参数资料
型号: NCP1573DR2
厂商: ON Semiconductor
文件页数: 1/17页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 8-SOIC
产品变化通告: Product Discontinuation 31/Mar/2005
标准包装: 1
PWM 型: 电流/电压模式,V²?
输出数: 1
频率 - 最大: 250kHz
电源电压: 11.4 V ~ 12.6 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
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: NCP1573DR2OSCT
NCP1573
Low Voltage Synchronous
Buck Controller
The NCP1573 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. The NCP1573 ? based
solution is powered from 12 V with the output derived from a 2 ? 7 V
supply. 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. NCP1573 operates at a
fixed internal 200 kHz frequency and is packaged in an SO ? 8.
This device provides Power Good with delay and built ? in adaptive
non ? overlap.
Features
? 0.980 V ± 1.0% Reference Voltage
http://onsemi.com
8
1
SO ? 8
D SUFFIX
CASE 751
PIN CONNECTIONS AND
MARKING DIAGRAM
?
?
?
?
?
V 2 Control Topology
200 ns Transient Response
Power Good
Programmable Power Good Delay
40 ns Gate Rise and Fall Times (3.3 nF Load)
V CC
PWRGD
PGDELAY
COMP
1
8
GND
V FB
GATE(L)
GATE(H)
?
?
?
?
?
Adaptive FET Non ? Overlap Time
Fixed 200 kHz Oscillator Frequency
On/Off Control Through Use of the COMP Pin
Overvoltage Protection through Synchronous MOSFETs
Synchronous N ? Channel Buck Design
A
L
Y
W
= Assembly Location
= Wafer Lot
= Year
= Work Week
?
Dual Supply, 12 V Control, 2 ? 7 V Power Source
ORDERING INFORMATION
Device
NCP1573D
NCP1573DR2
Package
SO ? 8
SO ? 8
Shipping
98 Units/Rail
2500 Tape & Reel
? Semiconductor Components Industries, LLC, 2006
July, 2006 ? Rev. 4
1
Publication Order Number
NCP1573/D
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