Datasheet > LM2630MTC-ADJX

LM2630MTC-ADJX

更新时间： 2024-11-23 14:52:27

品牌	Logo	应用领域
德州仪器 - TI		开关光电二极管
页数	文件大小	规格书
14页	373K
描述
SWITCHING CONTROLLER, 345kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, TSSOP-20

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LM2630MTC-ADJX 技术参数

生命周期：	Obsolete	包装说明：	SSOP,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.77
Is Samacsys：	N	其他特性：	OPERATES IN ADJUSTABLE MODE FROM 1.8 TO 6V
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER	控制模式：	CURRENT-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	30 V
最小输入电压：	4.5 V	标称输入电压：	10 V
JESD-30 代码：	R-PDSO-G20	长度：	6.5 mm
功能数量：	1	端子数量：	20
最高工作温度：	125 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, SHRINK PITCH
认证状态：	Not Qualified	座面最大高度：	1.1 mm
表面贴装：	YES	切换器配置：	PUSH-PULL
最大切换频率：	345 kHz	温度等级：	AUTOMOTIVE
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	宽度：	4.4 mm
Base Number Matches：	1

LM2630MTC-ADJX 数据手册

OBSOLETE

August 25, 2011

LM2630

Synchronous Step-Down Power Supply Controller

General Description

Features

The LM2630 controller provides all the active functions for

step-down (buck) switching converters. These dc-to-dc con-

verters provide core CPU power in battery-operated systems.

4.5V to 30V input range

■

Adjustable output (1.8V to 6V)

200 kHz to 400 kHz adjustable operating frequency

High efficiency is achieved by using synchronous rectification

and pulse-skipping mode operation at light load. Inexpensive

N-channel MOSFETs are used to reduce system cost. Boot-

strap circuit is used to drive the high-side N-channel MOS-

FET.

Externally synchronizable

On-board power good function

Precision 1.24V reference output

0.8 mA typical quiescent current

Current mode control scheme is used to improve line regula-

tion and transient response, also provides cycle-by-cycle cur-

rent limiting.

0.1 µA shutdown current

Thermal shutdown

Direct current limit protection

The operating frequency is adjustable between 200 kHz and

400 kHz. An external shutdown pin can be used to disable the

device and reduce the quiescent current to 0.1 µA. In low

noise applications, bringing the FPWM pin high can force the

device to operate in constant frequency mode. Other features

include the external synchronization pin, and the PGOOD pin

to indicate the state of the output voltage.

Input undervoltage lockout

Output Undervoltage shutdown protection

Programmable soft-start function

Tiny TSSOP package

Applications

Protection circuitry includes thermal shutdown, undervoltage

shut down, soft-start capability, and two levels of current lim-

its: The first level simply limits the load current directly; at the

second level, if the load pulls the output voltage down below

80% of the regulated value, the chip willshut down. This

latched operation is disabled during startup, but an internal

timer will enable it if the output does not come up in the preset

time.

Notebook and subnotebook computers

■

Cellular phones

Portable instruments

Battery-powered digital devices

Typical Application Circuit

10012001

100120

www.national.com

100120 Version 9 Revision 2 Print Date/Time: 2011/08/25 17:11:52

12 3 4 5 6 7...14

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与LM2630MTC-ADJX相关器件

型号	品牌	获取价格	描述	数据表
LM2630MTCX-ADJ	ROCHESTER	获取价格	SWITCHING CONTROLLER, 345kHz SWITCHING FREQ-MAX, PDSO20, TSSOP-20
LM2631	NSC	获取价格	Synchronous Step-Down Power Supply Controller
LM2631MTC-ADJ	NSC	获取价格	Synchronous Step-Down Power Supply Controller
LM2631MTC-ADJ/NOPB	TI	获取价格	SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO20
LM2631MTCX-ADJ/NOPB	TI	获取价格	SWITCHING CONTROLLER, 400kHz SWITCHING FREQ-MAX, PDSO20, TSSOP-20
LM2633	NSC	获取价格	Advanced Two-Phase Synchronous Triple Regulator Controller for Notebook CPUs
LM2633MTD	NSC	获取价格	Advanced Two-Phase Synchronous Triple Regulator Controller for Notebook CPUs
LM2633MTD/NOPB	ROCHESTER	获取价格	SWITCHING CONTROLLER, 275kHz SWITCHING FREQ-MAX, PDSO48, TSSOP-48
LM2635	NSC	获取价格	5-Bit Programmable Synchronous Buck Regulator Controller
LM2635M	NSC	获取价格	5-Bit Programmable Synchronous Buck Regulator Controller

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