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| 型号： | TPS54550PWP |
| 厂商： | Texas Instruments |
| 文件页数： | 17/31页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 6A 16HTSSOP |
| 产品培训模块： | Understanding SWIFT Step Down Dc/Dc Converters |
| 标准包装： | 90 |
| 系列： | SWIFT™ |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.9 V ~ 12 V |
| 输入电压： | 4.5 V ~ 20 V |
| 频率 - 开关： | 250kHz，500kHz |
| 电流 - 输出： | 6A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-HTSSOP |
| 产品目录页面： | 1029 (CN2011-ZH PDF) |
| 配用： | 296-19743-ND - EVALUATION MODULE FOR TPS54550 |
| 其它名称： | 296-19672-5 |
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SLVS623A – MARCH 2006 – REVISED APRIL 2006
Minimum recommended thermal vias: 4 x 0.013 dia. Inside
exposed PowerPAD area and 4 x 0.013 dia. Under device as
shown. Additional vias may be used if top side ground area is extended.
Minimum recommended exposed copper
area for PowerPAD. Some stencils may
require 10 percent larger area.
0.013 DIA
8 PL
0.040
Minimum recommended top
side Analog Ground area.
0.230
0.134
Connect Pin 10 AGND and Pin 11 PGND
to Analog Ground plane in this area for
optimum performance.
0.080
Figure 27. Thermal Considerations for PowerPAD Layout
MODEL FOR LOOP RESPONSE
TPS54550 control loop which can be modeled in a
circuit simulation program to check frequency
response and dynamic load response. The error
amplifier in the TPS54550 is a voltage amplifier with
80 dB (10000 V/V) of open-loop gain. The error
amplifier can be modeled using an ideal
voltage-controlled current source as shown in
The TPS54550 device has an integrated feed
forward compensation circuit which eliminates the
impact of the input voltage changes to the overall
loop transfer function.
The feed forward gain is modeled as an ideal
voltage- controlled voltage source with a gain of 8
V/V. The 1-mV ac voltage between nodes a and b
effectively breaks the control loop for the frequency
response measurements. Plotting b/c shows the
small-signal response of the power stage. Plotting
c/a shows the small-signal response of the frequency
compensation. Plotting a/b shows the small-signal
response of the overall loop. The dynamic load
response can be checked by replacing the R L with a
current source with the appropriate load step
amplitude and step rate in a time domain analysis.
17
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS54550PWP | 制造商:Texas Instruments 功能描述:PWM SWITCHER FET 6A O/P HTSSOP16 制造商:Texas Instruments 功能描述:PWM SWITCHER, FET 6A O/P, HTSSOP16 制造商:Texas Instruments 功能描述:PWM SWITCHER, FET 6A O/P, HTSSOP16; Primary Input Voltage:20V; No. of Outputs:1; Output Voltage:12V; Output Current:6A; Voltage Regulator Case Style:HTSSOP; No. of Pins:16; Operating Temperature Min:-40C; Operating Temperature ;RoHS Compliant: Yes |
| TPS54550PWPG4 | 功能描述:直流/直流开关调节器 4.5 to 20V Input 6A Step Down 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 |
| TPS54550PWPR | 功能描述:开关变换器、稳压器与控制器 4.5 to 20V Input 6A Step Down 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 |
| TPS54550PWPR/2801 | 功能描述:直流/直流开关调节器 4.5-20Vin,5A Sync SD 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 |
| TPS54550PWPRG4 | 功能描述:开关变换器、稳压器与控制器 4.5 to 20V Input 6A Step Down 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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