参数资料
| 型号： | CS5165AGDW16 |
| 厂商： | ON Semiconductor |
| 文件页数： | 16/18页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR BUCK SYNC 5BIT 16-SOIC |
| 产品变化通告： | Product Obsolescence 11/Feb/2009 Product Obsolescence 30/Dec/2003 |
| 标准包装： | 47 |
| 应用： | 控制器，Intel Pentium? II |
| 输入电压： | 8 V ~ 14 V |
| 输出数： | 2 |
| 输出电压： | 1.34 V ~ 2.09 V，2.14 V ~ 3.54 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 管件 |
CS5165A
This applies for current spikes that are faster than
regulator response time. Printed Circuit Board resistance
will add to the ESR of the output capacitors.
In order to limit spikes to 100 mV for a 14.2 A Load Step,
ESR = 0.1/14.2 = 0.007 W
Inductor Peak Current
THERMAL MANAGEMENT
Thermal Considerations for Power
MOSFETs and Diodes
In order to maintain good reliability, the junction
temperature of the semiconductor components should be
kept to a maximum of 150 ° C or lower. The thermal
Peak Current + Maximum Load Current )
Ripple Current
2
impedance (junction to ambient) required to meet this
requirement can be calculated as follows:
Thermal Impedance +
Example: V IN = +5.0 V, V OUT = +2.8 V, I LOAD = 14.2 A,
L = 1.2 m H, Freq = 200 kHz
Peak Current + 14.2 A ) (5.1 2) + 16.75 A
A key consideration is that the inductor must be able to
deliver the Peak Current at the switching frequency without
saturating.
Response Time to Load Increase
(limited by Inductor value unless Maximum On?Time is
exceeded)
TJUNCTION(MAX) * TAMBIENT
Power
A heatsink may be added to TO?220 components to reduce
their thermal impedance. A number of PC board layout
techniques such as thermal vias and additional copper foil
area can be used to improve the power handling capability of
surface mount components.
EMI Management
As a consequence of large currents being turned on and off
at high frequency, switching regulators generate noise as a
Response Time +
L D IOUT
(VIN * VOUT)
consequence of their normal operation. When designing for
compliance with EMI/EMC regulations, additional
Response Time +
+ 7.7 m s
Response Time +
Response Time +
+ 6.1 m s
Example: V IN = +5.0 V, V OUT = +2.8 V, L = 1.2 m H, 14.2 A
change in Load Current
1.2 m H 14.2 A
(5.0 V * 2.8 V)
Response Time to Load Decrease
(limited by Inductor value)
L Change in IOUT
VOUT
Example: V OUT = +2.8 V, 14.2 A change in Load Current,
L = 1.2 m H
1.2 m H 14.2 A
2.8 V
components may be added to reduce noise emissions. These
components are not required for regulator operation and
experimental results may allow them to be eliminated. The
input filter inductor may not be required because bulk filter and
bypass capacitors, as well as other loads located on the board
will tend to reduce regulator di/dt effects on the circuit board
and input power supply. Placement of the power component to
minimize routing distance will also help to reduce emissions.
Layout Guidelines
When laying out the CPU buck regulator on a printed
circuit board, the following checklist should be used to ensure
proper operation of the CS5165A.
Input and Output Capacitors
These components must be selected and placed carefully to
yield optimal results. Capacitors should be chosen to provide
acceptable ripple on the input supply lines and regulator
output voltage. Key specifications for input capacitors are
their ripple rating, while ESR is important for output
capacitors. For best transient response, a combination of low
value/high frequency and bulk capacitors placed close to the
load will be required.
http://onsemi.com
16
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相关代理商/技术参数 |
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| CS5165AGDW16G | 功能描述:DC/DC 开关控制器 5-Bit Synchronous Dual N-Channel Buck RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| CS5165AGDWR16 | 功能描述:DC/DC 开关控制器 5-Bit Synchronous RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| CS5165AGDWR16G | 功能描述:DC/DC 开关控制器 ANA BUCK SYNC 5BIT CNTRLR RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| CS-5165DW16 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage-Mode SMPS Controller |
| CS-5165DWR16 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage-Mode SMPS Controller |
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