L6911CTR

更新时间： 2024-11-09 03:49:55

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		控制器
页数	文件大小	规格书
20页	352K
描述
5 BIT PROGRAMMABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION

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中文翻译

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技术参数
数据手册

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L6911CTR 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	SO-20
针数：	20	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.81	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制模式：	VOLTAGE-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	12 V	最小输入电压：	5 V
标称输入电压：	12 V	JESD-30 代码：	R-PDSO-G20
JESD-609代码：	e0	长度：	12.8 mm
功能数量：	1	端子数量：	20
最大输出电流：	1.3 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	座面最大高度：	2.65 mm
表面贴装：	YES	切换器配置：	PUSH-PULL
最大切换频率：	1000 kHz	端子面层：	TIN LEAD
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7.5 mm	Base Number Matches：	1

L6911CTR 数据手册

L6911C

5 BIT PROGRAMMABLE STEP DOWN CONTROLLER

WITH SYNCHRONOUS RECTIFICATION

■

OPERATING SUPPLY IC VOLTAGE FROM 5V

TO 12V BUSES

■

UP TO 1.3A GATE CURRENT CAPABILITY

TTL-COMPATIBLE 5 BIT PROGRAMMABLE

OUTPUT COMPLIANT WITH VRM 8.4 :

1.3V TO 2.05V WITH 0.05V BINARY STEPS

SO-20

2.1V TO 3.5V WITH 0.1V BINARY STEPS

VOLTAGE MODE PWM CONTROL

EXCELLENT OUTPUT ACCURACY: ±1%

ORDERING NUMBERS: L6911C

■

L6911CTR (Tape and Reel)

OVER LINE AND TEMPERATURE

DESCRIPTION

VARIATIONS

The device is a power supply controller specifically de-

VERY FAST LOAD TRANSIENT RESPONSE:

■

signed to provide a high performance DC/DC conver-

sion for high current microprocessors. A precise 5-bit

digital to analog converter (DAC) allows adjusting the

output voltage from 1.30V to 2.05V with 50mV binary

steps and from 2.10V to 3.50V with 100mV binary steps.

FROM 0% TO 100% DUTY CYCLE

POWER GOOD OUTPUT VOLTAGE

OVERVOLTAGE PROTECTION AND

MONITOR

■

OVERCURRENT PROTECTION REALIZED

USING THE UPPER MOSFET'S R

200KHz INTERNAL OSCILLATOR

dsON

The high precision internal reference assures the se-

lected output voltage to be within ±1%. The high peak

current gate drive affords to have fast switching to the

external power mos providing low switching losses.

■

OSCILLATOR EXTERNALLY ADJUSTABLE

FROM 50KHz TO 1MHz

SOFT START AND INHIBIT FUNCTIONS

■

The device assures a fast protection against load

overcurrent and load overvoltage. An external SCR is

triggered to crowbar the input supply in case of hard

over-voltage. An internal crowbar is also provided

turning on the low side mosfet as long as the over-

voltage is detected. In case of over-current detection,

the soft start capacitor is discharged and the system

works in HICCUP mode.

APPLICATIONS

■

POWER SUPPLY FOR ADVANCED

MICROPROCESSOR CORE

DISTRIBUTED POWER SUPPLY

HIGH POWER DC-DC REGULATORS

■

BLOCK DIAGRAM

Vcc 5 to 12V

Vin 5V to12V

VCC

OCSET

PGOOD

BOOT

MONITOR and

PROTECTION

UGATE

OVP

1.300V to 3.500V

PHASE

LGATE

PGND

GND

OSC

VD0

VD1

VD2

VD3

VD4

D/A

PWM

VSEN

VFB

E/A

D01IN1260

COMP

November 2001

1/20

12 3 4 5 6 7...20

中文翻译

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与L6911CTR相关器件

型号	品牌	获取价格	描述	数据表
L6911D	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION
L6911DTR	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION
L6911E	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION
L6911E_07	STMICROELECTRONICS	获取价格	5-Bit programmable step down controller with synchronous rectification
L6911ETR	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION
L6917	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
L6917B	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
L6917BD	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
L6917BDTR	STMICROELECTRONICS	获取价格	5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
L6917D	ETC	获取价格	Analog IC

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