05 V_DC
• VID0-4 Input Pins with Pull High Resistors Built in
• Power-Good Output Voltage Monitor, PGOOD Pin with an Open Collector Configuration
• Over-Voltage and Over-Current Fault Monitors
• Uses MOSFET's R_DS(ON) as Current Sensing, No Extra Element Required
• Programmable Switching Frequency Setting
• 200kHz Free-Running Oscillator

APW7004 Typical Application

• Power Supply for Pentium ^TM, Pentium Pro^TM, Pentium TM II,PowerPC ^TM, K6 ^TM , 6´86^TMand AlphaTM Microprocessors
• High-Power 5V to 3.xV (or below) DC-DC Regulators
• Low-Voltage Distributed Power Supplies 6´ 86^TMis a trademark of Cyrix Corporation Alpha^TM is a trademark of Digital Equipment Corporation K6 ^TM is a trademark of Advanced Micro Devices, Inc. Pentium ^TM is a trademark of Intel Corporation PowerPC ^TM is a trademark of IBM

APW7004 Connection Diagram

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