参数资料
| 型号： | CS5157HGDR16 |
| 厂商： | ON Semiconductor |
| 文件页数： | 8/16页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR BUCK SYNC 5BIT 16SOIC |
| 产品变化通告： | Product Obsolescence 23/Nov/2010 Product Obsolescence 30/Dec/2003 |
| 标准包装： | 2,500 |
| 应用： | 控制器，Intel Pentium? II |
| 输入电压： | 4.25 V ~ 20 V |
| 输出数： | 2 |
| 输出电压： | 1.3 V ~ 2.05 V，2.1 V ~ 3.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
| 其它名称： | CS5157HGDR16OS |
CS5157H
M 250 m s
Trace 1? Regulator Output Voltage (1.0 V/div.)
Trace 2? Inductor Switching Node (2.0 V/div.)
Trace 3? 12 V Input (V CC1 and V CC2 ) (5.0 V/div.)
Trace 4? 5.0 V Input (1.0 V/div.)
Figure 4. CS5157H Demonstration Board Startup in
Response to Increasing 12 V and 5.0 V Input Voltages.
Extended Off Time is Followed by Normal Off Time
Operation when Output Voltage Achieves Regulation to
the Error Amplifier Output.
M 10.0 m s
Trace 1? Regulator Output Voltage (5.0 V/div.)
Trace 2? Inductor Switching Node (5.0 V/div.)
Figure 6. CS5157H Demonstration Board Enable
Startup Waveforms
Normal Operation
During normal operation, switch off time is constant and
set by the C OFF capacitor. Switch on time is adjusted by the
V 2 control loop to maintain regulation. This results in
changes in regulator switching frequency, duty cycle, and
output ripple in response to changes in load and line. Output
voltage ripple will be determined by inductor ripple current
working into the ESR of the output capacitors (see Figures
7 and 8).
M 2.50 ms
Trace 1? Regulator Output Voltage (1.0 V/div.)
Trace 3? COMP PIn (error amplifier output) (1.0 V/div.)
Trace 4? Soft?Start Pin (2.0 V/div.)
Figure 5. CS5157H Demonstration Board Startup
Waveforms
If the input voltage rises quickly, or the regulator output
is enabled externally, output voltage will increase to the
level set by the error amplifier output more rapidly, usually
within a couple of cycles (see Figure 6).
M 1.00 m s
Trace 1? Regulator Output Voltage (10 mV/div.)
Trace 2? Inductor Switching Node (5.0 V/div.)
Figure 7. Peak?to?Peak Ripple on V OUT = 2.8 V,
I OUT = 0.5 A (Light Load)
http://onsemi.com
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS5157HGDR16G | 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 |
| CS-5158D16 | 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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