参数资料
型号: L6732TR
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封装: LEAD FREE, HTSSOP-16
文件页数: 3/37页
文件大小: 898K
代理商: L6732TR
L6732
Device description
11/37
5
Device description
5.1
Oscillator
The switching frequency can be fixed to two values: 250 kHz or 500 kHz by setting the
proper voltage at the EAREF pin (see Table 4. pins function and section 4.3 Internal and
external reference).
5.2
Internal LDO
An internal LDO supplies the internal circuitry of the device. The input of this stage is the
VCC pin and the output (5 V) is the VCCDR pin (Figure 3.).
The LDO can be by-passed, providing directly a 5 V voltage to VCCDR. In this case VCC and
VCCDR pins must be shorted together as shown in Figure 4. VCCDR pin must be filtered with
at least 1 F capacitor to sustain the internal LDO during the recharge of the bootstrap
capacitor. VCCDR also represents a voltage reference for PGOOD pin (see Table 4. pins
function).
Figure 3.
LDO block diagram
LDO
4.5
÷14V
相关PDF资料
PDF描述
L6788ATR 3-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40
L6788A 3-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40
L6910A 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
L6910GTR 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
L6917BD SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO28
相关代理商/技术参数
参数描述
L6733 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Advanced modular synchronous PWM controller
L6733TR 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Advanced modular synchronous PWM controller
L6738 功能描述:电流型 PWM 控制器 Single-Phase SD Cont 5V to 12V bus 1.5V RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14
L6738A 功能描述:电流型 PWM 控制器 Single-phase PWM Light Load EFF RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14
L6738ATR 功能描述:电流型 PWM 控制器 Single Phase PWM CNTRL Light-Load EFF RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14