Datasheet > LP38869

LP38869

更新时间： 2024-09-22 01:05:51

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
23页	1161K
描述
1A FlexCap, Low-Dropout Linear Regulator with 0.75% Accuracy

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

LP38869 数据手册

LP38869

www.ti.com

SNVS877B –AUGUST 2012–REVISED APRIL 2013

LP38869 1A FlexCap, Low-Dropout Linear Regulator with 0.75% Accuracy

Check for Samples: LP38869

FEATURES

DESCRIPTION

The LP38869 low-dropout linear regulator operates

with an input voltage supply from +2.7V to +5.5V

input, and delivers a specified 1A load current with a

low 200 mV dropout. The high 50 dB PSRR at 100

kHz results from a high gain control loop that also

yields excellent transient response. Coupled with a

•

Operating Input Supply Range: +2.7V to + 5.5V

Maximum Continuous Output Current: 1A

Preset Output Voltage of 2.5V, or Adjustable

Output Voltage From 0.8V to 5.0V

•

Pre-Set Output Initial V_OUTTolerance ±0.5%

Adjustable V_REFTolerance of ±0.75%

PSRR of 50dB at 100kHz

high accuracy output voltage, ±0.75

over

temperature, the LP38869 is an ideal power supply

for FPGAs, DSPs or MCUs. Output voltage is preset

at +2.5V, or may be adjustable between +0.8V to +5V

with an external resistor divider.

Low 200 mV Dropout at 1A

Typical 2 µA Supply Current in Shutdown

Mode

The LP38869 only needs 1 μF output capacitance for

stability. The FlexCap compensation allows the use of

any type of output capacitor, regardless of ESR.

Other features include: Soft-Start; delayed reset

output; low-power shutdown; short-circuit protection;

and thermal shutdown protection

•

Adjustable Soft-Start for Output Current

Fold-Back Output Current Limit

Stable With Ceramic, Tantalum, or Aluminum

Capacitors

•

Stable With 1uF Input/Output Capacitors

Thermal Shutdown

Ground Pin Current: Typically less than 1 mA at 1A

load

16-pin HTSSOP Package

Shutdown Mode: Typically 2 µA quiescent current

when the SHDN pin is pulled low.

APPLICATIONS

Simplified Compensation: Stable with any type of

output capacitor.

•

DSA, FPGA and MCU Power Supply

SMPS Post-Regulator

Applications Requiring Sequencing

Gibabit SERDES Termination Supply

Typical Application Circuit

OUT

1 mF

LP38869

OUT

RST

SET

GND

RESET

ON-

OFF-

SHDN

DAP

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.

All 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...23

中文翻译

下载PDF

与LP38869相关器件

型号	品牌	获取价格	描述	数据表
LP38869_15	TI	获取价格	1A FlexCap, Low-Dropout Linear Regulator with 0.75% Accuracy
LP38869MH/NOPB	TI	获取价格	1A FlexCap, Low-Dropout Linear Regulator with 0.75% Accuracy
LP38869MHE/NOPB	TI	获取价格	1A FlexCap, Low-Dropout Linear Regulator with 0.75% Accuracy
LP38869MHX/NOPB	TI	获取价格	1A FlexCap, Low-Dropout Linear Regulator with 0.75% Accuracy
LP388F1YCHT	CTS	获取价格	Parallel - Fundamental Quartz Crystal, 38.88MHz Nom,
LP388FYXCBT	CTS	获取价格	Parallel - Fundamental Quartz Crystal, 38.88MHz Nom,
LP3891	NSC	获取价格	0.8A Fast-Response Ultra Low Dropout Linear
LP3891	TI	获取价格	LP3891 0.8A Fast-Response Ultra Low Dropout Linear Regulators
LP3891EMR-1.2	NSC	获取价格	IC VREG 1.216 V FIXED POSITIVE LDO REGULATOR, 0.43 V DROPOUT, PDSO8, MOLDED, PSOP-8, Fixed
LP3891EMR-1.2	TI	获取价格	LP3891 0.8A Fast-Response Ultra Low Dropout Linear Regulators

与LP38869相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

34
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

31
SL74HC10N：高性能三输入与非门解析
2024-09-03

104
AIC1781A 电池充电控制器深度解析
2024-09-03

100

产品中心

服务支持

精选活动

关于我们

帮助中心

LP38869

LP38869 数据手册

与LP38869相关器件

与LP38869相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LP38869

LP38869 数据手册

与LP38869相关器件

与LP38869相关文章

您还可以找

您在本页遇到什么问题？