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参数资料
| 型号： | NCP3101BUCK1GEVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 3/26页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR NCP3101BUCK1G |
| 设计资源： | NCP3101BUCK1 EVB BOM NCP3101BUCKL1GEVB Gerber Files NCP3101BUCK1 EVB Schematic |
| 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： | 3.3V |
| 电流 - 输出： | 6A |
| 输入电压： | 13.2V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 275kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | NCP3101 |
| 其它名称： | NCP3101BUCK1GEVBOS |
NCP3101C
PWRPHS 1
PWRPHS 2
PWRPHS 3
PWRPHS 4
PWRGND 5
PWRGND 6
PWRGND 7
PWRGND 8
PWRGND 9
PWRGND 10
PWRPHS
PWRVCC
AGND
30
29
28
27
26
25
24
23
22
21
PWRVCC
PWRVCC
PWRVCC
PWRVCC
PWRVCC
TGIN
BST
AGND
CPHS
TGOUT
Figure 4. Pin Connections
Table 1. PIN FUNCTION DESCRIPTION
Pin No
1 ? 4, 36 ? 40
5 ? 12
13
14,15,19,20,23
16
17
18
21
22
24
25
26 ? 34
35
Symbol
PWRPHS
PWRGND
VCC
AGND
FB
COMP/DIS
NC
TGOUT
CPHS
BST
TGIN
PWRVCC
BG
Description
Power phase node (PWRPHS). Drain of the low side power MOSFET.
Power ground. High current return for the low ? side power MOSFET. Connect
PWRGND with large copper areas to the input and output supply returns, and
negative terminals of the input and output capacitors.
Supply rail for the internal circuitry. Operating supply range is 4.5 V to 13.2 V.
Decouple with a 1 m F capacitor to GND. Ensure that this decoupling capacitor is
placed near the IC.
IC ground reference. All control circuits are referenced to these pins.
The inverting input pin to the error amplifier. Use this pin in conjunction with the
COMP pin to compensate the voltage ? control feedback loop. Connect this pin to the
output resistor divider (if used) or directly to output voltage.
Compensation or disable pin. The output of the error amplifier (EA) and the
non ? inverting input of the PWM comparator. Use this pin in conjunction with the FB
pin to compensate the voltage ? control feedback loop. The compensation capacitor
also acts as a soft start capacitor. Pull the pin below 400 mV to disable controller.
Not Connected. The pin can be connected to AGND or not connected.
High side MOSFET driver output.
The controller phase sensing for short circuit protection.
Supply rail for the floating top gate driver. To form a boost circuit, use an external
diode to bring the desired input voltage to this pin (cathode connected to BST pin).
Connect a capacitor (C BST ) between this pin and the CPHS pin.
High side MOSFET gate.
Input supply pin for the high side MOSFET. Connect VCCPWR to the VCC pin or
power separately for split rail application..
The current limit set pin.
Table 2. ABSOLUTE MAXIMUM RATINGS
Pin Name
Main Supply Voltage Control Input
Main Supply Voltage Power Input
Bootstrap Supply Voltage vs Ground
Bootstrap Supply Voltage vs Ground (spikes < =
50 ns)
Symbol
V CC
PWRVCC
V BST
V BST_spike
Min
? 0.3
? 0.3
? 0.3
? 5.0
Max
15
30
35
40
Unit
V
V
V
V
http://onsemi.com
3
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