参数资料
| 型号： | NCP1571DG |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 8-SOIC |
| 产品变化通告： | Product Obsolescence 05/Oct/2010 |
| 标准包装： | 98 |
| PWM 型： | 电流/电压模式，V²? |
| 输出数： | 1 |
| 频率 - 最大： | 250kHz |
| 电源电压： | 11.4 V ~ 12.6 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
NCP1571
Low Voltage Synchronous
Buck Controller
The NCP1571 is a low voltage buck controller. It provides the
control for a DC?DC power solution producing an output voltage as
low as 0.980 V over a wide current range. The NCP1571?based
solution is powered from 12 V with the output derived from a 2?7 V
supply. It contains all required circuitry for a synchronous NFET buck
regulator using the V 2 t control method to achieve the fastest possible
transient response and best overall regulation. NCP1571 operates at a
fixed internal 200 kHz frequency and is packaged in an SOIC?8.
http://onsemi.com
MARKING
DIAGRAM
This device provides undervoltage lockout protection, Soft?Start,
Power Good with delay, and built?in adaptive non?overlap. During
undervoltage lockout, the NCP1571 controller allows the power
supply output to drift down, allowing the load time to shut off. This
8
1
SOIC?8
D SUFFIX
CASE 751
8
1571
ALYW
operation distinguishes the NCP1571 from other parts in its family.
Features
? Pb?Free Package is Available
? 0.980 V ± 1.0% Reference Voltage
? V 2 Control Topology
? 200 ns Transient Response
? Programmable Soft?Start
? Power Good
? Programmable Power Good Delay
? 40 ns Gate Rise and Fall Times (3.3 nF Load)
? Adaptive FET Non?Overlap Time
? Fixed 200 kHz Oscillator Frequency
? Undervoltage Lockout Holds Both Gate Outputs Low
? On/Off Control Through Use of the COMP Pin
? Overvoltage Protection through Synchronous MOSFETs
? Synchronous N?Channel Buck Design
? Dual Supply, 12 V Control, 2?7 V Power Source
1
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
PIN CONNECTIONS
1 8
V CC GND
PWRGD V FB
PGDELAY GATE(L)
COMP GATE(H)
ORDERING INFORMATION
Device Package Shipping ?
NCP1571D SOIC?8 98 Units/Rail
NCP1571DR2
NCP1571DR2G
SOIC?8
SOIC?8
2500 Tape & Reel
2500 Tape & Reel
(Pb?Free)
?For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
? Semiconductor Components Industries, LLC, 2004
October, 2004 ? Rev. 4
1
Publication Order Number
NCP1571/D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1571DR2 | 功能描述:DC/DC 开关控制器 Low Voltage RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| NCP1571DR2G | 功能描述:DC/DC 开关控制器 Low Voltage Synchronous Buck RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| NCP1573D | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| NCP1573DR2 | 功能描述:IC REG CTRLR BUCK PWM 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| NCP1575D | 功能描述:DC/DC 开关控制器 Low Voltage RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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