FAN5019MTC Fairchild Semiconductor, FAN5019MTC Datasheet

FAN5019MTC

Manufacturer Part Number

FAN5019MTC

Description

DC/DC Switching Controllers PWM 4 phases contrlr

Manufacturer

Fairchild Semiconductor

Datasheets

1.FAN5019MTC.pdf (30 pages)

2.FAN5019MTC.pdf (30 pages)

Specifications of FAN5019MTC

Number Of Outputs

Input Voltage

10.2 V to 13.8 V

Mounting Style

SMD/SMT

Package / Case

TSSOP-28

Maximum Operating Temperature

+ 85 C

Minimum Operating Temperature

0 C

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

FAN5019MTCX

Manufacturer:

FAIRCHILD

Quantity:

15 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

FAN5019MTCX

Manufacturer:

FAIRCHILD/仙童

Quantity:

20 000

Company:

H&T Electronics

Part Number:

FAN5019MTCX

Quantity:

2 500

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

FAN5019MTCX-NL

Manufacturer:

FAIRCHILD

Quantity:

900

Company:

Meier Automation Equipment Co., Limited

Part Number:

FAN5019MTCX-NL

Manufacturer:

FAIRCHILD/仙童

Quantity:

20 000

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Features

• Pin and Function Backward Compatible with FAN53168

• Precision Multi-Phase DC-DC Core Voltage Regulation

• Differential Remote Voltage Sensing

• Selectable 2, 3, or 4 Phase Operation

• Selectable VRM9 or VRM10 Operation

• Up to 1MHz per Phase Operation (4MHz ripple

• Lossless Inductor Current Sensing for Loadline

• Accurate Load-Line Programming (Meets Intel

• Accurate Channel-Current Balancing for Thermal

• Convenient 12V Supply Biasing

• 6-bit Voltage Identiﬁcation (VID) Input

• Adjustable Over Current Protection with Programmable

• Over-Voltage Protection – Internal OVP Crowbar

Applications

• Computer DC/DC Converter VRM/VRD10.0

• Computer DC/DC Converter VRM/VRD10.X

• Computer DC/DC Converter VRM/VRD9.X

• High Current, Low Voltage DC/DC Rail

Block Diagram

FAN5019

6-Bit VID Controller 2-4 Phase VRM10.X Controller

and FAN53180 Controllers

– ±10mV Output Voltage Accuracy Over Temperature

Frequency)

Compensation

– External Temperature Compensation

VRM/VRD10.0 and 10.X CPU Speciﬁcations)

Optimization and Layout Compensation

– .8375V to 1.600V in 12.5mV Steps

– Dynamic VID Capability with Fault-Blanking for

Latch-Off Delay. Latch-Off Function may be Disabled

Protection

glitch-less Output voltage Changes

FAN5019

FAN5009

General Description

The FAN5019 is a multi-phase DC-DC controller for imple-

menting high-current, low-voltage, CPU core power regula-

tion circuits. It is part of a chipset that includes external

MOSFET drivers and power MOSFETS. The FAN5019

drives up to four synchronous-rectiﬁed buck channels in par-

allel. The multi-phase buck converter architecture uses inter-

leaved switching to multiply ripple frequency by the number

of phases and reduce input and output ripple currents. Lower

ripple results in fewer components, lower component cost,

reduced power dissipation, and smaller board area.

The FAN5019 features a high bandwidth control loop to

provide optimal response to load transients. The FAN5019

senses current using lossless techniques: Phase current is

measured through each of the output inductors. This current

information is summed, averaged and used to set the loadline

of the output via programmable "droop". The droop is tem-

perature compensated to achieve precise loadline character-

istics over the entire operating range. Additionally,

individual phase current is measured using the R

the low-side MOSFETs. This information is used to dynam-

ically balance/steer per-phase current. The phase currents

are also summed and averaged for over-current detection.

Dynamic-VID technology allows on-the-ﬂy VID changes

with controlled, glitch-less output. Additionally, short-circuit

protection, adjustable current limiting, over-voltage protec-

tion and power-good circuitry combine to ensure reliable and

safe operation. The operating temperature range is 0°C to

+85°C and the operating voltage is a single +12V supply,

which simpliﬁes the design. The FAN5019 is available in a

TSSOP-28 package.

OUT

www.fairchildsemi.com

REV. 1.0.7 1/5/04

DS(ON)

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