Datasheet > UCC1837_16

UCC1837_16

更新时间： 2024-11-29 02:58:47

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
8页	89K
描述
8-Pin N-FET Linear Regulator Controller

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

UCC1837_16 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

下载PDF

与UCC1837_16相关器件

型号	品牌	获取价格	描述	数据表
UCC1837D	TI	获取价格	IC,VOLT REGULATOR,ADJUSTABLE,+1.5 TO +12V,BICMOS,SOP,8PIN,PLASTIC
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