Datasheet > NCP1511/D

NCP1511/D

更新时间： 2024-09-19 23:53:23

品牌	Logo	应用领域
其他 - ETC		转换器
页数	文件大小	规格书
12页	77K
描述
PWM Buck Converter with a Very Low Iq During Low Load Conditions

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NCP1511/D 数据手册

NCP1511

Advance Information

PWM Buck Converter with a

Very Low Iq During Low

Load Conditions

The NCP1511 is a tri-mode regulator that operates either as a

Synchronized PWM Buck Converter, PWM Buck Converter with

internal oscillator or as a Pulsed Switching Regulator. If a

synchronization signal is present, the NCP1511 operates as a current

mode PWM converter with synchronous rectification. The optional

external frequency input signal allows the user to control the location

of the spurious frequency noise generated by a PWM converter. The

Pulsed Switching Regulator mode is active when the Sync Pin is

Low. The Pulsed Mode is an extremely low quiescent current Buck

Converter. NCP1511 operates in a PWM mode with an internal

oscillator when the Sync Pin is held high. The NCP1511

configuration allows the flexibility of efficient high power operation

and low input current during system sleep modes.

http://onsemi.com

MARKING

DIAGRAM

XXXX

9 PIN

YYWW

MICRO BUMP

FC SUFFIX

CASE 499E

XX = Device Code

YY = Year

WW = Work Week

Features

PIN CONNECTIONS

• Synchronous Rectification for Higher Efficiency in PWM Mode

• Pulsed Switching Mode Operation for Low Current Consumption at

Low Loads

Pin: A1. - GNDP

A2. - LX

• Integrated MOSFETs and Feedback Circuits

• Cycle-by-Cycle Current Limit

• Automatic Switching Between PWM, with External or Internal

Oscillator, and Pulsed Mode

• Operating Frequency Range of 450 to 1000 kHz

• Internal 1.0 MHz Oscillator

A3. - VCC

B1. - SYNC

B2. - GNDA

B3. - FB

C1. - SHD

C2. - CB1

C3. - CB0

• Thermal Limit Protection

(Bottom View)

• Built-in Slope Compensation for Current Mode PWM Converter

• 1.0, 1.3, 1.5, 1.89 Fixed Output Voltages

• Shutdown Current Consumption of 0.2 mA

• Pb Free Package for Green Manufacturing

Applications

ORDERING INFORMATION

Device

Package

Shipping

TBD

NCP1511FCT1G 9 Pin Pb Free

Micro Bump

• Cellular Phones and Pagers

• PDA

• Digital Cameras

• Supplies for DSP Cores

• Portable Applications

This document contains information on a new product. Specifications and information

herein are subject to change without notice.

Semiconductor Components Industries, LLC, 2003

Publication Order Number:

June, 2003 - Rev. 2

NCP1511/D

12 3 4 5 6 7...12

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与NCP1511/D相关器件

型号	品牌	获取价格	描述	数据表
NCP1511FCT1	ONSEMI	获取价格	Up to 500 mA, High Efficiency Synchronous Step-Down DC-DC Converter
NCP1511FCT1G	ONSEMI	获取价格	Up to 500 mA, High Efficiency Synchronous Step-Down DC-DC Converter
NCP1512/D	ETC	获取价格	PWM Buck Converter with a Very Low Iq During Low Load Conditions
NCP1512FCT1G	ONSEMI	获取价格	0.8A SWITCHING REGULATOR, 1240kHz SWITCHING FREQ-MAX, PBGA9, MICRO, BUMP-9
NCP1519	ONSEMI	获取价格	High Efficiency DC-DC Converters
NCP151AAMX180070TCG	ONSEMI	获取价格	LDO Regulator - Dual, High PSRR 300mA
NCP151AAMX180075TCG	ONSEMI	获取价格	LDO Regulator - Dual, High PSRR 300mA
NCP151AAMX280180TCG	ONSEMI	获取价格	LDO Regulator - Dual, High PSRR 300mA
NCP151AAMX330180TCG	ONSEMI	获取价格	LDO Regulator - Dual, High PSRR 300mA
NCP151CCMX280180TCG	ONSEMI	获取价格	LDO Regulator - Dual, High PSRR 300mA

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