Datasheet > 电源电路 > 开关式稳压器或控制器> LM26480SQX-AA

LM26480SQX-AA

更新时间： 2024-11-23 04:44:39

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器开关
页数	文件大小	规格书
30页	2394K
描述
Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulators

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

LM26480SQX-AA 数据手册

January 15, 2008

LM26480

Externally Programmable Dual High-Current Step-Down

DC/DC and Dual Linear Regulators

Linear Regulators (LDO)

General Description

V_OUTof 1.0V–3.5V

■

The LM26480 is a multi-functional Power Management Unit,

±3% FB voltage accuracy

optimized for low-power digital applications. This device inte-

300 mA output current

grates two highly efficient 1.5A step-down DC/DC converters

and two 300 mA linear regulators. The LM26480 is offered in

a tiny 4 x 4 x 0.8mm LLP-24 pin package.

25 mV (typ) dropout

Features

Key Specifications

Compatible with advanced applications processors and

■

FPGAs

Step-Down DC/DC Converter (Buck)

2 LDOs for powering Internal processor functions and I/Os

■

1.5A output current

■

Precision internal reference

V_OUTfrom:

Thermal overload protection

Buck1 : 0.8V–2.0V @ 1.5A

Buck2 : 1.0V–3.3V @ 1.5A

—

Current overload protection

24-lead 4 × 4 × 0.8mm LLP package

Up to 96% efficiency

■

External Power-On-Reset function for Buck1 and Buck2

±3% FB voltage accuracy

Undervoltage lock-out detector to monitor input supply

voltage

2 MHz PWM switching frequency

PWM - PFM automatic mode change under low loads

Automatic soft start

Applications

Core digital power

■

Applications processors

Peripheral I/O power

Typical Application Circuit

30040401

300404

www.national.com

12 3 4 5 6 7...30

中文翻译

下载PDF

与LM26480SQX-AA相关器件

型号	品牌	获取价格	描述	数据表
LM26480SQX-AA/NOPB	ROCHESTER	获取价格	2.4A DUAL SWITCHING CONTROLLER, 2400kHz SWITCHING FREQ-MAX, QCC24, 4 X 4 MM, 0.80 MM HEIGH
LM26480SQX-AA/NOPB	TI	获取价格	LM26480 Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulat
LM26480SQX-BF	NSC	获取价格	Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulators
LM26480SQX-BF/NOPB	TI	获取价格	LM26480 Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulat
LM26484	NSC	获取价格	Power Management Unit
LM26484	TI	获取价格	两个直流/直流转换器和一个 LDO 可配置 PMIC
LM26484SQ	NSC	获取价格	Power Management Unit
LM26484SQ/NOPB	NSC	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC24, 5 X 4 MM, 0.80 MM HEIGHT, LLP-24, Power Mana
LM26484SQ/NOPB	TI	获取价格	两个直流/直流转换器和一个 LDO 可配置 PMIC \| NHZ \| 24 \| -40 t
LM26484SQE	NSC	获取价格	Power Management Unit