参数资料
型号: NCP3126CRAGEVB
厂商: ON Semiconductor
文件页数: 1/23页
文件大小: 0K
描述: BOARD EVALUATION NCP3126 CERAMIC
设计资源: NCP3126 Schematic
NCP3126CRAGEVB BOM
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 1,非隔离
输出电压: 最低可调至 0.8V
电流 - 输出: 3A
输入电压: 4.5 V ~ 13.2 V
稳压器拓扑结构: 降压
频率 - 开关: 350kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: NCP3126
其它名称: NCP3126CRAGEVBOS
NCP3126
3 A Synchronous PWM
Switching Converter
The NCP3126 is a flexible synchronous PWM Switching Buck
Regulator. The NCP3126 is capable of producing output voltages as
low as 0.8 V. The NCP3126 also incorporates voltage mode control.
To reduce the number of external components, a number of features
are internally set including switching frequency. The NCP3126 is
currently available in an SOIC ? 8 package.
http://onsemi.com
MARKING
Features
? 4.5 V to 13.2 V Operating Input Voltage Range
? 85 m W High ? Side, 65 m W Low ? Side Switches
? Output Voltage Adjustable to 0.8 V
? 3 A Continuous Output Current
? Fixed 350 kHz PWM Operation
? 1.0% Initial Output Accuracy
? 75% Max Duty Ratio
? Over ? Load Protection
? Programmable Current Limit
? This is a Pb ? Free Device
8
1
SOIC ? 8 NB
D SUFFIX
CASE 751
3126
A
L
Y
W
G
DIAGRAM
8
3126
ALYWX G
G
1
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb ? Free Package
Typical Application
? Set Top Boxes
? DVD Drives and HDD
? LCD Monitors and TVs
? Cable Modems
? Telecom / Networking / Datacom Equipment
100
PIN CONNECTIONS
NCP3126
PGND 1 VSW
FB ISET
COMP VIN
AGND BST
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 22 of this data sheet.
4.5 V ? 13.2 V
VIN
BST
VSW
3.3 V
95
90
5V
PGND
NCP3126
85
ISET
COMP
FB1
AGND
80
75
70
65
0
0.5
1 1.5 2
2.5
3
OUTPUT CURRENT (A)
Figure 1. Typical Application Circuit
Figure 2. Efficiency (V IN = 12 V) vs. Load Current
? Semiconductor Components Industries, LLC, 2011
April, 2011 ? Rev. 2
1
Publication Order Number:
NCP3126/D
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