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| 型号： | TPS62101DR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.6 A SWITCHING REGULATOR, 750 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | GREEN, SOIC-8 |
| 文件页数： | 2/27页 |
| 文件大小： | 537K |
| 代理商： | TPS62101DR |
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TPS62100, TPS62101, TPS62102, TPS62103
MULTIMODE LOW POWER BUCK CONVERTER
SLUS446B – MAY 2000 – REVISED DECEMBER 2000
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
f – Frequency – Hz
1
10
100
1 k
10 k
100 k
1 M
10 M
100 M
–50
0
50
100
150
200
Gain
Phase
–
Degrees
–50
0
50
100
150
200
Gain
–
dB
–100
Figure 1. Error Amplifier Gain Phase Response
loop compensation and the TPS6210X series of converters
Feedback-loop compensation in the data sheet examples assumes that the output-filter capacitor is a
mulit-layer ceramic (MLC) type. With this type of output capacitor, the ESR zero will be too high in frequency
to use as part of the compensation network. This can complicate the loop compensation, especially in the
higher-switching frequency versions where error-amplifier bandwidth must be taken into consideration. A
typical PWM- and output-filter response plot is shown in Figure 2. Note the lightly-loaded circuit has a pair of
complex poles that cause the gain peaking and rapid-phase shift near the L-C resonant frequency.
The strategy that has been the best to date for designing a compensator for this circuit has been to use:
D an origin pole (no dc path from COMP to FB),
D a zero placed below the L-C resonance,
D a zero placed above the L-C resonance,
D and the remaining pole placed above the last zero.
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相关代理商/技术参数 |
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| TPS62101DRG4 | 功能描述:直流/直流开关调节器 Multimd 600kHz Sync Sync Buck Converter 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 |
| TPS62102D | 功能描述:直流/直流开关调节器 Multimode 1MHz Sync Sync Buck Converter 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 |
| TPS62102DG4 | 功能描述:直流/直流开关调节器 Multimode 1MHz Synch Buck Converter 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 |
| TPS62102DR | 功能描述:开关变换器、稳压器与控制器 Multimode 1MHz Sync Sync Buck Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS62102DRG4 | 功能描述:开关变换器、稳压器与控制器 Multimode 1MHz Sync Sync Buck Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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