参数资料
型号: MC34704AEPR2
厂商: Freescale Semiconductor
文件页数: 47/54页
文件大小: 0K
描述: IC PWR MNGMT DC-DC MULT 56-QFN
特色产品: MC34704 Multi-channel Power Management IC (PMIC)
标准包装: 1
应用: 处理器
电流 - 电源: 86mA
电源电压: 2.7 V ~ 5.5 V
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 56-VFQFN 裸露焊盘
供应商设备封装: 56-QFN-EP(7x7)
包装: 标准包装
产品目录页面: 808 (CN2011-ZH PDF)
其它名称: MC34704AEPR2DKR
C1 = ------------------ ? ---------------- 2 ? ? ----------------------------- ?
V RAMP ? D ′ ? ? 2 π ( F PO R1 ) ?
C2 = ? ---------------------------- ?
R2 = ? ---------------------------- ?
R3 = ? ---------------------------- ?
C3 = ? ---------------------------- ?
FUNCTIONAL DEVICE OPERATION
COMPONENT CALCULATION
The passive components associated to these frequencies are calculated with the following formulas.
Vin min ? 1 ? 1
min
1
? 2 π ( F Z2 R1 ) ?
1
? 2 π ( F Z1 C1 ) ?
1
? 2 π ( F P1 C2 ) ?
1
? 2 π ( F P2 R2 ) ?
On the 34704 V RAMP is half of 1.2 V since each operation mode spends only half the ramp.
34704
Analog Integrated Circuit Device Data
Freescale Semiconductor
47
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