参数资料
型号: MIC2124YMM
厂商: Micrel Inc
文件页数: 18/24页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 10-MSOP
产品培训模块: MIC2124 Synchronous Current Mode DC-DC Buck Controller
标准包装: 100
系列: Hyper Speed Control™
PWM 型: 电流模式
输出数: 1
频率 - 最大: 360kHz
占空比: 93%
电源电压: 3 V ~ 5.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 管件
其它名称: 576-3639-5
MIC2124YMM-ND
Micrel, Inc.
MIC2124
Others
?
The compensation resistor and capacitors should be
?
In order to accurately sense the voltage across the
low-side MOSFET, the LX pin and PGND pin should
be Kelvin connected to the drain and source of the
placed right next to the COMP pin and the other side
should connect directly to the GND pin on the
MIC2124 rather than going to the plane.
low-side MOSFET.
?
HSD pin is sensitive to the noise. Too much noise at
?
The feedback resistors R FB1 and R FB2 (refer to the
typical application schematic on page 1) should be
placed close to the FB pin. The top side of R FB1
should connect directly to the output node. Run this
trace away from the switch node (junction of Q1, Q2,
and the output inductor).
HSD pin may cause the jittering at LX. A 10 ?
resistor and 0.1 μ F capacitor low-pass filter at the
HSD is able to mitigate the noise.
June 2010
18
M9999-060810-D
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