rt9229 ETC-unknow, rt9229 Datasheet

rt9229

Manufacturer Part Number

rt9229

Description

Advaced Dual Dual Linear Power Controller

Manufacturer

ETC-unknow

Datasheet

1.RT9229.pdf (10 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

rt9229CS

Manufacturer:

RICHTEK/立锜

Quantity:

20 000

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Download datasheet (214Kb)

General Description

The RT9229 is a 4-in-one power controller optimized

for high-performance microprocessor and computer

applications. The IC integrates two PWM controllers,

a linear regulator and a linear controller as well as

monitoring and protection functions into a 28-pin

SOP package. The first PWM controller regulates the

microprocessor core voltage with a synchronous

buck converter, while the second PWM controller

supplies the 3.3V power with a standard buck

converter. The linear regulator provides power for the

clock driver circuit and the linear controller regulates

power for the GTL bus.

The RT9229 features an Intel-compatible, TTL 5-bit

programmable DAC that adjusts the core voltage

from 2.1V to 3.5V in 0.1V increments and from 1.3V

to 2.05V in 0.05V steps. The second PWM controller

is user-adjustable for output level between 3.0V and

3.5V with ±2.5% accuracy. The 5-bit DAC has a

typical ±1% tolerance. The linear regulator uses an

internal drive device to provide 2.5V ±2.5% output

voltage. The linear controller drives an external N-

channel MOSFET or a low cost NPN bipolar

transistor to provide 1.5V ±2.5%.

The RT9229 monitors all the output voltages. A

Power-good signal is issued when the core voltage is

within ±10% of the DAC setting and the other levels

are above their under-voltage levels. Additional build-

in over-voltage protection for the core output uses the

lower MOSFET to prevent output voltage above

115% of the DAC setting. The PWM over-current

function monitors the output current using the voltage

drop across the upper MOSFET’s R

eliminates the need for a current sensing resistor.

Ordering Information

RT9229

DS9229-03 July 2001

Advanced Dual PWM and Dual Linear Power Controller

Operating temperature range

C: Commercial standard

Package type

S : SOP-28

DS(ON)

which

Features

Switching section

Linear Section

Applications

Pin Configurations

Part Number

RT9229CS

(Plastic SOP-28)

Full Motherboard Power Regulation for Computer

Low-voltage Distributed Power Supplies

4-in-one Regulated Voltages for Microprocessor

Core, I/O, Clock, and GTL

Compatible with HIP6019B

Power-Good Output Voltage Monitor

5-bit DAC Programmable from 1.3V to 3.5V

± ± ± ± 1% DAC Accuracy

Fast Transient Response

Full 0% to 100% Duty Cycle Driver

Fixed 200kHz Switching Frequency

Adaptive Non-overlapping Gate Driver

Over-current Monitor Uses MOSFET R

Over-voltage Protection Uses Lower MOSFET

User-adjustable Linear Regulator Output Voltage

MOSFET or NPN Driving Capability

Ultra Fast Response Speed

Under-voltage Protection

Internal Thermal Shutdown

OCSET2

UGATE2

PHASE2

PGOOD

FAULT

VID4

VID3

VID2

VID1

VID0

NC2

FB2

FB4

Pin Configurations

TOP VIEW

www.richtek-ic.com.tw

RT9229

DS(ON)

VCC

UGATE1

PHASE1

LGATE1

PGND

OCSET1

VSEN1

FB1

NC1

GND

VOUT4

VSEN2

FB3

GATE3

Related parts for rt9229

rt9229 Summary of contents

Page 1

... Advanced Dual PWM and Dual Linear Power Controller General Description The RT9229 is a 4-in-one power controller optimized for high-performance microprocessor and computer applications. The IC integrates two PWM controllers, a linear regulator and a linear controller as well as monitoring and protection functions into a 28-pin SOP package. The first PWM controller regulates the ...

Page 2

... RT9229 Absolute Maximum Ratings Supply Voltage PGOOD, FAULT and GATE Voltage Input, Output or I/O Voltage Ambient Temperature Range Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10 sec.) Package Thermal Resistance SOP-28, θ JA Recommended Operating Conditions Supply Voltage Ambient Temperature Range Junction Temperature Range CAUTION: Stresses beyond the ratings specified in “ ...

Page 3

... VCC = 12V, V LGATE1 LGATE1 LGATE1 LGATE1 VSEN1 Rising VSEN2 Rising FAULT 4.5V OCSET OCSET VSEN1 Rising VSEN1 Rising Upper/Lower Threshold -4mA PGOOD PGOOD RT9229 Min Typ Max 180 200 225 -- 1.9 -- -2 100 -- 180 230 -- -- 700 -- -2 ...

Page 4

... RT9229 Function Block Diagram FB3 _ GATE3 VSEN2 1.26V _ VOUT2 0.25V _ FB4 VCC UGATE2 PHASE2 GATE PWM2 CONTROL PWM COMPEN- COMP2 SATION FB2 1.26V _ VSEN2 2.5V _ 4.3V www.richtek-ic.com.tw 4 OCSET2 LINEAR UNDER 0.3V VOLTAGE LUV 110% _ 90% _ 200µA 115% OC4 OC OC2 0V SOFT-START _ & FAULT ...

Page 5

... These pins are connected to the PWM converters’ output voltage. The PGOOD and OVP comparator circuits use these signals to report output voltage status and for over-voltage protection. VSEN2 provides the input power to the integrated linear regulator internal 200µA RT9229 >1V 12V) in the event www.richtek-ic.com.tw 5 ...

Page 6

... RT9229 VOUT4 (Pin 16) Output of the linear regulator. Supplies current up to 230mA. GATE3 (Pin 18) Connect this pin to the gate of an external MOSFET or the base of a NPN. This pin provides the drive for the linear controller’s pass transistor. FB3 (Pin 19) Connect this pin to a resistor divider to set the linear controller output voltage ...

Page 7

... RT9229 Normal OUT1 Voltage DACOUT 1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70 1.75 1.80 1.85 1.90 1.95 2.00 2.05 INHIBIT 2.10 2.20 2.30 2.40 2.50 2.60 2.70 2.80 2.90 3.00 3.10 3.30 3.30 3.40 3.50 www.richtek-ic.com.tw 7 ...

Page 8

... R12 10 + C5-6 2x1µ 1µF 1000pF VCC OCSET1 OCSET1 OCSET2 1.21k 1 PGOOD UGATE2 27 2 UGATE1 PHASE2 26 PHASE1 D1 RT9229 MBR2535CTL 25 15 VSEN2 LGATE1 24 PGND R5 10 FB2 22 3.32K VSEN1 R6 21 FB1 5.11K 18 VID0 GATE3 6 VID1 19 FB3 VID2 R9 VID3 1K 16 VID4 ...

Page 9

... Dimensions In Millimeters Min Max 17.704 18.110 7.391 7.595 2.362 2.642 0.330 0.508 1.194 1.346 0.229 0.330 0.102 0.305 10.008 10.643 0.381 1.270 RT9229 Dimensions In Inches Min Max 0.697 0.713 0.291 0.299 0.093 0.104 0.013 0.020 0.047 0.053 0.009 0.013 0.004 ...

Page 10

... RT9229 RICHTEK TECHNOLOGY CORP. Headquarter 6F, No. 35, Hsintai Road, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5510047 Fax: (8863)5537749 www.richtek-ic.com.tw 10 RICHTEK TECHNOLOGY CORP. Taipei Office (Marketing) 8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek-ic.com.tw ...

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