参数资料
型号: SC189CULTRT
厂商: Semtech
文件页数: 11/24页
文件大小: 0K
描述: IC REG BUCK SYNC 1.2V 1.5A 6MLPQ
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: 1.2V
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: 1.5A
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: 6-MLPD-UT
包装: 标准包装
供应商设备封装: 6-MLPD-UT(2x2)
产品目录页面: 1357 (CN2011-ZH PDF)
其它名称: SC189CULDKR
SC189
Typical Waveforms ( continued)
Circuit Conditions: V OUT =3.3V (SC189ZULTRT); L= 2.2uH (TOKO: 1071AS-2R2); C IN = C OUT = 10uF/6.3V (Murata: GRM21BR60J106K).
Output Voltage Ripple (V OUT =3.3V)
Output Voltage Ripple (V OUT =3.3V)
V OUT
10mV/div
I LX
500mA/div
V LX
2V/div
Output Voltage Ripple (V OUT =3.3V)
V OUT
10mV/div
I LX
500mA/div
V LX
2V/div
Output Voltage Ripple (V OUT =3.3V)
V IN =5.0V
I OUT =0A
500ns/div
V IN =5.0V
I OUT =1.5A
500ns/div
Transient Response (V OUT =3.3V; (V 0.5A to 1.0A)
Transient (V OUT =3.3V; OUT to
Transient Response Response (V 0A =3.3V) 0.5A)
V OUT
100mV/div
I OUT
500mA/div
V OUT
100mV/div
I OUT
500mA/div
Transient Response OUT =3.3V)
V IN =5.0V
I OUT =0A to 0.5A
50μs/div
V IN =5.0V
I OUT =0.5A to 1A
50μs/div
Start Up (Enable)(V OUT =3.3V)
=3.3V)
Start Up (Enable)(V OUT =3.3V)
=3.3V)
V IN
5V/div
V EN
2V/div
V OUT
1V/div
Start Up (V
OUT
V IN
5V/div
V EN
2V/div
V OUT
1V/div
Start Up (V
OUT
V IN =5.0V
R OUT =1k ?
? 2009 Semtech Corp.
200μs/div
11
V IN =5.0V
R OUT =2.2 ?
200μs/div
www.semtech.com
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