参数资料
| 型号： | CS5165AGDW16 |
| 厂商： | ON Semiconductor |
| 文件页数： | 10/18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
and carries the output current. With no load, there is no DC
drop across this resistor, producing an output voltage tracking
the Error amps, including the +40 mV offset. When the full
load current is delivered, an 80 mV drop is developed across
this resistor. This results in output voltage being offset
?40 mV low.
The result of Adaptive Voltage Positioning is that
additional margin is provided for a load transient before
reaching the output voltage specification limits. When load
current suddenly increases from its minimum level, the
output capacitor is pre?positioned +40 mV. Conversely, when
load current suddenly decreases from its maximum level, the
output capacitor is pre?positioned ?40 mV (see Figures 15,
Trace 1? GATE(H) (10 V/div.)
Trace 2? Inductor Switching Node (5.0 V/div.)
Trace 3? Output Inductor Ripple Current (2.0 A/div.)
Trace 4? V OUT ripple (20 mV/div.)
Figure 13. Normal Operation Showing Output Inductor
Ripple Current and Output Voltage Ripple, 0.5 A Load,
V OUT = +2.84 V (DAC = 10111)
Trace 1? GATE(H) (10 V/div.)
Trace 2? Inductor Switching Node (5.0 V/div.)
Trace 3? Output Inductor Ripple Current (2.0 A/div.)
Trace 4? V OUT ripple (20 mV/div.)
Figure 14. Normal Operation Showing Output Inductor
Ripple Current and Output Voltage Ripple,
I LOAD = 14 A, V OUT = +2.84 V (DAC = 10111)
Transient Response
The CS5165A V 2 control loop’s 100 ns reaction time
provides unprecedented transient response to changes in
input voltage or output current. Pulse by pulse adjustment of
duty cycle is provided to quickly ramp the inductor current to
the required level. Since the inductor current cannot be
changed instantaneously, regulation is maintained by the
output capacitor(s) during the time required to slew the
inductor current.
Overall load transient response is further improved through
a feature called “Adaptive Voltage Positioning”. This
technique pre?positions the output capacitors voltage to
reduce total output voltage excursions during changes in load.
Holding tolerance to 1.0% allows the error amplifiers
reference voltage to be targeted +40 mV high without
16, and 17). For best Transient Response, a combination of a
number of high frequency and bulk output capacitors are
usually used.
If the Maximum On?Time is exceeded while responding to
a sudden increase in Load current, a normal off?time occurs
to prevent saturation of the output inductor.
Trace 3? Load Current (5.0 A/10 mV/div.)
Trace 4? V OUT (100 mV/div.)
Figure 15. Output Voltage Transient Response to
a 14 A Load Pulse, V OUT = +2.84 V (DAC = 10111)
Trace 1? GATE(H) (10 V/div.)
Trace 2? Inductor Switching Node (5.0 V/div.)
Trace 3? Load Current (5.0 A/div)
compromising DC accuracy.
A “Droop Resistor”,
Trace 4? V OUT (100 mV/div.)
implemented through a PC board trace, connects the Error
Amps feedback pin (V FB ) to the output capacitors and load
Figure 16. Output Voltage Transient Response to a
14 A Load Step, V OUT = +2.84 V (DAC = 10111)
http://onsemi.com
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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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