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| 型号： | NCP1575DR2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 8-SOIC |
| 产品变化通告： | Product Obsolescence 11/Feb/2009 |
| 标准包装： | 1 |
| PWM 型： | 电流/电压模式，V²? |
| 输出数： | 1 |
| 频率 - 最大： | 320kHz |
| 电源电压： | 9 V ~ 20 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP1575DR2OSCT |
NCP1575
Low Voltage Synchronous
Buck Controller with
Adjustable Switching
Frequency
The NCP1575 is a low voltage buck controller. It provides the
control for a DC?DC 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 t
control method to achieve the fastest possible transient response and
http://onsemi.com
MARKING
DIAGRAM
8
best overall regulation. The NCP1575 operates at a default switching
frequency of 200 kHz, but switching frequency is user?programmable
with an additional resistor between R OSC and ground. This device
provides undervoltage lockout protection, soft?start, and built?in
8
1
SOIC?8
D SUFFIX
CASE 751
1
1575
ALYW
adaptive nonoverlap and is assembled in an SOIC?8 package.
The NCP1575?based 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
A
L
Y
W
= Assembly Location
= Wafer Lot
= Year
= Work Week
?
?
?
?
?
?
?
?
?
Pb?Free Packages are Available
0.980 V ± 1.0% Reference Voltage
V 2 Control Topology
200 ns Transient Response
Programmable Soft?Start
40 ns Gate Rise and Fall Times (3.3 nF Load)
Adaptive FET Nonoverlap Time
Default 200 kHz Oscillator Frequency (No External
Resistor Required)
User?Programmable Oscillator Frequency (One External
PIN CONNECTIONS
1 8
V CC GND
R OSC V FB
NC GATE(L)
COMP GATE(H)
ORDERING INFORMATION
Device Package Shipping ?
?
?
?
?
?
Resistor Required)
Undervoltage Lockout
On/Off Control Through Use of the COMP Pin
Overvoltage Protection through Synchronous MOSFETs
Synchronous N?Channel Buck Design
“12 V Only” or Dual Supply Operation
NCP1575D
NCP1575DG
NCP1575DR2
NCP1575DR2G
SOIC?8
SOIC?8
(Pb?Free)
SOIC?8
SOIC?8
(Pb?Free)
98 Units/Rail
98 Units/Rail
2500 Tape & Reel
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.
? Semiconductor Components Industries, LLC, 2004
November, 2004 ? Rev. 6
1
Publication Order Number
NCP1575/D
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| NCP1575DR2G | 功能描述:DC/DC 开关控制器 Low Voltage Synchronous Buck RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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| NCP1579DR2G | 功能描述:电压模式 PWM 控制器 BUCK CONTROLLER RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| NCP1580DR2 | 功能描述:电压模式 PWM 控制器 Low Voltage RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| NCP1580DR2G | 功能描述:电压模式 PWM 控制器 Low Voltage Synchronous Buck RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
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