EV2351DQ-00A Просмотр технического описания (PDF) - Monolithic Power Systems
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EV2351DQ-00A Datasheet PDF : 8 Pages
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TM
MP2351 – 1.5A, 23V, 1.4MHz STEP-DOWN CONVERTER
PACKAGE REFERENCE
TOP VIEW
NC 1
BS 2
NC 3
IN 4
SW 5
10 SYNC
9 EN
8 COMP
7 FB
6 GND
EXPOSED PAD
ON BACKSIDE
CONNECT TO
GROUND (PIN 6)
MP2351_PD01-QFN10
Part Number* Package
Temperature
MP2351DQ
QFN10
–40°C to +85°C
(3mm x 3mm)
* For Tape & Reel, add suffix –Z (eg. MP2351DQ–Z)
For Lead Free, add suffix –LF (eg. MP2351DQ –LF–Z)
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage (VIN)..................................... 25V
Switch 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
Sync Voltage (VSYNC)......................–0.3V to +6V
Junction Temperature .............................+150°C
Lead Temperature ..................................+260°C
Storage Temperature.............. –65°C to +150°C
NC 1
BS 2
NC 3
IN 4
SW 5
TOP VIEW
10 SYNC
9 EN
8 COMP
7 FB
6 GND
MP2351_PD01-MSOP10
Part Number*
MP2351DK
Package
MSOP10
Temperature
–40°C to +85°C
* For Tape & Reel, add suffix –Z (eg. MP2351DK–Z)
For Lead Free, add suffix –LF (eg. MP2351DK –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
MSOP10 ................................ 150 ..... 65... °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
Sync Frequency
AVEA
GEA
fS
∆IC = ±10 µA
VFB = 0V
Sync Drive 0V to 2.7V
Min
1.195
2.4
500
1.15
1.6
Typ
1.230
0.18
10
0
2.8
1.95
400
770
1.40
180
Max
1.265
10
5.2
1100
1.65
2.1
Units
V
Ω
Ω
µA
A
A/V
V/V
µA/V
MHz
KHz
MHz
MP2351 Rev. 1.5
www.MonolithicPower.com
2
1/6/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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