参数资料
型号: NCP3127CRAGEVB
厂商: ON Semiconductor
文件页数: 16/24页
文件大小: 0K
描述: BOARD EVALUATION NCP3127 CERAMIC
设计资源: NCP3127 Schematic
NCP3127 BOM
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 1,非隔离
输出电压: 最低可调至 0.8V
电流 - 输出: 2A
输入电压: 4.5 ~ 13.2 V
稳压器拓扑结构: 降压
频率 - 开关: 350kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: NCP3127
其它名称: NCP3127CRAGEVBOS
NCP3127
C F +
2 p
R 1 ) R 2
R 1 ) R F ) R 2 R F ) R 2
R 1
f cross
(eq. 40)
239 pF +
2 p
31.6 k W
31.6 k W ) 10 k W
20 k W ) 10 k W 20 k W ) 10 k W
31.6 k W
30 kHz
C F
f cross
R 1
R 2
R F
= Feed through capacitor
= Crossover frequency
= Top resistor divider
= Bottom resistor divider
= Feed through resistor
The cross over of the overall feedback occurs at F PO :
V IN
F PO +
2 p
2
C F
2
R 1 ) R F
R 1 ) R F
R 2 ) R 1
R F
R F ) R 1
V ramp
FLC
3
(eq. 41)
16.86 kHz +
2 p
2
239 pF
2
31.6 k W ) 20 k W
31.6 k W ) 20 k W 20 k W ) 10 k W
20 k W
20 k W ) 31.6 k W
1.1 V
2.119 kHz
12 V
C F
F LC
F PO
R 1
R 2
R F
V IN
V ramp
= Feed through capacitor
= Frequency of the output inductor and capacitor
= Pole frequency
= Top of resistor divider
= Bottom of resistor divider
= Feed through resistor
= Input voltage
= Peak ? to ? peak voltage of the ramp
The cross over combined compensation network can be
used to calculate the transconductance output compensation
network as follows:
C C +
1
F PO 4 p
R 2
R 2
R 1
gm 3
(eq. 42)
57.5 nF +
1
16.86 kHz
10 k W
10 k W ) 31.6 k W
4 ms
C C
F PO
gm
R 1
R 2
= Compensation capacitor
= Pole frequency
= Transconductance of amplifier
= Top of resistor divider
= Bottom of resistor divider
http://onsemi.com
16
相关PDF资料
PDF描述
NCP3125CRAGEVB BOARD EVALUATION NCP3125 CERAMIC
R1S12-3.309-R CONV DC/DC 1W 3.3VIN 09VOUT
RCC05DREI-S13 CONN EDGECARD 10POS .100 EXTEND
195D106X9016X2T CAP TANT 10UF 16V 10% 2910
GEC17DRTS-S93 CONN EDGECARD 34POS DIP .100 SLD
相关代理商/技术参数
参数描述
NCP3155ADR2G 功能描述:直流/直流开关调节器 BUCK CONTROLLER RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
NCP3155AGEVB 功能描述:电源管理IC开发工具 BUCK CONTROLLER EVB RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
NCP3155BDR2G 功能描述:直流/直流开关调节器 3 A SYNCHRONOUS BUCK RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
NCP3155BGEVB 功能描述:电源管理IC开发工具 3 A SYNCHRONOUS BUCK RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
NCP3163_Boost_EVB 制造商:ON Semiconductor 功能描述:3.4 A, Step-Up/Down/Inverting Switching Regulator 制造商:ON Semiconductor 功能描述:3.4A,24V,Step-Up Switching Regulator