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參數資料
| 型號： | SC4624MLTRT |
| 廠商： | Semtech Corporation |
| 英文描述： | Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator |
| 中文描述： | 低輸入電壓，高效率及4A集成FET的同步降壓直流/直流穩壓器 |
| 文件頁數： | 1/20頁 |
| 文件大?。?/td> | 738K |
| 代理商： | SC4624MLTRT |
POWER MANAGEMENT
Description
SC4624
Low Input Voltage, High Efficiency, 4A Integrated
FET Synchronous Step down DC/DC Regulator
The SC4624 is a highly integrated synchronous step-down
DC/DC regulator designed for low input voltage range of
2.3V to 5.5 Volts. It can deliver 4A continuous output
current with the output voltage as low as 0.5 Volts. The
internal low R
synchronous power switches eliminate
the need for external Schottky diode while delivering
overall converter efficiency up to 95%.
A power good pin is available to monitor the output voltage
status. Operating frequency is adjustable from 200 kHz
to 2MHz with a single resistor and it can be synchronized
to an external clock.
The SC4624 offers adjustable current limit, soft start and
over temperature protection to safeguard the device under
extreme operating conditions. The soft start provides a
controlled output voltage ramp up at startup. When a
logic low is applied to the Enable pin, the SC4624 enters
the shutdown mode and it consumes less than 1μA of
current.
The SC4624 is available in 4x4 MLPQ-20 and SOIC-16EDP
package, and it is rated over -40°C to +85°C ambient
temperature range.
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VIN Range: 2.3 – 5.5V
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4A Continuous Output Current
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Adjustable Output Voltage 0.5V to Vin
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Low R
integrated FETs: 75mΩ and 47mΩ
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Up to 95% Efficiency
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Synchronizable and Programmable Frequency:
200kHz – 2MHz
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Power Good Monitor
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<1μA of Shutdown Current
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Programmable Soft Start
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Programmable Current Limit
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Over Temperature protection
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-40 to +85 °C Ambient Temperature Range
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Starts into pre-biased output
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4x4mm MLPQ-20 and SOIC-16EDP packages-
WEEE and RoHS Compliant
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Low Voltage Distributed DC-DC Converters
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Telecommunication Power Supplies
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Portable Equipment
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xDSL
www.semtech.com
1
Revision: July 24, 2007
Features
Typical Application Circuit
Applications
Vout
Vin
C8
L2
R6
R7
R4
C2
C11
R2
SC4624
COMP
FB
PGOOD
SYNC/EN
VCC
SS
ISET
FS
A
PH
PVIN
P
C1
C3
R9
L1
C5
C7
R8
R5
R3
C9
R11
C4
R1
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| SC470EVB | Synchronous Buck Controller for Dynamic Load-Voltage Applications |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SC4624SETRT | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator |
| SC4626 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:2.5MHz, 1A Synchronous Step Down Regulator in SOT23-5 |
| SC4626ASKTRT | 功能描述:IC REG BUCK SYNC 1V 1A SOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON（1.45x1） 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| SC4626FSKTRT | 功能描述:IC REG BUCK SYNC 1.3V 1A SOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON（1.45x1） 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| SC4626HSK.TRT | 制造商:SEMTECH 功能描述:I.C. |
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