MP2358 Ver la hoja de datos (PDF) - Monolithic Power Systems
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MP2358 Datasheet PDF : 9 Pages
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TM
MP2358 – 2A, 23V, 370KHz STEP-DOWN CONVERTER
PACKAGE REFERENCE
TOP VIEW
NC 1
BS 2
NC 3
IN 4
SW 5
10 SS
9 EN
8 COMP
7 FB
6 GND
EXPOSED PAD
ON BACKSIDE
MP2358_PD01-QFN10
Part Number* Package
Temperature
MP2358DQ
QFN10
(3mm x 3mm)
–40°C to +85°C
* For Tape & Reel, add suffix –Z (eg. MP2358DQ–Z)
For Lead Free, add suffix –LF (eg. MP2358DQ–LF–Z)
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage (VIN)..................................... 25V
Switch Node Voltage (VSW) .......................... 26V
Bootstrap Voltage (VBS) ....................... VSW + 6V
Feedback Voltage (VFB) .................–0.3V to +6V
Enable/UVLO Voltage (VEN)...........–0.3V to +6V
Comp Voltage (VCOMP) ...................–0.3V to +6V
SS Voltage (VSS) ............................–0.3V to +6V
Junction Temperature ............................ +150°C
Lead Temperature ................................. +260°C
Storage Temperature.............. –65°C to +150°C
TOP VIEW
BS 1
IN 2
SW 3
GND 4
8 SS
7 EN
6 COMP
5 FB
MP2358_PD02_SOIC8
Part Number** Package
Temperature
MP2358DS
SOIC8
–40°C to +85°C
** For Tape & Reel, add suffix –Z (eg. MP2358DS–Z)
For Lead Free, add suffix –LF (eg. MP2358DS–LF–Z)
Recommended Operating Conditions (2)
Supply Voltage (VIN) ...................... 4.75V to 23V
Operating Temperature.................–40°C to +85°C
Thermal Resistance (3) θJA θJC
QFN10 (3x3)........................... 50 ...... 12... °C/W
SOIC8.................................... 105 ..... 50... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
3) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameter
Symbol Condition
Feedback Voltage
Upper Switch On Resistance
Lower Switch On Resistance
Upper Switch Leakage
Current Limit (4)
VFB
RDS(ON)1
RDS(ON)2
4.75V ≤ VIN ≤ 23V
VEN = 0V, VSW = 0V
Current Sense Transconductance
Output Current to Comp Pin Voltage
GCS
Error Amplifier Voltage Gain
Error Amplifier Transconductance
Oscillator Frequency
Short Circuit Frequency
Soft-Start Pin Equivalent
Output Resistance
AVEA
GEA
fS
∆IC = ±10µA
VFB = 0V
Min
0.892
2.8
550
Typ
0.920
0.18
10
0
3.4
1.95
400
830
370
240
9
Max
0.948
10
1150
Units
V
Ω
Ω
µA
A
A/V
V/V
µA/V
KHz
KHz
kΩ
MP2358 Rev. 1.3
www.MonolithicPower.com
2
3/23/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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