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參數(shù)資料
| 型號(hào)： | RT9237 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | MULTI-PHASE DC/DC CONTROLLER FOR CPU CORE POWER SUPPLY |
| 中文描述： | 多相DC / DC控制器的CPU內(nèi)核供電 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大小： | 323K |
| 代理商： | RT9237 |
Preliminary
RT9237
DS9237-00 January 2002
www.richtek-ic.com.tw
1
Multi-Phase DC/DC Controller for CPU Core Power Supply
General Description
The RT9237 is a multi-phase buck DC/DC controller
integrated with all control functions for high
performance processor VRM. The RT9237 drives 2,
3 or 4 buck switching stages operating in interleaved
phase
set
automatically.
architecture provides high output current while
maintaining low power dissipation on power devices
and low stress on input and output capacitors. The
high equivalent operating frequency also reduces
the component dimension and the output voltage
ripple in load transient.
The
multi-phase
RT9237 regulates both easily set voltage and
current loops. Precise current sharing for power
stage is achieved by differential input current sense
and processing circuit. The settings of current
sense, droop tuning and over current protection are
independent to compensation circuit of voltage loop.
The feature greatly facilitates the flexibility of CPU
power supply design and tuning.
The RT9237 uses a 5-bit DAC of 1.1V to 1.85V
(25mV/step) output with load current droop
compensation to meet the strict VRM transient
requirement. The IC monitors the VCORE voltage
for PGOOD and over voltage protection. Soft start,
over current protection and programmable under
voltage lockout are also provided to assure the
safety of microprocessor and power system.
Applications
z
Power Supply for Server and Workstation
z
Power Supply for High Current Microprocessor
Ordering Information
RT9237
Features
z
Multi-Phase Power Conversion with Automatic
Phase Selection
z
VRM 9.0 DAC Output with Active Droop
Compensation for Fast Load Transient
Channel
Current
Differential Sense Input
z
Precise
Sharing
with
z
Hiccup Mode Over Current Protection
z
Programmable Under Voltage Lockout and
Soft Start
z
High Ripple Frequency, (Channel Frequency
200KHz) Times Channel Number
Pin Configurations
Part Number
Pin Configurations
RT9237CS
(Plastic SOP-28)
TOP VIEW
Operating temperature range
C: Commercial standard
Package Type
S : SOP-28
1
2
3
4
5
6
7
8
9
10
11
12
17
18
19
20
21
22
23
24
25
26
27
28
13
14
16
15
VID3
VID2
VID1
VID0
COMP
FB
ADJ
GND
VSEN
IRMP
VID4
DVD
IMAX
SS
ISP4
ISP1
PWM1
PWM2
ISP2
ISP3
VDD
PGOOD
PWM4
PWM3
ISN1
ISN2
ISN3
ISN4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RT9237CS | MULTI-PHASE DC/DC CONTROLLER FOR CPU CORE POWER SUPPLY |
| RT9262ACS | HIGH EFFICIENCY, LOW SUPPLY CURRENT, STEP-UP DC/DC CONVERTER |
| RT9262CS | HARNESS CLIP MOUNT RoHS Compliant: Yes |
| RT9262 | HIGH EFFICIENCY, LOW SUPPLY CURRENT, STEP-UP DC/DC CONVERTER |
| RT9262A | HIGH EFFICIENCY, LOW SUPPLY CURRENT, STEP-UP DC/DC CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT9237A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| RT9237CS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MULTI-PHASE DC/DC CONTROLLER FOR CPU CORE POWER SUPPLY |
| RT9238 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VRM 8.5 PWM AND TRIPLE LINEAR POWER SYSTEM CONTROLLER |
| RT9238CS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VRM 8.5 PWM AND TRIPLE LINEAR POWER SYSTEM CONTROLLER |
| RT9241 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Two-Phase DC/DC Controller for CPU Core Power Supply |
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