参数资料
| 型号： | NCP5332ADWR2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/30页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR BUCK 2PH STEPDWN 28SOIC |
| 产品变化通告： | Product Obsolescence 11/Feb/2009 |
| 标准包装： | 1 |
| 应用： | 控制器，高性能处理器 |
| 输入电压： | 4.5 V ~ 14 V |
| 输出数： | 2 |
| 输出电压： | 可调 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP5332ADWR2OSCT |
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NCP5332A
Two?Phase Buck Controller
with Integrated Gate
Drivers and 5?Bit DAC
The NCP5332A is a second?generation, two?phase step down
controller which incorporates all control functions required to power
high performance processors and high current power supplies.
Proprietary multi?phase architecture guarantees balanced load current
distribution and reduces overall solution cost in high current
applications. Enhanced V 2 ? control architecture provides the fastest
possible transient response, excellent overall regulation, and ease of
use. The NCP5332A is a second?generation PWM controller because
it optimizes transient response by combining traditional Enhanced V 2
with an internal PWM ramp and fast?feedback directly from V CORE to
the internal PWM comparator. These enhancements provide greater
design flexibility, facilitate use and reduce output voltage jitter.
The NCP5332A multi?phase architecture reduces output voltage
and input current ripple, allowing for a significant reduction in filter
size and inductor values with a corresponding increase in inductor
http://onsemi.com
28
1
SO?28L
DW SUFFIX
CASE 751F
PIN CONNECTIONS AND
MARKING DIAGRAM
current slew rate. This approach allows a considerable reduction in
input and output capacitor requirements, as well as reducing overall
solution size and cost.
COMP
V FB
V DRP
CS1
1
28
R OSC
V CCL
V CCL1
GATE(L)1
Features
? Enhanced V 2 Control Method with Internal Ramp
? Internal PWM Ramp
? Fast?Feedback Directly from V CORE
? VRM 9.X DAC with 1.0% Accuracy
? Adjustable Output Voltage Positioning
? 4 On?Board Gate Drivers
? 200 kHz to 800 kHz Operation Set by Resistor
? Current Sensed through Buck Inductors or Sense Resistors
? Hiccup Mode Current Limit
? Individual Current Limits for Each Phase
? On?Board Current Sense Amplifiers
? 3.3 V, 1.0 mA Reference Output
? 5 V and 12 V, or 12 V Only Operation
? On/Off Control (through Soft Start Pin)
? Power Good Output with Internal Delay
CS2 GND
CS REF GATE(H)1
PWRGD V CCH1
V ID0 LGND
V ID1 SS
V ID2 V CCL2
V ID3 GATE(L)2
V ID4 GND2
I LIM GATE(H)2
REF V CCH2
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
ORDERING INFORMATION
Device Package Shipping
NCP5332ADW SO?28L 26 Units/Rail
NCP5332ADWR2 SO?28L 1000 Tape & Reel
? Semiconductor Components Industries, LLC, 2003
August, 2003 ? Rev. 4
1
Publication Order Number:
NCP5332A/D
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| NCP5351DG | 功能描述:功率驱动器IC 5V 4A Dual MOSFET RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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