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MPQ4322-AEC1

更新时间: 2024-04-09 19:03:27
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43页 3735K
描述
42V 负载突降容限、2A、超紧凑、低静态电流(IQ)同步降压变换器,符合 AEC-Q100 认证

MPQ4322-AEC1 数据手册

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ELECTRICAL CHARACTERISTICS  
VIN = 12V, VEN = 2V, TJ = -40°C to +150°C, typical values are at TJ = 25°C, unless otherwise noted.  
Parameter  
Symbol  
Condition  
Min  
Typ  
Max  
Units  
Input Supply  
VIN under-voltage lockout  
(UVLO) rising threshold  
VIN_UVLO_RISING  
3.4  
2.6  
3.65  
2.9  
3.9  
3.1  
V
V
VIN UVLO falling  
threshold  
VIN_UVLO_FALLING  
VIN_UVLO_HYS  
VIN UVLO hysteresis  
750  
20  
mV  
µA  
VFB = 0.85V, no load, TJ = 25°C  
28  
34  
VFB = 0.85V, no load,  
µA  
µA  
VIN quiescent current  
IQ  
TJ = -40°C to +125°C (11)  
VFB = 0.85V, no load,  
TJ = -40°C to +150°C  
80  
VIN quiescent switching  
current (11)  
Switching, RFB1 = 1MΩ,  
RFB2 = 191kΩ, no load  
IQ_SWITCHING  
ISD  
25  
1
µA  
µA  
VIN shutdown current  
VEN = 0V  
10  
40  
39  
VIN over-voltage  
protection (OVP) rising  
threshold  
VIN_OVP_RISING  
35.5  
34.5  
37.5  
V
VIN OVP falling threshold VIN_OVP_FALLING  
36.5  
1
V
V
VIN OVP hysteresis  
VIN_OVP_HYS  
Switches and Frequency  
RFREQ = 86.6kΩ  
RFREQ = 34.8kΩ  
RFREQ = 15kΩ  
332  
900  
415  
1000  
2200  
±10  
498  
1100  
2420  
kHz  
kHz  
kHz  
%
Switching frequency  
without frequency spread  
spectrum (FSS)  
fSW  
1980  
FSS span  
FSS modulation  
frequency  
15  
kHz  
Minimum on time (11)  
Minimum off time (11)  
Maximum duty cycle  
tON_MIN  
tOFF_MIN  
DMAX  
65  
50  
80  
70  
ns  
ns  
%
98  
99.5  
VEN = 0V, VSW = VBOOT = 0V or  
VIN (TJ = 25°C)  
0.01  
0.01  
70  
1
5
µA  
µA  
Switch leakage current  
ISW_LKG  
VEN = 0V, VSW = VBOOT = 0V or  
VIN (TJ = -40°C to +150°C)  
High-side MOSFET  
(HS-FET) on resistance  
RDS(ON)_HS  
RDS(ON)_LS  
VBOOT - VSW = 5V  
VCC = 5V  
130  
90  
mΩ  
mΩ  
Low-side MOSFET  
(LS-FET) on resistance  
50  
Output and Regulation  
TJ = 25°C  
0.794  
0.790  
0.8  
0.8  
0.806  
0.810  
V
V
FB voltage (adjustable-  
output version)  
VFB  
TJ = -40°C to +150°C  
MPQ4322 Rev. 1.0  
4/6/2023  
MonolithicPower.com  
7
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2023 MPS. All Rights Reserved.  

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