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參數資料
| 型號： | SC4210A |
| 廠商： | Semtech Corporation |
| 英文描述： | 8-Pin N-FET Linear Regulator Controller |
| 中文描述： | 8引腳? - FET的線性穩壓器控制器 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 296K |
| 代理商： | SC4210A |
POWER MANAGEMENT
Description
The SC4210A linear regulator controller includes all the
features required for an extremely low dropout linear
regulator that uses an external N-channel MOSFET as
the pass transistor. The device can operate from input
voltages as low as 1.75V and can provide high current
levels, thus providing an efficient linear solution for cus-
tom processor voltages, bus termination voltages, and
other logic level voltages down to 0.5V. The onboard
charge pump creates a gate drive voltage capable of driv-
ing an external N-MOSFET which is optimal for low drop-
out voltage and high efficiency. The wide versatility of
this IC allows the user to optimize the setting of both
current limit and output voltage for applications beyond
or between standard 3-terminal linear regulator ranges.
1
www.semtech.com
SC4210A
8-Pin N-FET Linear
Regulator Controller
Features
Applications
Revision: October 26, 2004
The 8-pin controller IC features a duty ratio current limit-
ing technique that provides peak transient loading capa-
bility while limiting the average power dissipation of the
pass transistor during fault conditions.
The SC4210A is available in an MSOP-8 surface mount
package.
On-board charge pump to drive external N-MOSFET
Input voltage as low as 1.75V to 5.5V
Duty ratio mode over-current protection
Extremely low dropout voltage
Low external parts count
Output voltages as low as 0.5V
MSOP-8 package
Telecom and networking cards
Industrial applications
Wireless infrastructure
Set-top boxes
Post regulated power supplies
Typical Application Circuit
C3
0.01
C7opt.
10μF
R1
R5
499
R4
1.30k
Vin = 3.3V
VDD
1
CAP
2
GND
3
CT
7
CS
8
VOUT
5
FB
6
COMP
4
U1
SC4210A
C5
0.1
C4
150pF
R2
24k
Q1
FDB7030BL
Vout = 1.8V @ 6Ap-k
C2
0.01
R3
39k
C6
0.01
C1
22μF
相關PDF資料 |
PDF描述 |
|---|---|
| SC4211 | Very Low Input /Very Low Dropout 1 Amp Regulator With Enable |
| SC4211EVB | Very Low Input /Very Low Dropout 1 Amp Regulator With Enable |
| SC4211STRT | Very Low Input /Very Low Dropout 1 Amp Regulator With Enable |
| SC4215_06 | Very Low Input /Very Low Dropout 2 Amp Regulator With Enable |
| SC4215EVB | Very Low Input /Very Low Dropout 2 Amp Regulator With Enable |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SC4210AIMSTRT | 制造商:Semtech Corporation 功能描述:IC, LDO VOLT REG, 2mA, MSOP-8, Primary Input Voltage:5.5V, No. of Pins:8, Output |
| SC4210IMSTRT | 制造商:Semtech Corporation 功能描述:Controller IC 制造商:Semtech Corporation 功能描述:IC, LINEAR REGULATOR CONTROLLER, MSOP-8, Primary Input Voltage:15V, No. of Outpu |
| SC4211 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Very Low Input /Very Low Dropout 1 Amp Regulator With Enable |
| SC4211_06 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Very Low Input /Very Low Dropout 1 Amp Regulator With Enable |
| SC4211_08 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Very Low Input /Very Low Dropout 1 Amp Regulator With Enable |
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