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NCP5322ADWR2 Datasheet

  • NCP5322ADWR2

  • TWO-PHASE BUCK CONTROLLER WITH INTEGRATED GATE DRIVERS AND 5...

  • 32頁

  • ONSEMI

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NCP5322A
Two-Phase Buck Controller
with Integrated Gate
Drivers and 5-Bit DAC
The NCP5322A is a second鈥揼eneration, two鈥損hase step down
controller which incorporates all control functions required to power
high performance processors and high current power supplies.
Proprietary multi鈥損hase architecture guarantees balanced load current
distribution and reduces overall solution cost in high current
applications. Enhanced V
2
餂?/div>
control architecture provides the fastest
possible transient response, excellent overall regulation, and ease of
use. The NCP5322A is a second鈥揼eneration PWM controller because
it optimizes transient response by combining traditional Enhanced V
2
with an internal PWM ramp and fast鈥揻eedback directly from V
CORE
to
the internal PWM comparator. These enhancements provide greater
design flexibility, facilitate use and reduce output voltage jitter.
The NCP5322A multi鈥損hase 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
current slew rate. This approach allows a considerable reduction in
input and output capacitor requirements, as well as reducing overall
solution size and cost.
Features
鈥?/div>
Enhanced V
2
Control Method with Internal Ramp
鈥?/div>
Internal PWM Ramp
鈥?/div>
Fast鈥揊eedback Directly from V
CORE
鈥?/div>
5鈥揃it DAC with 1.0% Accuracy
鈥?/div>
Adjustable Output Voltage Positioning
鈥?/div>
4 On鈥揃oard Gate Drivers
鈥?/div>
200 kHz to 800 kHz Operation Set by Resistor
鈥?/div>
Current Sensed through Buck Inductors or Sense Resistors
鈥?/div>
Hiccup Mode Current Limit
鈥?/div>
Individual Current Limits for Each Phase
鈥?/div>
On鈥揃oard Current Sense Amplifiers
鈥?/div>
3.3 V, 1.0 mA Reference Output
鈥?/div>
5.0 V and/or 12 V Operation
鈥?/div>
On/Off Control (through Soft Start Pin)
鈥?/div>
Power Good Output with Internal Delay
http://onsemi.com
28
1
SO鈥?8L
DW SUFFIX
CASE 751F
PIN CONNECTIONS AND
MARKING DIAGRAM
1
COMP
V
FB
V
DRP
CS1
CS2
CS
REF
PWRGD
V
ID0
V
ID1
V
ID2
V
ID3
V
ID4
I
LIM
REF
A
WL, L
YY, Y
WW, W
28
R
OSC
V
CCL
V
CCL1
GATE(L)1
GND
GATE(H)1
V
CCH1
LGND
SS
V
CCL2
GATE(L)2
GND2
GATE(H)2
V
CCH2
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
NCP5322ADW
NCP5322ADWR2
Package
SO鈥?8L
SO鈥?8L
Shipping
27 Units/Rail
1000 Tape & Reel
NCP5322A
AWLYYWW
錚?/div>
Semiconductor Components Industries, LLC, 2001
1
December, 2001 鈥?Rev. 4
Publication Order Number:
NCP5322A/D

NCP5322ADWR2 產(chǎn)品屬性

  • 1,000

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - 專用型

  • -

  • 控制器，高性能處理器

  • 4.5 V ~ 14 V

  • 2

  • 3.3V

  • 0°C ~ 70°C

  • 表面貼裝

  • 28-SOIC（0.295"，7.50mm 寬）

  • 28-SOIC

  • 帶卷 (TR)

  • NCP5322ADWR2OSTR

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