Datasheet > UCC1837D

UCC1837D

更新时间： 2024-11-29 08:00:07

品牌	Logo	应用领域
德州仪器 - TI		信息通信管理光电二极管
页数	文件大小	规格书
8页	87K
描述
IC,VOLT REGULATOR,ADJUSTABLE,+1.5 TO +12V,BICMOS,SOP,8PIN,PLASTIC

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UCC1837D 技术参数

生命周期：	Obsolete	包装说明：	SOP, SOP8,.3
Reach Compliance Code：	unknown	风险等级：	5.84
模拟集成电路 - 其他类型：	ANALOG CIRCUIT	JESD-30 代码：	R-PDSO-G8
端子数量：	8	最高工作温度：	125 °C
最低工作温度：	-55 °C	最大输出电压：	12 V
最小输出电压：	1.5 V	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装等效代码：	SOP8,.3
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	子类别：	Other Analog ICs
表面贴装：	YES	技术：	BICMOS
温度等级：	MILITARY	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
Base Number Matches：	1

UCC1837D 数据手册

UCC1837

UCC2837

UCC3837

8-Pin N-FET Linear Regulator Controller

FEATURES

DESCRIPTION

• On Board Charge Pump to Drive

External N-MOSFET

The UCC3837 Linear Regulator Controller includes all the features re-

quired for an extremely low dropout linear regulator that uses an external

N-channel MOSFET as the pass transistor. The device can operate from

input voltages as low as 3V and can provide high current levels, thus pro-

viding an efficient linear solution for custom processor voltages, bus ter-

mination voltages, and other logic level voltages below 3V. The on board

charge pump creates a gate drive voltage capable of driving an external

N-MOSFET which is optimal for low dropout voltage and high efficiency.

The wide versatility of this IC allows the user to optimize the setting of

both current limit and output voltage for applications beyond or between

standard 3-terminal linear regulator ranges.

• Input Voltage as Low as 3V

• Duty Ratio Mode Over Current

Protection

• Extremely Low Dropout Voltage

• Low External Parts Count

• Output Voltages as Low as 1.5V

This 8-pin controller IC features a duty ratio current limiting technique that

provides peak transient loading capability while limiting the average

power dissipation of the pass transistor during fault conditions. See the

Application Section for detailed information.

BLOCK DIAGRAM

VDD

CAP

CHARGE

PUMP

LEVEL

SHIFT

VOUT

CURRENT SENSE

AMPLIFIER

ERROR AMPLIFIER

140mV

UVLO

1.5V REF

CURRENT SENSE

COMPARATOR

100mV

GND

TIMER

COMP

UDG-99145

SLUS228A - AUGUST 1999

12 3 4 5 6 7 8

中文翻译

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与UCC1837D相关器件

型号	品牌	获取价格	描述	数据表
UCC1837DR	TI	获取价格	IC,VOLT REGULATOR,ADJUSTABLE,+1.5 TO +12V,BICMOS,SOP,8PIN,PLASTIC
UCC1839	TI	获取价格	Secondary Side Average Current Mode Controller
UCC1839J	TI	获取价格	0.01A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, CDIP14, CERAMIC, DIP-14
UCC1839N	TI	获取价格	SWITCHING CONTROLLER, PDIP14, DIP-14
UCC18500	TI	获取价格	BiCMOS PFC/PWM Combination Controller
UCC18500DW	TI	获取价格	暂无描述
UCC18500J	TI	获取价格	1A POWER FACTOR CONTROLLER, 250kHz SWITCHING FREQ-MAX, CDIP20, CERAMIC, DIP-20
UCC18500N	TI	获取价格	1A POWER FACTOR CONTROLLER, PDIP20, PLASTIC, DIP-20
UCC18501	TI	获取价格	BiCMOS PFC/PWM Combination Controller
UCC18501DWTR	TI	获取价格	暂无描述

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