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| 型号： | NCP1500DMR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC REG SGL BUCK/LINEAR 8MICRO |
| 产品变化通告： | Product Obsolescence 01/Jul/2009 |
| 标准包装： | 1 |
| 拓扑： | 降压（降压）（1），线性（LDO）（1） |
| 功能： | 任何功能 |
| 输出数： | 1 |
| 频率 - 开关： | 270kHz ~ 639kHz |
| 电压/电流 - 输出 1： | 1V，1.3V，1.5V，1.8V，- |
| 带 LED 驱动器： | 无 |
| 带监控器： | 无 |
| 带序列发生器： | 无 |
| 电源电压： | 2.7 V ~ 5.4 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | Micro8? |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP1500DMR2GOSCT |
NCP1500
Dual Mode PWM/Linear
BUCK Converter
The NCP1500 is a dual mode converter that operates as either a
pulse width modulated (PWM) buck converter or as a linear regulator.
The converter automatically transitions between the two modes. The
converter operates as a PWM when a synchronization signal is present
at the sync input. The converter operates as a linear regulator in the
http://onsemi.com
absence of a synchronization signal. The PWM mode offers excellent
performance at normal to heavy loads at the sacrifice of output ripple
voltage. The linear mode offers excellent noise rejection at the
sacrifice of system efficiency. The user is able to select which mode
will give the best performance for a given operating condition.
Internal protection features include thermal shutdown with hysteresis
and cycle ? by ? cycle current limit in the PWM mode. Additionally, the
converter transitions into PFM mode at very light loads if a
8
1
Micro8 t
(MSOP ? 8)
DM SUFFIX
CASE 846A
MARKING
DIAGRAM
8
1500
AYW G
G
1
synchronization signal is present and an output overvoltage condition
is detected.
PWM Features
? Current Mode Control with Cycle ? by ? Cycle Current Limit
? Nominal Synchronization Frequency of 270 to 630 kHz
? Built ? in Slope Compensation
A = Assembly Location
Y = Year
W = Work Week
G = Pb ? Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
Linear Regulator Features
? Low Output Noise
SHD
SYN
1
2
8
7
CB0
CB1
Overall Features
? Thermal Shutdown with Hysteresis
? Digitally Programmable Output Voltage Between 4 Voltages:
1.0, 1.3, 1.5, and 1.8
? Fast Transient Response
? Input Voltage Range From 2.7 V to 5.4 V
? Space Saving Micro8 Package
? Low Shutdown Current of 0.18 m A Typical
? Pb ? Free Package is Available
Typical Applications
? Baseband Supplies for Portable Handsets
? PDAs
? Supplies for DSP Circuitry
V O 3 6 GND
LX 4 5 V IN
(Top View)
ORDERING INFORMATION
Device Package Shipping ?
NCP1500DMR2 Micro8 4000 Tape/Reel
NCP1500DMR2G Micro8 4000 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.
1 SHD
2 SYN
3 V O
CB0
CB1
GND
8
7
6
L
C OUT
4 LX
MBRM120
V IN
5
C IN
V IN
L = 15 m H
C IN = 10 m F
C OUT = 10 m F
Figure 1. Typical Operating Circuit
? Semiconductor Components Industries, LLC, 2010
November, 2010 ? Rev. 5
1
Publication Order Number:
NCP1500/D
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| NCP1508MNR2G | 功能描述:直流/直流开关转换器 High Efficiency Buck Synchronous DC/DC RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| NCP1509MNR2 | 功能描述:直流/直流开关转换器 High Efficiency Buck RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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