参数资料
| 型号： | SC2596STRT |
| 厂商： | Semtech |
| 文件页数： | 8/14页 |
| 文件大小： | 0K |
| 描述： | IC INTEGRTD DDRII TERM REG 8SOIC |
| 标准包装： | 1 |
| 应用： | 转换器，DDR |
| 输入电压： | 2.3 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 0.9V，1.25V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 标准包装 |
| 其它名称： | SC2596SDKR |
SC2596
POWER MANAGEMENT
Block Diagram
EN
AVCC
PRELIMINARY
PVCC
VDDQ
Vref Buffer
UVLO +
Thermal
Shutdown
+
-
Error Am p.
Anti-
Shoot-
thru
+
Driver
Circuit
VTT
GND
VREF
Description
SC2596 is a low-voltage, low-dropout DDR termination
regulator with separate power supply to support both
DDR1 and DDR2 applications. AVCC and PVCC can be
tied together for DDR1 and can also be separated for
DDR2.
SC2596 regulates VTT to the voltage of VREF. VTT will
sink or source upto 2.5A. Internal shoot-through protec-
tion ensure both top and bottom MOSFET will not con-
duct while maintaining fast source-to-sink load transient.
Thermal shut-down and internal current limit protect
SC2596 from shorted load or over-heated
VREF BUFF
VREF is derived from VDDQ with an accurate divide by
op-amps(VREF Buffer). It is capable to sink and source
30uA. It is used as the reference voltage to the Error
amp. A 100nF or higher capacitor is recommended for
VREF pin to ground; To enhance the noise immunity from
board, an additional pull-down resistor (1M Ω ) is
recomanded as well from VREF pin to ground.
Vsense
ERROR AMP
Low input offset op-amp for the main linear regulator. It
controls the VTT output voltage and which side of the
MOSFET to turn on (or turn off) to achieve zero shoot
through current.
ANTI-Shoot Thought Driver
Buffer stage takes the error voltage to control MOSFET.
Internal current limit is incorporated to protect from
shorted load.
THERMAL SHUTDOWN & UVLO
The Thermal shutdown block prevent the junction tem-
perature exceed 165 o C. UVLO circuit to ensure proper
power is available for correct operation of the IC.
? 2009 Semtech Corp.
8
www.semtech.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC25A | 制造商:GXELECTRONICS 制造商全称:Gaomi Xinghe Electronics Co., Ltd. 功能描述:High current capability |
| SC25B | 制造商:GXELECTRONICS 制造商全称:Gaomi Xinghe Electronics Co., Ltd. 功能描述:High current capability |
| SC25D | 制造商:GXELECTRONICS 制造商全称:Gaomi Xinghe Electronics Co., Ltd. 功能描述:High current capability |
| SC25-FM-M25 | 制造商:HellermannTyton 功能描述:SC25-FM-M25-NPB-ML-1 |
| SC25G | 制造商:GXELECTRONICS 制造商全称:Gaomi Xinghe Electronics Co., Ltd. 功能描述:High current capability |
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