DatasheetsPDF.com

APW7004

Anpec Electronics Coropration
Part Number APW7004
Manufacturer Anpec Electronics Coropration
Description Synchronous-Rectifier PWM Controller
Published Sep 28, 2005
Detailed Description APW7004 Synchronous-Rectifier PWM Controller for PentiumTM II Microprocessor Features • • • Simple Single-Loop Control ...
Datasheet PDF File APW7004 PDF File

APW7004
APW7004


Overview
APW7004 Synchronous-Rectifier PWM Controller for PentiumTM II Microprocessor Features • • • Simple Single-Loop Control Design-VoltageMode PWM Control Fast Transient Response • High-Bandwidth Error Amplifier 5-Bit Digital-to-Analog Output Voltage Selection • Wide Range from1.
3VDC to 3.
5VDC • 0.
1V Binary Steps from 2.
1VDC to 3.
5VDC .
05V Binary Steps from 1.
3VDC to 2.
05 VDC 6´ 86TM is a trademark of Cyrix Corporation AlphaTM 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 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.
1VDC to 3.
5VDC in 0.
1 increments and from 1.
3 VDC to 2.
05 VDC 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 RDS(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 t...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)