MP2303DN データシートの表示（PDF） - Monolithic Power Systems
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MP2303DN Datasheet PDF : 14 Pages
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TM
MP2303 – 3A, 28V, 340KHz SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER
INITIAL RELEASE – SPECIFICATIONS SUBJECT TO CHANGE
ELECTRICAL CHARACTERISTICS (4) (continued)
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameter
Symbol Condition
Min Typ (4) Max Units
High-Side Switch-On Resistance
Low-Side Switch-On Resistance
High-Side Switch Leakage Current
Upper-Switch Current Limit
RDS(ON)1
RDS(ON)2
VEN = 0V, VSW = 0V
125
mΩ
125
mΩ
0
10
µA
4.3
6.3
A
Lower-Switch Current Limit
From Drain to Source
1.25
A
COMP to Current Sense
Transconductance
GCS
9
A/V
Oscillation Frequency
Short Circuit Oscillation Frequency
Maximum Duty Cycle
Minimum On-Time
Fosc1
Fosc2
DMAX
TA = +25°C
–40°C ≤ TA ≤ +85°C
VFB = 0V
VFB = 0.7V
300
340
380 KHz
270
400 KHz
110
KHz
90
%
220
ns
EN Shutdown Threshold Voltage
EN Shutdown Threshold Voltage
Hysteresis
VEN Rising
1.1
1.5
2.0
V
220
mV
EN Lockout Threshold Voltage
EN Lockout Hysteresis
–40°C ≤ TA ≤ +85°C
2.2
2.5
2.7
V
2.1
2.8
V
210
mV
Input Under Voltage Lockout
Threshold
Input Under Voltage Lockout
Threshold Hysterisis
UVLO VIN rising, TA = +25°C
–40°C ≤ TA ≤ +85°C
3.8
4.05 4.30
V
3.5
4.70
V
210
mV
Soft-Start Current
Thermal Shutdown
VSS = 0V
6
µA
160
°C
Note:
4) 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.
MP2303 Rev. 0.92
www.MonolithicPower.com
3
5/2/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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