34701_07 Datasheet, PDF (6/38 Pages) Freescale Semiconductor, Inc – 1.5 A Switch-Mode Power Supply with Linear Regulator

ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
Table 2. Maximum Ratings (continued)
All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or permanent
damage to the device.
Rating
Symbol
Value
Unit
THERMAL RATINGS
Storage Temperature
Peak Package Reflow Temperature During Reflow ⁽²⁾, ⁽³⁾
T_STG
T_PPRT
-65 to 150
°C
Note 3
°C
Maximum Junction Temperature
T_JMAX
125
°C
Thermal Resistance
Junction to Ambient (Single Layer) ⁽⁴⁾, ⁽⁵⁾
Junction to Ambient (Four Layers) ⁽⁴⁾, ⁽⁵⁾
R_θJA
°C/W
70
55
Thermal Resistance, Junction to Base ⁽⁶⁾
R_θJB
18
°C/W
Operational Package Temperature (Ambient Temperature)
T_A
-40 to 85
°C
Notes
2. Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
3. Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow
Temperature and Moisture Sensitivity Levels (MSL),
Go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts. (i.e.
MC33xxxD enter 33xxx), and review parametrics..
4. Junction temperature is a function of on-chip power dissipation, package thermal resistance, mounting site (board) temperature,
ambient temperature, air flow, power dissipation of other components on the board and board thermal resistance.
5. Per JEDEC JESD51-6 with the board horizontal
6. Thermal resistance between the die and the printed circuit board per JEDEC JESD51-8. Board temperature is measured on the top
surface of the board near the package.
34701
6
Analog Integrated Circuit Device Data
Freescale Semiconductor