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參數(shù)資料
| 型號： | NCP1575DG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Low Voltage Synchronous Buck Controller with Adjustable Switching Frequency |
| 中文描述： | 1.5 A SWITCHING CONTROLLER, 320 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | LEAD FREE, SOIC-8 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 110K |
| 代理商： | NCP1575DG |
Semiconductor Components Industries, LLC, 2004
November, 2004 Rev. 6
1
Publication Order Number
NCP1575/D
NCP1575
Low Voltage Synchronous
Buck Controller with
Adjustable Switching
Frequency
The NCP1575 is a low voltage buck controller. It provides the
control for a DCDC power solution producing an output voltage as
low as 0.980 V over a wide current range. It contains all required
circuitry for a synchronous NFET buck regulator using the V
2
control method to achieve the fastest possible transient response and
best overall regulation. The NCP1575 operates at a default switching
frequency of 200 kHz, but switching frequency is userprogrammable
with an additional resistor between R
OSC
and ground. This device
provides undervoltage lockout protection, softstart, and builtin
adaptive nonoverlap and is assembled in an SOIC8 package.
The NCP1575based solution requires a bias supply of 12 V, and it
can convert from a bulk power supply ranging from 2 V to 12 V.
Conversion from bulk supplies greater than 7 V is best accomplished
by using an external doubler circuit to raise the enhancement voltage
for the external NFET switches.
Features
PbFree Packages are Available
0.980 V
±
1.0% Reference Voltage
V
2
Control Topology
200 ns Transient Response
Programmable SoftStart
40 ns Gate Rise and Fall Times (3.3 nF Load)
Adaptive FET Nonoverlap Time
Default 200 kHz Oscillator Frequency (No External
Resistor Required)
UserProgrammable Oscillator Frequency (One External
Resistor Required)
Undervoltage Lockout
On/Off Control Through Use of the COMP Pin
Overvoltage Protection through Synchronous MOSFETs
Synchronous NChannel Buck Design
“12 V Only” or Dual Supply Operation
Device
Package
Shipping
ORDERING INFORMATION
NCP1575D
SOIC8
98 Units/Rail
NCP1575DR2
2500 Tape & Reel
SOIC8
D SUFFIX
CASE 751
A
L
Y
W
= Assembly Location
= Wafer Lot
= Year
= Work Week
GATE(H)
COMP
1
8
GATE(L)
NC
V
FB
R
OSC
GND
V
CC
PIN CONNECTIONS
1
8
http://onsemi.com
1575
ALYW
1
8
MARKING
DIAGRAM
NCP1575DG
SOIC8
(PbFree)
98 Units/Rail
SOIC8
SOIC8
(PbFree)
NCP1575DR2G
2500 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(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1575DR2 | 功能描述:DC/DC 開關(guān)控制器 Low Voltage RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| NCP1575DR2G | 功能描述:DC/DC 開關(guān)控制器 Low Voltage Synchronous Buck RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| NCP1578MNR2G | 功能描述:IC REG DL BCK/LINEAR SYNC 20-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 + 切換式 系列:- 標準包裝:2,500 系列:- 拓撲:降壓（降壓）同步（3），線性（LDO）（2） 功能:任何功能 輸出數(shù):5 頻率 - 開關(guān):300kHz 電壓/電流 - 輸出 1:控制器 電壓/電流 - 輸出 2:控制器 電壓/電流 - 輸出 3:控制器 帶 LED 驅(qū)動器:無 帶監(jiān)控器:無 帶序列發(fā)生器:是 電源電壓:5.6 V ~ 24 V 工作溫度:-40°C ~ 85°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| NCP1579DR2G | 功能描述:電壓模式 PWM 控制器 BUCK CONTROLLER RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| NCP1580DR2 | 功能描述:電壓模式 PWM 控制器 Low Voltage RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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