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參數(shù)資料
| 型號： | NCP1521BMUTBG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 MHz, 600 mA Step−Down DC−DC Converter |
| 中文描述： | 1.2 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 2 X 2 MM, 0.65 MM PITCH, LEAD FREE, UDFN-6 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 226K |
| 代理商： | NCP1521BMUTBG |
Semiconductor Components Industries, LLC, 2007
March, 2007
Rev. 0
1
Publication Order Number:
NCP1521B/D
NCP1521B
1.5 MHz, 600 mA
StepDown DCDC
Converter
High
Efficiency, Low Ripple, Adjustable
Output Voltage
The NCP1521B step
down PWM DC
DC converter is optimized
for portable applications powered from one cell Li
ion or three cell
Alkaline/NiCd/NiMH batteries. The part is available in adjustable
output voltage versions ranging from 0.9 V to 3.3 V. It uses
synchronous rectification to increase efficiency and reduce external
part count. The device also has a built
in 1.5 MHz (nominal)
oscillator which reduces component size by allowing smaller
inductors and capacitors. Automatic switching PWM/PFM mode
offers improved system efficiency.
Additional features include integrated soft
start, cycle
by
cycle
current limiting and thermal shutdown protection. The NCP1521B is
available in space saving, low profile TSOP5 and UDFN6 packages.
Features
Up to 96% Efficiency
Best
In
Class Ripple, including PFM Mode
Sources up to 600 mA
1.5 MHz Switching Frequency
Adjustable Output Voltage from 0.9 V to 3.3 V
Synchronous Rectification for Higher Efficiency
2.7 V to 5.5 V Input Voltage Range
Low Quiescent Current
Shutdown Current Consumption of 0.3 A
Thermal Limit Protection
Short Circuit Protection
All Pins are Fully ESD Protected
This is a Pb
Free Device
Typical Applications
Cellular Phones, Smart Phones and PDAs
Digital Still/Video Cameras
MP3 Players and Portable Audio Systems
Wireless and DSL Modems
Portable Equipment
USB Powered Devices
GND
2
VIN
1
EN
3
LX
5
FB
4
OFF ON
VIN
CIN
COUT
R1
R2
Cff
Figure 1. Typical Application
TSOP
5
L
VOUT
GND
2
EN
1
VIN
3
FB
6
GND
4
OFF ON
2.2 H R1
R2
4.7 F
VOUT
5
LX
VIN
18 pF
10 F
Figure 2. Typical Application
UDFN6
TSOP
5
SN SUFFIX
CASE 483
http://onsemi.com
MARKING
DIAGRAM
1
5
Device
Package
Shipping
ORDERING INFORMATION
NCP1521BSNT1G
TSOP
5
(Pb
Free)
3000/Tape & Reel
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
DBP
A
Y
W
= Specific Device Code
= Assembly Location
= Year
= Work Week
= Pb
Free Package
(Note: Microdot may be in either location)
1
5
DBPAYW
ZCM
1
2
3
6
5
4
UDFN6
MU SUFFIX
CASE 517AB
ZC
M
= Specific Device Code
= Date Code
= Pb
Free Package
(Note: Microdot may be in either location)
NCP1521BMUTBG
UDFN6
(Pb
Free)
3000/Tape & Reel
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PDF描述 |
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| NCP1521BSNT1G | 1.5 MHz, 600 mA Step−Down DC−DC Converter |
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| NCP1523B | 3 MHz, 600 mA, High-Efficiency, Adjustable Output Voltage Step-down Converter(3MHz, 600mA, 高效, 可調(diào)輸出電壓降壓轉(zhuǎn)換器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1521BSNT1G | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 STEP DWN DCDC CNVRTR 1.5MHz 600mA RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT |
| NCP1521UEVB | 功能描述:電源管理IC開發(fā)工具 ANA EVAL BRD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| NCP1522AEVB | 功能描述:電源管理IC開發(fā)工具 ANA EVAL BRD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| NCP1522ASNT1G | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 ANA LED DRIVER RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT |
| NCP1522BMUTBG | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 STEP DWN DCDC CNVRTR 3.0MHz 600mA RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)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(fēng)格:SMD/SMT |
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