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參數資料
| 型號： | RC5057M |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | High Performance Programmable Synchronous DC-DC Controller for Low Voltage Microprocessors |
| 中文描述： | SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 177K |
| 代理商： | RC5057M |
www.fairchildsemi.com
Pentium is a registered trademark of Intel Corporation
Rev. 1.2.0
Features
Programmable output from 1.3V to 3.5V using an
integrated 5-bit DAC
Remote sense
Active Droop
85% efficiency typical at full load
Integrated Power Good and Enable/Soft Start functions
Drives N-channel MOSFETs
Overcurrent protection using MOSFET sensing
16 pin SOIC package
Meets Intel Pentium II & III specifications using
minimum number of external components
Applications
Power supply for Pentium
VRM for Pentium II & III processor
Telecom line cards
Routers, switches & hubs
Programmable step-down power supply
II & III
Description
The RC5057 is a synchronous mode DC-DC controller IC
which provides a highly accurate, programmable output voltage
for all Pentium II & III CPU applications and other high-perfor-
mance processors. The RC5057 features remote voltage
sensing, adjustable current limit, and active droop for optimal
converter transient response. The RC5057 uses a 5-bit D/A
converter to program the output voltage from 1.3V to 3.5V.
The RC5057 uses a high level of integration to deliver load cur-
rents in excess of 16A from a 5V source with minimal exter-
nal circuitry. Synchronous-mode operation offers optimum
efficiency over the entire specified output voltage range. An
on-board precision low TC reference achieves tight tolerance
voltage regulation without expensive external components,
while active droop permits exact tailoring of voltage for the
most demanding load transients. The RC5057 also offers
integrated functions including Power Good, Output Enable/
Soft Start and current limiting, and is available in a 16 pin
SOIC package.
Block Diagram
1
VID0
VID1
GNDP
7
6
10
3
8
9
2
-
+
-
+
OSC
1.24V
Reference
Digital
Control
5-Bit
DAC
VID2
VID3
VID4
1615141312
+5V
+12V
PWRGD
-
+
ENABLE/SS
VO
GNDA
11
LODRV
HIDRV
VCCP
R
S
5
VCCA
+5V
4
+
-
Power
Good
RC5057
High Performance Programmable Synchronous
DC-DC Controller for Low Voltage Microprocessors
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相關代理商/技術參數 |
參數描述 |
|---|---|
| RC5057MT | 功能描述:開關變換器、穩壓器與控制器 Syn DC-DC Controller Programmable RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| RC5057N | 功能描述:開關變換器、穩壓器與控制器 DIP-16 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| RC5058 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:High Performance Programmable Synchronous DC-DC Controller for Multi-Voltage Platforms |
| RC5058M | 功能描述:開關變換器、穩壓器與控制器 SOIC-24 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| RC5058MT | 功能描述:開關變換器、穩壓器與控制器 SOIC-24 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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