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参数资料
| 型号： | L6730CTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | HTSSOP-20 |
| 文件页数： | 34/50页 |
| 文件大小： | 1486K |
| 代理商： | L6730CTR |
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Summary description
L6730C - L6730D
4/50
1
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 600mV with a maximum
tolerance of ±0.8% or to 1.2V, when one of the internal references is used. It is also possible to
use an external reference from 0V to 2.5V. The input voltage can range from 1.8V to 14V, while
the supply voltage can range from 4.5V to 14V. High peak current gate drivers provide for fast
switching to the external power section and the output current can be in excess of 20A,
depending on the number of the external MOSFETs used. The PWM duty cycle can range from
0% to 100% with a minimum on-time (TON, MIN) lower than 100ns making possible conversions
with very low duty cycle and very high switching frequency.
The device provides voltage-mode control. It includes a 400KHz free-running oscillator that is
adjustable from 100KHz to 1MHz. The error amplifier features a 10MHz gain-bandwidth-
product and 5V/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. A leading edge
adjustable blanking time is also available to avoid false over-current-protection (OCP)
interventions in every application condition. It is possible to select the HICCUP mode or the
constant current protection (L6730D) after the soft-start phase.
During the soft-start phase a constant current protection is provided. It is possible to select
(before the device turn-on) the sink-source or the source-only mode capability by acting on a
multifunction pin (L6730C). The L6730C disables the sink mode capability during the soft-start
in order to allow a proper start-up also in pre-biased output voltage conditions. The L6730D can
always sink current and so it can be used to supply the DDR Memory BUS termination. Other
features are Master-Slave synchronization (with 180° phase shift), Power-Good with adjustable
delay, over-voltage-protection, feed-back disconnection, selectable UVLO threshold (5V and
12V Bus) and thermal shutdown. The HTSSOP20 package allows the realization of really
compact DC/DC converters.
相关PDF资料 |
PDF描述 |
|---|---|
| L6730 | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| L6730B | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| L6730TR | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| L6732CTR | 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6732 | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6730D | 功能描述:IC REG CTRLR BUCK PWM VM 20TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:100% 电源电压:8.2 V ~ 30 V 降压:无 升压:无 回扫:是 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:0°C ~ 70°C 封装/外壳:8-DIP（0.300"，7.62mm） 包装:管件 产品目录页面:1316 (CN2011-ZH PDF) |
| L6730DTR | 功能描述:IC REG CTRLR BUCK PWM VM 20TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:100% 电源电压:8.2 V ~ 30 V 降压:无 升压:无 回扫:是 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:0°C ~ 70°C 封装/外壳:8-DIP（0.300"，7.62mm） 包装:管件 产品目录页面:1316 (CN2011-ZH PDF) |
| L6730TR | 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 |
| L6731B | 功能描述:开关变换器、稳压器与控制器 Adj. Step-Down w/ Synch Rectification 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 |
| L6731BTR | 功能描述:IC CTRLR ADJ STEP DOWN 16-TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
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