参数资料
型号: NCP5215MNR2G
厂商: ON Semiconductor
文件页数: 12/21页
文件大小: 0K
描述: IC CTLR SYNC BUCK DUAL 40-QFN
产品变化通告: Product Discontinuation 01/Oct/2008
标准包装: 2,500
应用: 控制器,笔记本电脑电源系统
输入电压: 4.5 V ~ 24 V
输出数: 2
输出电压: 0.8 V ~ 3 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-VFQFN 裸露焊盘
供应商设备封装: 40-QFN(6x6)
包装: 带卷 (TR)
NCP5215
TYPICAL OPERATING CHARACTERISTICS
Top: Vo1, CH1 Output Voltage Ripple, (50mV/div)
Middle: Io1, CH1 Output Current, (5A/div)
Bottom: SWN1, CH1 Switching Node Voltage, (10V/div)
Time: 20 m s/div
Figure 22. Load Transient Response with
FPWM Operation (V O 1 = 1.5 V,
I O 1 = 0 A ? 4 A ? 0 A)
Top: Vo1, CH1 Output Voltage Ripple, (50mV/div)
Middle: Io1, CH1 Output Current, (5A/div)
Bottom: SWN1, CH1 Switching Node Voltage, (10V/div)
Time: 50 m s/div
Figure 24. Load Transient Response with
Skip ? Mode Operation (V O 1 = 1.5 V, I O 1 =
0.1 A ? 4 A ? 0.1 A)
Top: FPWM#, FPWM# Signal, (5V/div)
Middle 1: Vo1, CH1 Output Voltage Ripple, (50mV/div)
Middle 2: iL1, CH1 Inductor Current, (5A/div)
Bottom: SWN1, CH1 Switching Node Voltage, (10V/div)
Time: 50 m s/div
Figure 26. On ? Line Mode ? Changing Operation
(V O 1 = 1.5 V, I O 1 = 0.2 A, FPWM ? Skip
Mode ? FPWM)
Top: Vo2, CH2 Output Voltage Ripple, (50mV/div)
Middle: Io2, CH2 Output Current, (5A/div)
Bottom: SWN2, CH2 Switching Node Voltage, (10V/div)
Time: 20 m s/div
Figure 23. Load Transient Response with
FPWM Operation (V O 2 = 1.05 V, I O 2 =
0 A ? 6 A ? 0 A)
Top: Vo2, CH2 Output Voltage Ripple, (50mV/div)
Middle: Io2, CH2 Output Current, (5A/div)
Bottom: SWN2, CH2 Switching Node Voltage, (10V/div)
Time: 50 m s/div
Figure 25. Load Transient Response with
Skip ? Mode Operation (V O 2 = 1.05 V, I O 2 =
0.1 A ? 6 A ? 0.1 A)
Top: FPWM#, FPWM# Signal, (5V/div)
Middle 1: Vo2, CH2 Output Voltage Ripple, (50mV/div)
Middle 2: iL2, CH2 Inductor Current, (5A/div)
Bottom: SWN2, CH2 Switching Node Voltage, (10V/div)
Time: 50 m s/div
Figure 27. On ? Line Mode ? Changing Operation
(V O 2 = 1.05 V, I O 2 = 0.2 A, FPWM ? Skip
Mode ? FPWM)
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