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參數(shù)資料
| 型號： | NCP1550 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 600 kHz PWM/PFM Step-Down DC-DC Controller(600KHzPWM/PFM降壓DC-DC控制器) |
| 中文描述： | 600千赫的PWM / PFM升壓型DC - DC控制器（600KHzPWM/PFM降壓型DC - DC控制器） |
| 文件頁數(shù)： | 1/18頁 |
| 文件大小： | 191K |
| 代理商： | NCP1550 |
Semiconductor Components Industries, LLC, 2004
September, 2004 Rev. 6
1
Publication Order Number:
NCP1550/D
NCP1550
600 kHz PWM/PFM
StepDown DCDC
Controller
The NCP1550 is a monolithic micropower high frequency
voltage mode stepdown controller IC, specially designed for battery
operated handheld electronic products. With appropriate external
Ptype MOSFET, the device can provide up to 2.0 A loading
current with high conversion efficiency. The device operates in
ConstantFrequency PWM mode at normal operation, that ensures
low output ripple noise, and which will automatically switch to PFM
mode at low output loads for higher efficiency. Additionally,
valueadded features of Chip Enable to reduce IC OffState current
and integrated feedback resistor network, make it the best choice for
portable applications. The device is designed to operate for voltage
regulation with minimum external components and board space. This
device is available in a TSOP5 package with six standard output
voltage options.
Features
PbFree Packages are Available
High Efficiency 92%, Typical
Low Quiescent Bias Current of 50 A (Typical at PFM Mode with
No Load)
Output Voltage Options from 1.8 V to 3.3 V with High Accuracy
2.0%
Low Output Voltage Ripple, 50 mV, Typical
PWM Switching Frequency at 600 kHz
Automatic PWM/PFM Switchover at Light Load Condition
Very Low Dropout Operation, 100% Max. Duty Cycle
Chip Enable Pin with OnChip 150 nA Pullup Current Source
Low Shutdown Current, 0.3
A, Typical
Input Voltage Range from 2.45 V to 5.5 V
Builtin SoftStart
Internal Undervoltage Lockout (UVLO) Protection
Low Profile and Minimum External Components
Micro Miniature TSOP5 Package
Typical Applications
Personal Digital Assistant (PDA)
Camcorders and Digital Still Camera
HandHeld Instrument
Distributed Power System
Computer Peripheral
Conversion from Four NiMH or NiCd or One Lithiumion Cells to
3.3 V/1.8 V
TSOP5
SN SUFFIX
CASE 483
MARKING
DIAGRAM
xxx = Device Code
Y
= Year
W
= Work Week
1
5
xxxYW
PIN CONNECTIONS
CE
GND
V
OUT
V
IN
EXT
(Top View)
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
ORDERING INFORMATION
1
2
3
4
5
http://onsemi.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NCP1550SN18T1 | 600 kHz PWM/PFM Step-Down DC-DC Controller |
| NCP1550SN18T1G | 600 kHz PWM/PFM Step-Down DC-DC Controller |
| NCP1550SN19T1 | 600 kHz PWM/PFM Step-Down DC-DC Controller |
| NCP1550SN25T1 | 600 kHz PWM/PFM Step-Down DC-DC Controller |
| NCP1550SN27T1 | 600 kHz PWM/PFM Step-Down DC-DC Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1550SN18T1 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.8V 2A Buck PWM/PFM 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 |
| NCP1550SN18T1G | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.8V 2A Buck PWM/PFM w/Enable Soft Start 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 |
| NCP1550SN19T1 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.8V 2A Buck PWM/PFM 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 |
| NCP1550SN19T1G | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.8V 2A Buck PWM/PFM w/Enable Soft Start 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 |
| NCP1550SN25T1 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.8V 2A Buck PWM/PFM 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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