参数资料
| 型号： | NCP5217AMNTXG |
| 厂商： | ON Semiconductor |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 14-QFN |
| 标准包装： | 3,000 |
| PWM 型： | 电流/电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 330kHz |
| 电源电压： | 4.5 V ~ 27 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 14-VFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 其它名称： | NCP5217AMNTXG-ND NCP5217AMNTXGOSTR |
NCP5217A
PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Symbol
EN_SKIP
CS+
CS ? /Vo
COMP
FB
PGOOD
AGND
PGND
DL/TRESET
VCC
IDRP/OCP
SWN
DH
BST
Description
This pin serves as two functions. Enable: Logic control for enabling the switcher. SKIP: Power saving
mode (Skip and Force PWM) programmable pin.
Inductor current differential sense non ? inverting input.
Inductor current differential sense inverting input.
Output of the error amplifier.
Output voltage feed back.
Power good indicator of the output voltage. High impendence (open drain) if power good (in
regulation). Low impendence if power not good.
Analog ground.
Ground reference and high ? current return path for the bottom gate driver.
Gate driver output of bottom N ? channel MOSFET. It also has the function for TRESET.
Supply for analog circuit and bottom gate driver.
Over current protection and Droop Voltage programmable pin.
Switch node between the top MOSFET and bottom MOSFET.
Gate driver output of the top N ? channel MOSFET.
Top gate driver input supply, a bootstrap capacitor connection between SWN and this pin.
ABSOLUTE MAXIMUM RATINGS
Rating
VCC Power Supply Voltage to AGND
High ? side Gate Drive Supply: BST to SWN
High ? side Gate Drive Voltage: DH to SWN
Low ? side Gate Drive Supply: VCC to PGND
Low ? side Gate Drive Voltage: DL to PGND
Input / Output Pins to AGND
Switch Node SWN
High ? Side Gate Drive/Low ? Side Gate Drive Outputs
PGND
Thermal Characteristics
Thermal Resistance Junction ? to ? Ambient (QFN14 Package)
Operating Junction Temperature Range (Note 1)
Operating Ambient Temperature Range
Storage Temperature Range
Moisture Sensitivity Level
Symbol
VCC
V BST ? V SWN,
V DH ? V SWN,
VCC ? V PGND,
V DL ? V PGND,
V IO
V SWN
DH, DL
V PGND
R q JA_QFN14
T J
T A
T stg
MSL
Value
? 0.3, 6.0
? 0.3, 6.0
? 0.3, 6.0
? 5 V (< 100 ns)
30 V
? 3(DC)
? 0.3, 0.3
48
? 40 to + 150
? 40 to + 85
? 55 to +150
1
Unit
V
V
V
V
V
V
° C/W
° C
° C
° C
?
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NOTE: This device is ESD sensitive. Use standard ESD precautions when handling.
1. Internally limited by thermal shutdown, 150 ° C min.
http://onsemi.com
3
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