LP38513

更新时间： 2024-11-14 04:44:07

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器
页数	文件大小	规格书
14页	398K
描述
3A Fast Response Ultra Low Dropout Linear Regulator

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LP38513 数据手册

July 2007

LP38513

3A Fast Response Ultra Low Dropout Linear Regulator

General Description

Features

The LP38513 fast response ultra low dropout linear regulator

operates from a +2.25V to +5.50V input supply. This ultra low

dropout linear regulator responds very quickly to step

changes in line or load conditions, which makes it suitable for

low voltage microprocessor applications. Developed on a

CMOS process, with a PMOS pass transistor, the LP38513

has low quiescent current operation that is independent of the

output load current.

Conversions from 2.5V rail to 1.8V

■

Stable with ceramic capacitors

Low ground pin current

Load regulation of 0.1% for 10 mA to 3A load current

60 μA typical quiescent current in shutdown mode

Guaranteed output current of 3A

■

Available in TO220-5 and TO263-5 packages

Ground Pin Current: Typically 12 mA at 3A load current.

Disable Mode: Typically 60 µA quiescent current when the

Enable pin is pulled low.

Guaranteed V_OUTaccuracy of ±2.6% with T_Jfrom 0°C to

+125°C

ERROR flag indicates V_OUTstatus

■

ERROR Flag: The ERROR Flag goes low if V_OUTfalls more

than typically 15% below the nominal value.

Over-Temperature and Over-Current protection

−40°C to +125°C operating T_Jrange

Precision Output Voltage: A guaranteed V_OUTaccuracy of

±2.6% with T_Jfrom 0°C to 125°C.

Applications

Microprocessor power supplies

■

GTL, GTL+, BTL, and SSTL bus terminators

Power supplies for DSPs

SCSI terminator

Post regulators

Battery chargers

Other battery powered applications

■

Typical Application Circuit

20146801

201468

www.national.com

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与LP38513相关器件

型号	品牌	获取价格	描述	数据表
LP38513-ADJ	NSC	获取价格	3A Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator
LP38513-ADJ	TI	获取价格	具有低噪声和使能功能的 3A、可调节超低压降稳压器
LP38513S-1.8	NSC	获取价格	3A Fast Response Ultra Low Dropout Linear Regulator
LP38513S-1.8/NOPB	NSC	获取价格	IC VREG 1.8 V FIXED POSITIVE LDO REGULATOR, 0.425 V DROPOUT, PSSO5, TO-263, 5 PIN, Fixed P
LP38513S-1.8/NOPB	TI	获取价格	具有电源正常指示和使能功能的 3A 超低压降稳压器，1.8V 输出 \| KTT \| 5 \|
LP38513SX-1.8	NSC	获取价格	3A Fast Response Ultra Low Dropout Linear Regulator
LP38513SX-1.8/NOPB	TI	获取价格	具有电源正常指示和使能功能的 3A 超低压降稳压器，1.8V 输出 \| KTT \| 5 \|
LP38513T-1.8	NSC	获取价格	3A Fast Response Ultra Low Dropout Linear Regulator
LP38513T-1.8/NOPB	TI	获取价格	具有电源正常指示和使能功能的 3A 超低压降稳压器，1.8V 输出 \| NDH \| 5 \|
LP38513TJ-ADJ	NSC	获取价格	3A Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator