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参数资料
| 型号： | L6722 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, QCC36 |
| 封装： | 6 X 6 MM, 1 MM PITCH, VFQFPN-36 |
| 文件页数： | 1/34页 |
| 文件大小： | 421K |
| 代理商： | L6722 |
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May 2006
Rev 1
1/34
34
L6722
3 Phase controller for DC/DC converters
Features
■ 2A integrated gate drivers
■ 0.8V reference
■ 1% output voltage accuracy
■ Adjustable reference offset
■ Precise current sharing and OCP across LS
MOSFETS
■ Constant over current protection
■ Feedback disconnection
■ LSLESS allows managing pre-bias startup
■ Preliminary of protection
■ Oscillator internally fixed at 100kHz, externally
adjustable
■ Power good
■ Integrated remote sense buffer
■ VFQFPN36 package with exposed pad
Applications
■ Memory supply for server and workstation MBs
■ High density DC / DC converters
■ High current pol
Description
L6722 implements a three-phase step-down
controller with 120 phase-shift between each
phase with integrated high-current drivers in a
compact VFQFPN36 package with exposed pad.
L6722 manages output voltages down to 0.8V
with ±1% output voltage accuracy over line and
temperature variations. Additional programmable
offset can be added to the reference voltage with
a single external resistor in order to perform
margining tests.
The controller assures fast protection against load
over current and over / under voltage. In case of
over-current the system works in Constant
Current mode until UVP. Preliminary OVP allows
full load protection in case of startup with failed
HS. Feedback-disconnection protection prevents
from damaging the load in case of misconnections
in the remote sense. Pre-bias start-up is also
managed thanks to LSLESS.
Combined use of DCR and RdsON current
sensing assures precision in voltage positioning
(by reading droop current across inductors DCR)
and safe current sharing and OCP per each
phase (by reading the current across LS RdsON).
Droop function can be anyway disabled to
perform precise and load-insensitive regulation.
VFQFPN36
Order codes
Part number
Package
Packing
L6722
VFQFPN36
Tube
L6722TR
VFQFPN36
Tape & Reel
Obsolete
Product(s)
- Obsolete
Product(s)
相关PDF资料 |
PDF描述 |
|---|---|
| L6722TR | SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, QCC36 |
| L9407F | SPECIALTY ANALOG CIRCUIT, PSFM8 |
| L9942 | STEPPER MOTOR CONTROLLER, PDSO36 |
| LA5681FN | SWITCHING CONTROLLER, 520 kHz SWITCHING FREQ-MAX, QCC48 |
| LB11620T | BRUSHLESS DC MOTOR CONTROLLER, 0.25 A, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6722TR | 功能描述:开关变换器、稳压器与控制器 3 Phase 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 |
| L6725 | 功能描述:开关变换器、稳压器与控制器 Vltg Mode PWM 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 |
| L6725_07 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Voltage mode PWM controller with bootstrap anti-discharging system |
| L6725A | 功能描述:开关变换器、稳压器与控制器 Vltg Mode PWM 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 |
| L6725ATR | 功能描述:开关变换器、稳压器与控制器 Step-Down 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 |
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