RT9223 ETC-unknow, RT9223 Datasheet

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RT9223

Manufacturer Part Number
RT9223
Description
Manufacturer
ETC-unknow
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
RT9223
Manufacturer:
TI
Quantity:
114
Company:
Part Number:
RT9223CS
Quantity:
1 231
General Description
The RT9223 is a high efficiency synchronous
switching regulator for modern CPU application. The
output is controlled by a 5-bit DAC programmed from
1.3V to 2.05V in 0.05V steps and from 2.1V to 3.5V
in 0.1V increments.
The switching controller drivers two N-MOSFETs at
200KHz frequency and provides an optimal solution
for size, efficiency and cost in any application
circuits. The
functions including PGOOD, output enable, over-
voltage, internal digital-count soft start, and current-
limiting protection in one chip.
Ordering Information
RT9223
DS9223-07 May 2001
Operating temperature range
Package type
S : SOP-20
C: Commercial standard
controller
also
offers
5-Bit Programmable Synchronous PWM
integrated
Features
Applications
Pin Configurations
RT9223CS
(Plastic SOP-20)
Part Number
High
Driver Operating at 200KHz
1.3V ~ 2.05V (0.05V steps) and 2.1V ~ 3.5V
(0.1V steps) Output Voltage
Enable Input, PGOOD Output, OVP, and
Current-limiting Protection
Internal Digital-count Soft Start
Power Supply for Pentium Pro
K6
High-power 5V to 3.xV DC-DC Regulators
Low-voltage Distributed Power Supplies
Programmable Step-down Power Supplies
Buck Converter Controller
TM
, 6x86
Efficiency
TM
, and Alpha
PGOOD
PGNDH
PGNDL
Synchronous
GND
VCC
OVP
CSN
CSP
DH
NC
Pin Configurations
TM
10
1
2
3
4
5
6
7
8
9
TOP VIEW
Microprocessors
www.richtek-ic.com.tw
TM
RT9223
, PowerPC
N-MOSFET
20
19
18
17
16
15
14
13
12
11
VID0
VID1
VID2
VID3
VID4
VSEN
SHDN
BSTH
BSTL
DL
TM
1
,

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RT9223 Summary of contents

Page 1

... General Description The RT9223 is a high efficiency synchronous switching regulator for modern CPU application. The output is controlled by a 5-bit DAC programmed from 1.3V to 2.05V in 0.05V steps and from 2.1V to 3.5V in 0.1V increments. The switching controller drivers two N-MOSFETs at 200KHz frequency and provides an optimal solution for size, efficiency and cost in any application circuits ...

Page 2

... RT9223 Absolute Maximum Ratings VCC to GND PGND to GND BST to GND Ambient Temperature Range Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10 sec.) Package Thermal Resistance SOP-20, θ JA Electrical Characteristics (VCC = 5V; GND = 0V; PGNDH = PGNDL = 0V; VSEN = VOUT; 0mV < (V Parameter Switching Section ...

Page 3

... VID1 VID0 VSEN OPEN DRAIN PGOOD VCC OVP DS9223-07 May 2001 VCC CSN CSP SHDN CURRENT LIMIT _ 70mV OSCILLATOR 200KHz ERROR AMP _ _ GND RT9223 BSTH LEVEL SHIFT DH AND DRIVER PGNDH SHOOT- THROUGH CONTROL BSTL DRIVER DL PGNDL www.richtek-ic.com.tw 3 ...

Page 4

... RT9223 Pin Description Pin No. Pin Name Pin Function 1 GND Small signal analog and digital ground 2 VCC Power supply input 3 OVP High signal out if V (1) 4 PGOOD Open collector logic output; High CSN Current sense input (Negative) 6 CSP Current sense input (Positive) ...

Page 5

... RT9223 Min Typ Max 1.287 1.300 1.313 1.336 1.350 1.364 1.386 1.400 1.414 1.435 1.450 1.465 1.485 1.500 1.515 1.534 1.550 1 ...

Page 6

... VID0 VSEN 19 4 VID1 PGOOD 16 18 VID2 VID4 17 13 VID3 BSTH 14 8 SHDN GND PGNDH 10 11 PGNDL DL 12 BSTL NC C6 RT9223 0.1µ 5mΩ Q1 4µ 0.1µF C3 1N5817 1000µFx6 R4 R3 2.32k 1.00k C5 0.1µF DS9223-07 May 2001 VOUT ...

Page 7

... Dimensions In Millimeters Min Max 12.598 13.005 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 RT9223 Dimensions In Inches Min Max 0.496 0.512 0.291 0.299 0.093 0.104 0.013 0.020 0.047 0.053 0.009 0.013 0.004 ...

Page 8

... RT9223 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 8 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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