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参数资料
| 型号： | NCV8843PWG |
| 厂商： | ON Semiconductor |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 1.5A 16SOIC |
| 标准包装： | 47 |
| 类型： | 降压（降压） |
| 输出数： | 1 |
| 输入电压： | 4.5 V ~ 40 V |
| PWM 型： | 混合物 |
| 频率 - 开关： | 340kHz |
| 电流 - 输出： | 1.5A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-SOIC W |
NCV8843
D1
R6
100k
Vout (3.3 V)
C3
100 m F
+
L1
18 m H
R3
162
D2
C1
0.1 m F
U1
Vsw Vin
SHDNB BOOST
NC NC
NC NC
NC NC
NC NC
SYNC Vc
GND Vfb
NCV8843
C5
0.1 m F
Vin (7 V to 16 V)
+ C2
330 m F
R2
100
C4
0.1 m F
SHDNB
SYNC
Figure 1. Application Diagram, 7.0 V ? 16 V to 3.3 V @ 1.0 A Converter
MAXIMUM RATINGS*
Rating
Peak Transient Voltage (31 V Load Dump @ V IN = 14 V)
Operating Junction Temperature Range, T J
Value
45
? 40 to 150
Unit
V
° C
Lead Temperature Soldering:
Storage Temperature Range, T S
ESD
Package Thermal Resistance
Reflow: (Note 1)
(Human Body Model)
(Machine Model)
(Charge Device Model)
SO ? 16W EPAD Junction ? to ? Case, R q JC
SO ? 16W EPAD Junction ? to ? Ambient, R q JA (Note 3)
DFN18 Junction ? to ? Ambient, R q JA (Note 3)
SO ? 8 Junction ? to ? Ambient, R q JA (Note 4)
260 peak
(Note 2)
? 65 to +150
2.0
200
>1.0
16
35
38
100
° C
° C
kV
V
kV
° C/W
° C/W
° C/W
° C/W
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
*The maximum package power dissipation must be observed.
1. 60 second maximum above 183 ° C.
2. ? 5 ° C/0 ° C allowable conditions.
3. 4 layer board, 1 oz copper outer layers, 0.5 oz copper inner layers, 600 sq mm copper area.
4. 1 in 2 , 1 oz copper area used for heatsinking.
MAXIMUM RATINGS (Voltages are with respect to GND)
Pin Name
V IN (DC)*
BOOST
V SW
V C
SHDNB
SYNC
V FB
V Max
40 V
40 V
40 V
7.0 V
7.0 V
7.0 V
7.0 V
V MIN
? 0.3 V
? 0.3 V
? 0.6 V/ ? 1.0 V, t < 50 ns
? 0.3 V
? 0.3 V
? 0.3 V
? 0.3 V
I SOURCE
N/A
N/A
4.0 A
1.0 mA
1.0 mA
1.0 mA
1.0 mA
I SINK
4.0 A
100 mA
10 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
*See table above for load dump.
http://onsemi.com
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