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參數(shù)資料
| 型號： | NCP1500DMR2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Dual Mode PWM/Linear BUCK Converter |
| 中文描述： | 0.8 A SWITCHING REGULATOR, 630 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 87K |
| 代理商： | NCP1500DMR2 |
Semiconductor Components Industries, LLC, 2004
February, 2004 Rev. 4
1
Publication Order Number:
NCP1500/D
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
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 cyclebycycle current limit in the PWM mode. Additionally, the
converter transitions into PFM mode at very light loads if a
synchronization signal is present and an output overvoltage condition
is detected.
PWM Features
Current Mode Control with CyclebyCycle Current Limit
Nominal Synchronization Frequency of 270 to 630 kHz
Builtin Slope Compensation
Linear Regulator Features
Low Output Noise
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 A Typical
PbFree Package is Available
Typical Applications
Baseband Supplies for Portable Handsets
PDAs
Supplies for DSP Circuitry
Figure 1. Typical Operating Circuit
C
OUT
MBRM120
L
L = 15 H
C
IN
= 10 F
C
OUT
= 10 F
8
7
6
5
1
2
3
4
SHD
SYN
V
O
LX
CB0
CB1
GND
V
IN
V
IN
C
IN
8
7
6
5
1
2
3
4
Micro8
(MSOP8)
DM SUFFIX
CASE 846A
8
1
1
8
A = Assembly Location
Y = Year
W = Work Week
MARKING
DIAGRAM
PIN CONNECTIONS
SHD
SYN
V
O
LX
CB0
CB1
GND
V
IN
Device
Package
Shipping
ORDERING INFORMATION
NCP1500DMR2
Micro8
4000 Tape/Reel
(Top View)
1500
AYW
http://onsemi.com
NCP1500DMR2G
Micro8
(PbFree)
4000 Tape/Reel
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.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1500DMR2G | 功能描述:直流/直流開關轉換器 Dual Mode PWM Linear Buck RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| NCP1501DMR2 | 功能描述:直流/直流開關轉換器 Dual Mode Buck w/LDO RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| NCP1501DMR2G | 功能描述:直流/直流開關轉換器 Dual Mode Buck w/LDO RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| NCP1508MNR2 | 功能描述:直流/直流開關轉換器 High Efficiency Buck RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| NCP1508MNR2G | 功能描述:直流/直流開關轉換器 High Efficiency Buck Synchronous DC/DC RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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