- 您现在的位置：买卖IC网 > PDF目录17380 > SP6652EB (Exar Corporation)EVAL BOARD FOR SP6652 PDF资料下载
参数资料
| 型号： | SP6652EB |
| 厂商： | Exar Corporation |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR SP6652 |
| 标准包装： | 1 |
| 系列： | * |
APPLICATIONS INFORMATION
over frequency f zero = 80kHz (from the
Bode plot) divided by the loop gain band -
width, given as 20kHz, which is used in the
following equation:
Error Amp Gain
= f zero / (loop gain bandwidth)
= 80kHz / 20kHz
=4
The error amp transconductance is about
1mS, so this sets the R Z resistor to be:
Rz = 4/1mS = 4KΩ
We will use R Z = 4KΩ for the 3.3V output
compensation.
The zero for loop compensation is placed
at the first modulator pole of 4 kHz to pro -
vide a loop response of -20/dB/decade at
the crossover frequency. The compensa -
tion capacitor Cc can be calculated from
the crossover frequency pole1 and the R Z
value:
C C = 1/(2π? R Z ?pole1) = 1/(2π? 4K ?4kHz)
= 10nF
From the Typical Performance Charac -
teristics load step curves, the 2.5V output
and 3.3V output are stable with R Z = 4KΩ
and C C = 10nF. For 1.8V to 0.85V output,
the values R Z = 2KΩ and C C = 10nF are
recommended.
Figure 4. Typical SP6652 circuit layout.
Oct10-07 RevJ
SP6652 1A, High Efficiency, Current Mode PWM Buck Regulator
0
? 2007 Sipex Corporation
相关PDF资料 |
PDF描述 |
|---|---|
| EBM10DTAH | CONN EDGECARD 20POS R/A .156 SLD |
| R1S8-153.3/P-R | CONV DC/DC 1W 15VIN 3.3VOUT |
| EBM10DTAD | CONN EDGECARD 20POS R/A .156 SLD |
| SP6127EB | EVAL BOARD FOR SP6127 |
| R1S8-1524/P-R | CONV DC/DC 1W 15VIN 24VOUT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6652ER | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:1A, High Efficiency, High Frequency Current Mode PWM Buck Regulator |
| SP6652ER/TR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:1A, High Efficiency, High Frequency Current Mode PWM Buck Regulator |
| SP6652ER-L | 功能描述:开关变换器、稳压器与控制器 2.8V-5.5V 1400kHz temp -40C to 85C 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 |
| SP6652ER-L/TR | 功能描述:开关变换器、稳压器与控制器 High Eff Synchronous Step-Down 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 |
| SP6652EU | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
发布紧急采购，3分钟左右您将得到回复。