- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄363219 > NCP1450A (ON SEMICONDUCTOR) PWM Step-up DC-DC Controller PDF資料下載
參數(shù)資料
| 型號： | NCP1450A |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | PWM Step-up DC-DC Controller |
| 中文描述： | PWM升壓型DC - DC控制器 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 202K |
| 代理商： | NCP1450A |
Semiconductor Components Industries, LLC, 2003
April, 2003 - Rev. 5
1
Publication Order Number:
NCP1450A/D
NCP1450A
PWM Stepup DCDC
Controller
The NCP1450A series are PWM step-up DC-DC switching
controller that are specially designed for powering portable equipment
from one or two cells battery packs. The NCP1450A series have a
driver pin, EXT pin, for connecting to an external transistor. Large
output currents can be obtained by connecting a low ON-resistance
external power transistor to the EXT pin. The device will
automatically skip switching cycles under light load condition to
maintain high efficiency at light loads. With only six external
components, this series allows a simple means to implement highly
efficient converter for large output current applications.
Each device consists of an on-chip PWM (Pulse Width Modulation)
oscillator, PWM controller, phase-compensated error amplifier,
soft-start, voltage reference, and driver for driving external power
transistor. Additionally, a chip enable feature is provided to power
down the converter for extended battery life.
The NCP1450A device series are available in the TSOP-5 package
with five standard regulated output voltages. Additional voltages that
range from 1.8 V to 5.0 V in 100 mV steps can be manufactured.
Features
High Efficiency 86% at I
O
= 200 mA, V
IN
= 2.0 V, V
OUT
= 3.0 V
88% at I
O
= 400 mA, V
IN
= 3.0 V, V
OUT
= 5.0 V
Low Start-up Voltage of 0.9 V typical at I
O
= 1.0 mA
Operation Down to 0.6 V
Five Standard Voltages: 1.9 V, 2.7 V, 3.0 V, 3.3 V, 5.0 V with High
Accuracy
±
2.5%
Low Conversion Ripple
High Output Current up to 1000 mA
(3.0 V version at V
IN
= 2.0 V, L = 10 H, C
OUT
= 220
F)
Fixed Frequency Pulse Width Modulation (PWM) at 180 kHz
Chip Enable Pin with On-chip 150 nA Pull-up Current Source
Low Profile and Micro Miniature TSOP-5 Package
Typical Applications
Personal Digital Assistant (PDA)
Electronic Games
Portable Audio (MP3)
Digital Still Cameras
Handheld Instruments
TSOP-5
SN SUFFIX
CASE 483
See detailed ordering and shipping information in the ordering
information section on page 3 of this data sheet.
ORDERING INFORMATION
PIN CONNECTIONS AND
MARKING DIAGRAM
1
3
GND
CE
2
OUT
NC
4
EXT
5
x
(Top View)
xxx = Marking
Y
= Year
W
= Work Week
1
5
http://onsemi.com
相關PDF資料 |
PDF描述 |
|---|---|
| NCP1450ASN19T1 | PWM Step-up DC-DC Controller |
| NCP1450ASN27T1 | Circular Connector; No. of Contacts:5; Series:; Body Material:Aluminum Alloy; Connecting Termination:Solder; Connector Shell Size:14S; Circular Contact Gender:Pin; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:14S-5 RoHS Compliant: No |
| NCP1450ASN33T1 | PWM Step-up DC-DC Controller |
| NCP1450ASN50T1 | Circular Connector; No. of Contacts:6; Series:; Body Material:Aluminum Alloy; Connecting Termination:Solder; Connector Shell Size:14S; Circular Contact Gender:Pin; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:14S-6 RoHS Compliant: No |
| NCP1500 | Dual Mode PWM/Linear BUCK Converter |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1450A_EVM/3.0V | 制造商:ON Semiconductor 功能描述:NCV1450A Step-Up Application,3.0V Output |
| NCP1450ASN19T1 | 功能描述:直流/直流開關轉換器 1.9V 1A Boost 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 |
| NCP1450ASN19T1G | 功能描述:直流/直流開關轉換器 1.9V 1A Boost DC-DC PWM 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 |
| NCP1450ASN27T1 | 功能描述:直流/直流開關轉換器 2.7V 1A Boost 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 |
| NCP1450ASN27T1G | 功能描述:直流/直流開關轉換器 2.7V 1A Boost DC-DC PWM 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。