MP2351DQ MPS [Monolithic Power Systems], MP2351DQ Datasheet - Page 2

• Manufacturer Part Number: MP2351DQ
• Description: 1.5A, 23V, 1.4MHz Step-Down Converter
• Manufacturer: MPS [Monolithic Power Systems]

PACKAGE REFERENCE
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
Switch Voltage (V
Bootstrap Voltage (V
Feedback Voltage (V
Enable/UVLO Voltage (V
Comp Voltage (V
Sync Voltage (V
Junction Temperature .............................+150°C
Lead Temperature ..................................+260°C
Storage Temperature.............. –65°C to +150°C
ELECTRICAL CHARACTERISTICS
V
MP2351 Rev. 1.5
1/6/2006
*
Parameter
Feedback Voltage
Upper Switch-On Resistance
Lower Switch-On Resistance
Upper Switch Leakage
Current Limit
Current Sense Transconductance
Output Current to Comp Pin Voltage
Error Amplifier Voltage Gain
Error Amplifier Transconductance
Oscillator Frequency
Short Circuit Frequency
Sync Frequency
Part Number*
IN
For Tape & Reel, add suffix –Z (eg. MP2351DQ–Z)
For Lead Free, add suffix –LF (eg. MP2351DQ –LF–Z)
MP2351DQ
= 12V, T
GROUND (PIN 6)
EXPOSED PAD
CONNECT TO
SW
ON BACKSIDE
NC
NC
BS
IN
A
(4)
TM
= +25°C, unless otherwise noted.
1
2
3
4
5
SYNC
(3mm x 3mm)
COMP
SW
IN
TOP VIEW
Package
)..................................... 25V
QFN10
).................................... 26V
)......................–0.3V to +6V
BS
FB
) ...................–0.3V to +6V
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
) ....................... V
) .................–0.3V to +6V
EN
)...........–0.3V to +6V
MP2351_PD01-QFN10
10
9
8
7
6
–40°C to +85°C
Temperature
SYNC
EN
COMP
FB
GND
Symbol Condition
R
R
DS(ON)1
DS(ON)2
A
G
G
V
f
VEA
© 2006 MPS. All Rights Reserved.
FB
CS
EA
S
SW
www.MonolithicPower.com
+ 6V
MP2351 – 1.5A, 23V, 1.4MHz STEP-DOWN CONVERTER
V
Sync Drive 0V to 2.7V
4.75V ≤ V
V
∆I
(1)
EN
FB
C
= ±10 µA
= 0V
= 0V, V
IN
SW
Recommended Operating Conditions
Supply Voltage (V
Operating Temperature.................–40°C to +85°C
Thermal Resistance
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
3) Measured on approximately 1” square of 1 oz copper.
≤ 23V
*
Part Number*
For Tape & Reel, add suffix –Z (eg. MP2351DK–Z)
For Lead Free, add suffix –LF (eg. MP2351DK –LF–Z)
MP2351DK
= 0V
operating conditions.
SW
NC
NC
BS
IN
1
2
3
4
5
1.195
1.15
Min
500
2.4
1.6
TOP VIEW
IN
Package
MSOP10
) ...................... 4.75V to 23V
(3)
1.230
0.18
1.95
1.40
Typ
400
770
180
2.8
10
0
MP2351_PD01-MSOP10
θ
JA
10
–40°C to +85°C
9
8
7
6
1.265
1100
Temperature
Max
1.65
5.2
2.1
10
SYNC
EN
COMP
FB
GND
θ
JC
Units
µA/V
MHz
MHz
KHz
A/V
V/V
µA
V
Ω
Ω
A
(2)
2