参数资料
型号: SC4626HSKTRT
厂商: Semtech
文件页数: 19/22页
文件大小: 0K
描述: IC REG BUCK SYNC 1.5V 1A SOT23-5
标准包装: 1
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 1.5V
输入电压: 2.9 V ~ 5.5 V
PWM 型: 电压模式
频率 - 开关: 2.5MHz
电流 - 输出: 1A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
包装: 标准包装
供应商设备封装: SOT-23-5
其它名称: SC4626HSKDKR
SC4626
Applications Information (continued)
input and output voltage. The maximum input capacitor
RMS current is found from the equation
? ? 1 ? OUT
? ?
I CIN ( RMS ) =
V OUT
V IN
? V
? V IN
?
?
The input voltage ripple and RMS current ripple are at
maximum when the input voltage is twice the output
voltage or 50% duty cycle.
The input capacitor provides a low impedance loop for
the edges of pulsed current drawn by the PMOS switch.
Low ESR/ESL X5R ceramic capacitors are recommended
for this function. To minimise stray inductance ,the
capacitor should be placed as closely as possible to the
VIN and GND pins of the SC4626.
Manufacturer
Part Nunber
Murata 
GRM21BR61A106K
Murata 
GRM21BR71A106K
Murata 
GRM21BR60J106K
Murata 
GRM21BR70J106K
Murata 
GRM21BR60J226M
Value
(μF)
10±10%
10±10%
10±10%
10±10%
22±20%
Type
X5R
X7R
X5R
X7R
X5R
Rated
Voltage
(VDC)
10
10
6.3
6.3
6.3
Value
at
3.3V
(μF)
4.42
4.88
4.05
4.91
6.57
Dimensions
LxWxH
(mm)
2.0x1.25x1.25
(EIA:0805)
2.0x1.25x1.25
(EIA:0805)
2.0x1.25x1.25
(EIA:0805)
2.0x1.25x1.25
(EIA:0805)
2.0x1.25x1.25
(EIA:0805)
Table 3 – Recommended Capacitors
? 2009 Semtech Corp.
19
www.semtech.com
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