LMZM33603 Datasheet, PDF (1/28 Pages) Texas Instruments – LMZM33603 4-V to 36-V Input, 3-A Step-Down DC-DC Power Module in QFN Package

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LMZM33603
SNVSAO6 – SEPTEMBER 2017
LMZM33603 4-V to 36-V Input, 3-A Step-Down DC-DC Power Module in QFN Package
1 Features
•1 Complete Integrated Power Solution
– As Few as 4 External Components
– Minimum Solution Size < 100 mm²
• 9 mm × 7 mm × 4 mm QFN Package
– All Pins Accessible from Package Perimeter
– Pin Compatiable with LMZM33602
• 4-V to 36-V Input Voltage Range
• Output Voltage Range
– 1 V to 13.5 V at 3 A
– 1 V to 18 V at 2 A
• Efficiencies Up To 95%
• Adjustable Switching Frequency
(200 kHz to 1.2 MHz)
• Allows Synchronization to an External Clock
• Power-Good Output
• Meets EN55011 Class A Emissions
• Operating IC Junction Range: –40°C to 125°C
• Operating Ambient Temperature: –40°C to 105°C
2 Applications
• Factory and Building Automation
• Smart Grid and Energy
• Industrial
• Medical
• Defense
space
space
Simplified Schematic
VIN
CIN
RRT
VIN
EN/SYNC
PGOOD
VOUT
LMZM33603
RT
FB
PGND
RFBT
VOUT
COUT
RFBB
Copyright © 2017, Texas Instruments Incorporated
3 Description
The LMZM33603 power module is an easy-to-use
integrated power solution that combines a 3-A DC-DC
converter with power MOSFETs, a shielded inductor,
and passives into a low-profile package. This power
solution requires as few as four external components
and eliminates the loop compensation and magnetics
part selection from the design process.
The 9 mm × 7 mm × 4 mm, 18-pin, QFN package is
easy to solder onto a printed circuit board and allows
a compact, low-profile point-of-load design. The full
feature set including power good, programmable
UVLO, prebias start-up, as well as overcurrent and
overtemperature protection make the LMZM33603
ideal for powering a wide range of applications.
Device Information
DEVICE NUMBER
PACKAGE
BODY SIZE (NOM)
LMZM33603
QFN (18)
9.00 mm × 7.00 mm
Device Comparison
PART NUMBER
OUTPUT CURRENT
LMZM33603
3A
LMZM33602
2A
space
Safe Operating Area
115
105
95
85
75
65
55
45
VIN = 24V
VOUT = 3.3V, fsw = 300kHz
35
VOUT = 5.0V, fsw = 450kHz
VOUT = 12V, fsw = 900kHz
25
0.0
0.5
1.0
1.5
2.0
2.5
Output Current (A)
3.0
SOA
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. ADVANCE INFORMATION for pre-production products; subject to
change without notice.