MP1474 – SYNCHRONOUS STEP-DOWN CONVERTER
ORDERING INFORMATION
Part Number*
Package
Top Marking
MP1474DJ
TSOT-23-8
ADK
* For Tape & Reel, add suffix –Z (e.g. MP1474DJ–Z);
For RoHS Compliant Packaging, add suffix –LF (e.g. MP1474DJ–LF–Z)
PACKAGE REFERENCE
TOP VIEW
PG
IN
FB
1
2
3
4
8
7
6
5
VCC
SW
GND
EN/SYNC
BST
ABSOLUTE MAXIMUM RATINGS (1)
VIN ..................................................-0.3V to 17V
Thermal Resistance (5)
TSOT-23-8.............................100..... 55... °C/W
θJA
θJC
V
SW......................................................................
-0.3V (-5V for <10ns) to 17V (19V for <10ns)
BST ........................................................ VSW+6V
Notes:
1) Exceeding these ratings may damage the device.
2) About the details of EN pin’s ABS MAX rating, please refer to
Page 9, Enable/SYNC control section.
V
All Other Pins................................ -0.3V to 6V (2)
3) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
(3)
Continuous Power Dissipation (TA = +25°C)
........................................................... 1.25W
Junction Temperature...............................150°C
Lead Temperature ....................................260°C
Storage Temperature................. -65°C to 150°C
Recommended Operating Conditions (4)
Supply Voltage VIN ...........................4.5V to 16V
Output Voltage VOUT.....................0.8V to VIN-3V
Operating Junction Temp. (TJ). -40°C to +125°C
4) The device is not guaranteed to function outside of its
operating conditions.
5) Measured on JESD51-7, 4-layer PCB.
MP1474 Rev. 1.0
9/26/2012
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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