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參數(shù)資料
| 型號(hào)： | SC2688 |
| 廠商： | Semtech Corporation |
| 英文描述： | Programmable Synchronous DC/DC Converter, Dual LDO Controller |
| 中文描述： | 可編程同步DC / DC轉(zhuǎn)換器，雙LDO控制器 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 245K |
| 代理商： | SC2688 |
POWER MANAGEMENT
Description
1
www.semtech.com
SC2688
Programmable Synchronous DC/DC
Converter, Dual LDO Controller
Features
Applications
Embedded Pentium
III microprocessor supplies.
Revision: March 25, 2004
The SC2688 combines a synchronous voltage mode
controller with two low-dropout linear regulators
providing most of the circuitry necessary to implement three
DC/DC converters for powering advanced microprocessors
such as Pentium
III.
The SC2688 switching section features latched drive out-
put for enhanced noise immunity, pulse by pulse current
limiting and logic compatible shutdown. The SC2688
switching section operates at a fixed frequency of 140kHz,
providing an optimum compromise between size, efficiency
and cost in the intended application areas.
The SC2688 linear sections are low dropout regulators
with short circuit protection, supplying 1.5V for GTL bus
and 2.5V for non-GTL I/O.
·Synchronous design, enables no heatsink solution
95% efficiency (switching section)
Designed for embedded Pentium
III requirements
1.5V, 2.5V short circuit protected linear controllers
Typical Application Circuit
0.1uF
EN
2R2
1.5V
1k
1.9uH
+
330uF
2R2
3.3V
2.5V
0.1uF
SC2688S
16
4
5
6
7
8
11
12
13
10
9
15
1
14
2
3
AGND
VCC
LDOEN
CS-
CS+
DH
BST
EN
FB
DL
PGND
GATE2
GATE1
LDOV
LDOS1
LDOS2
x6
12V
0.1uF
1.00k
0.1uF
+
330uF
VCC_CORE
5mOhm
0.1uF
x4
+
330uF
+
1500uF
10
+
1500uF
5V
2.32k
+
47uF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC2688STR | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Programmable Synchronous DC/DC Converter, Dual LDO Controller |
| SC26C198 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal UART with TTL compatibility at 3.3V and 5V supply voltages |
| SC26C198A1A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal UART with TTL compatibility at 3.3V and 5V supply voltages |
| SC26C198C1A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal UART with TTL compatibility at 3.3V and 5V supply voltages |
| SC26C562 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:CMOS dual universal serial communications controller CDUSCC |
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