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参数资料
| 型号： | L6732 |
| 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： | 32/37页 |
| 文件大小： | 898K |
| 代理商： | L6732 |
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Summary description
L6732
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Summary description
The controller is an integrated circuit realized in BCD5 (BiCMOS-DMOS, version 5)
fabrication that provides complete control logic and protection for high performance step-
down DC-DC and niPoL converters.
It is designed to drive N-channel MOSFETs in a synchronous rectified buck topology. The
output voltage of the converter can be precisely regulated down to 600 mV with a maximum
tolerance of ±0.8 % and it is also possible to use an external reference from 0 V to 2.5 V.
The input voltage can range from 1.8 V to 14 V, while the supply voltage can range from
4.5 V to 14 V. High peak current gate drivers provide for fast switching to the external power
section, and the output current can be in excess of 20 A. The PWM duty cycle can range
from 0 % to 100 % with a minimum on-time (TON, MIN) lower than 100 ns making possible
conversions with very low duty cycle at high switching frequency. The device provides
voltage-mode control that includes a selectable frequency oscillator (250 kHz or 500 kHz).
The error amplifier features a 10 MHz gain-bandwidth-product and 5 V/s slew-rate that
permits to realize high converter bandwidth for fast transient response. The device monitors
the current by using the RDS(on) of both the high-side and low-side MOSFET(s), eliminating
the need for a current sensing resistor and guaranteeing an effective over-current-protection
in all the application conditions. When necessary, two different current limit protections can
be externally set through two external resistors.
During the soft-start phase a constant current protection is provided while after the soft-start
the device enters in hiccup mode in case of over-current. During the soft-start, the sink
mode capability is disabled in order to allow a proper start-up also in pre-biased output
voltage conditions. After the soft-start the device can sink current. Other features are
power good, master/slave synchronization (with 180° phase shift), over-voltage-protection,
feed-back disconnection and thermal shutdown. The HTSSOP16 package allows the
realization of really compact DC/DC converters.
相关PDF资料 |
PDF描述 |
|---|---|
| L6732TR | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6732_08 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification |
| L6732_0906 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification |
| L6732C | 功能描述:DC/DC 开关控制器 Adjustable Step Down Controller 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 |
| L6732CTR | 功能描述:开关变换器、稳压器与控制器 Step-Dwn Controller 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 |
| L6732TR | 功能描述:DC/DC 开关控制器 VOLTAGE REGULATOR 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 |
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