Datasheet > LM2636MTC/NOPB

LM2636MTC/NOPB

更新时间： 2024-11-26 14:52:27

品牌	Logo	应用领域
德州仪器 - TI		信息通信管理开关光电二极管
页数	文件大小	规格书
19页	528K
描述
SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, TSSOP-20

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LM2636MTC/NOPB 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	TSSOP,	针数：	20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	1 week
风险等级：	5.2	Is Samacsys：	N
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：	5.5 V
最小输入电压：	4.5 V	标称输入电压：	5 V
JESD-30 代码：	R-PDSO-G20	JESD-609代码：	e3
长度：	6.5 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	20
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	1.2 mm	表面贴装：	YES
切换器配置：	PUSH-PULL	最大切换频率：	2000 kHz
技术：	BICMOS	温度等级：	COMMERCIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	4.4 mm
Base Number Matches：	1

LM2636MTC/NOPB 数据手册

OBSOLETE

LM2636

www.ti.com

SNVS024D –OCTOBER 1999–REVISED APRIL 2013

LM2636 5-Bit Programmable Synchronous Buck Regulator Controller

Check for Samples: LM2636

FEATURES

DESCRIPTION

The LM2636 is a high speed controller designed

specifically for use in synchronous DC/DC buck

converters for advance d microprocessors. A 5-bit

DAC accepts the VID code directly from the CPU and

adjusts the output voltage from 1.3V to 3.5V. It

provides the power good, over-voltage protection,

and output enable features as required by Intel VRM

specifications. Current limiting is achieved by

monitoring the voltage drop across the r_{DS_ON}of the

high side MOSFET, which eliminates an expensive

current sense resistor.

•

1.3V to 3.5V 5-Bit Programmable Output

Voltage

•

Synchronous Rectification

Power Good Flag and Output Enable

Over-Voltage Protection

Initial Output Accuracy: 1.5% Over

Temperature

•

Current Limit without External Sense Resistor

Adaptive Non-Overlapping MOSFET Gate

Drives

The LM2636 employs a fixed-frequency voltage mode

PWM architecture. To provide a faster response to a

large and fast load transient, two ultra-fast

comparators are built in to monitor the output voltage

and override the primary control loop when

necessary. The PWM frequency is adjustable from 50

kHz to 1 MHz through an external resistor. The wide

range of PWM frequency gives the power supply

designer the flexibility to make trade-offs between

load transient response performance, MOSFET cost

and the overall efficiency. The adaptive non-

overlapping MOSFET gate drivers help avoid any

potential shoot-through problem while maintaining

high efficiency. BiCMOS gate drivers with rail-to-rail

swing ensure that no spurious turn-on occur. When

only 5V is available, a bootstrap structure can be

employed to accommodate an NMOS high side

switch. The precision reference trimmed to 2.5% over

temperature is available externally for use by other

regulators. Dynamic positioning of load voltage, which

helps cut the number of output capacitors, can also

be implemented easily.

•

Adjustable Switching Frequency: 50 kHz to

1 MHz

•

Dynamic Output Voltage Positioning

1.256V Reference Voltage Available Externally

Plastic SOIC-20 Package and TSSOP-20

Package

APPLICATIONS

•

Motherboard Power Supply/VRM for Cyrix

Gxm, Cyrix Gxi, Cyrix MII, Pentium II, Pentium

Pro, 6x86 and K6 Processors

•

5V to 1.3V–3.5V High Current Power Supplies

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Pentium is a trademark of Intel Corporation.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...19

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与LM2636MTC/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM2636MTCX	ETC	获取价格	Voltage-Mode SMPS Controller
LM2636MTCX/NOPB	ROCHESTER	获取价格	SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, TSSOP-20
LM2636MTCX/NOPB	TI	获取价格	SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, TSSOP-20
LM2636MWC	NSC	获取价格	IC SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator or C
LM2636MX	ETC	获取价格	Voltage-Mode SMPS Controller
LM2636MX/NOPB	TI	获取价格	SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, SOP-20
LM2637	NSC	获取价格	Motherboard Power Supply Solution with a 5-Bit Programmable Switching Controller and Two L
LM2637M	NSC	获取价格	Motherboard Power Supply Solution with a 5-Bit Programmable Switching Controller and Two L
LM2637M	ROCHESTER	获取价格	SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO24, SOIC-24
LM2637M/NOPB	TI	获取价格	SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO24, SOIC-24

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