Datasheet > LP3985IBL-4.8/NOPB

LP3985IBL-4.8/NOPB

更新时间： 2024-11-23 14:38:11

品牌	Logo	应用领域
德州仪器 - TI		输出元件调节器
页数	文件大小	规格书
17页	994K
描述
4.8 V FIXED POSITIVE LDO REGULATOR, 0.1 V DROPOUT, PBGA5

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LP3985IBL-4.8/NOPB 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	TFBGA,	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.64	最大回动电压 1：	0.1 V
最大输入电压：	6 V	最小输入电压：	2.5 V
JESD-30 代码：	R-PBGA-B5	长度：	1.463 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	5	工作温度TJ-Max：	125 °C
工作温度TJ-Min：	-40 °C	最大输出电流 1：	0.15 A
最大输出电压 1：	4.944 V	最小输出电压 1：	4.656 V
标称输出电压 1：	4.8 V	封装主体材料：	PLASTIC/EPOXY
封装代码：	TFBGA	封装形状：	RECTANGULAR
封装形式：	GRID ARRAY, THIN PROFILE, FINE PITCH	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度：	1.095 mm	表面贴装：	YES
技术：	CMOS	端子形式：	BALL
端子节距：	0.5 mm	端子位置：	BOTTOM
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	1.006 mm
Base Number Matches：	1

LP3985IBL-4.8/NOPB 数据手册

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August 2005

LP3985

Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS

Voltage Regulator

2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V. 3.1V, 3.2V, 3.3V, 4.7V,

General Description

4.75V, 4.8V and 5.0V output voltages. For other output volt-

The LP3985 is designed for portable and wireless applica-

age options between 2.5V to 5.0V or for a dual LP3985,

tions with demanding performance and space requirements.

please contact National Semiconductor sales office.

The LP3985 is stable with a small 1µF 30% ceramic or

high-quality tantalum output capacitor. The micro SMD re-

quires the smallest possible PC board area - the total appli-

cation circuit area can be less than 2.0mm x 2.5mm, a

fraction of a 1206 case size.

Key Specifications

n 2.5 to 6.0V input range

n 150mA guaranteed output

n 50dB PSRR at 1kHz V_IN= V_OUT+ 0.2V

The LP3985’s performance is optimized for battery powered

systems to deliver ultra low noise, extremely low dropout

voltage and low quiescent current. Regulator ground current

increases only slightly in dropout, further prolonging the

battery life.

n ≤1.5µA quiescent current when shut down

n Fast Turn-On time: 200 µs (typ.)

n 100mV maximum dropout with 150mA load

n 30µVrms output noise (typ) over 10Hz to 100kHz

n −40 to +125˚C junction temperature range for operation

n 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V, 3.2V,

3.3V, 4.7V, 4.75V, 4.8V and 5.0V outputs standard

An optional external bypass capacitor reduces the output

noise without slowing down the load transient response.

Fast start-up time is achieved by utilizing an internal

power-on circuit that actively pre-charges the bypass capaci-

tor.

Features

Power supply rejection is better than 50 dB at low frequen-

cies and starts to roll off at 1kHz. High power supply rejection

is maintained down to low input voltage levels common to

battery operated circuits.

n Miniature 5-I/O micro SMD and SOT-23-5 package

n Logic controlled enable

n Stable with ceramic and high quality tantalum capacitors

n Fast turn-on

n Thermal shutdown and short-circuit current limit

The device is ideal for mobile phone and similar battery

powered wireless applications. It provides up to 150 mA,

from a 2.5V to 6V input. The LP3985 consumes less than

1.5µA in disable mode and has fast turn-on time less than

200µs.

Applications

n CDMA cellular handsets

n Wideband CDMA cellular handsets

n GSM cellular handsets

The LP3985 is available in a 5 bump small bump micro SMD,

a 5 bump large bump micro SMD, a 5 bump thin micro SMD

and a 5 pin SOT-23 package. Performance is specified for

−40˚C to +125˚C temperature range and is available in 2.5V,

n Portable information appliances

Typical Application Circuit

10136402

Note: Pin Numbers in parenthesis indicate micro SMD package.

* Optional Noise Reduction Capacitor.

DS101364

www.national.com

12 3 4 5 6 7...17

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与LP3985IBL-4.8/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LP3985IBL-5.0	NSC	获取价格	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBL-5.0/NOPB	TI	获取价格	5V FIXED POSITIVE LDO REGULATOR, 0.1V DROPOUT, PBGA5, 0.995 MM HEIGHT, MICRO, SMD-5
LP3985IBLX-2.5	NSC	获取价格	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-2.5/NOPB	TI	获取价格	2.5V FIXED POSITIVE LDO REGULATOR, 0.1V DROPOUT, PBGA5, 0.995 MM HEIGHT, MICRO, SMD-5
LP3985IBLX-2.6	NSC	获取价格	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-2.6/NOPB	TI	获取价格	2.6 V FIXED POSITIVE LDO REGULATOR, 0.1 V DROPOUT, PBGA5
LP3985IBLX-2.7	NSC	获取价格	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-2.8	NSC	获取价格	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator
LP3985IBLX-2.85	ETC	获取价格	VOLT REGULATOR\|FIXED\|+2.85V\|CMOS\|BGA\|5PIN\|PLASTIC
LP3985IBLX-2.9	NSC	获取价格	Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator

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