LMZ10503 3A SIMPLE SWITCHER® Power Module with 5.5V Maximum Input Voltage
June 10, 2010
LMZ10503
3A SIMPLE SWITCHER® Power Module with 5.5V Maximum
Input Voltage
Easy to Use 7 Pin Package
Performance Benefits
■
Operates at high ambient temperatures
■
High efficiency up to 96% reduces system heat generation
■
Low radiated emissions (EMI) complies with EN55022
class B standard (Note
■
Low output voltage ripple of 10 mV allows for powering
noise-sensitive transceiver and signaling ICs
■
Fast transient response for powering FPGAs and ASICs
System Performance
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TO-PMOD 7 Pin Package
10.16 x 13.77 x 4.57 mm (0.4 x 0.39 x 0.18 in)
θ
JA
= 20°C/W,
θ
JC
= 1.9°C/W
3)
RoHS Compliant
Current Derating (V
OUT
= 3.3V)
Electrical Specifications
■
■
■
■
■
■
15W maximum total output power
Up to 3A output current
Input voltage range 2.95V to 5.5V
Output voltage range 0.8V to 5V
±1.63% feedback voltage accuracy over temperature
Efficiency up to 96%
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Key Features
■
Integrated shielded inductor
■
Flexible startup sequencing using external soft-start,
■
■
■
■
■
tracking, and precision enable
Protection against in-rush currents and faults such as input
UVLO and output short-circuit
-40°C to +125°C junction temperature operating range
Single exposed pad and standard pinout for easy
mounting and manufacturing
Pin-to-pin compatible with
LMZ10504 (4A/20W max)
LMZ10505 (5A/25W max)
Fully enabled for WEBENCH® and Power Designer
Efficiency (V
OUT
= 3.3V)
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Applications
■
■
■
■
Point-of-load conversions from 3.3V and 5V rails
Space constrained applications
Extreme temperatures/no air flow environments
Noise sensitive applications (i.e. transceiver, medical)
Radiated Emissions (EN 55022, Class B)
Note 1:
Note 1:
θ
JA
measured on a 2.25” x 2.25” (5.8 cm x 5.8 cm) four layer board. Refer to
or Evaluation Board Application Note:
AN-2022.
Note 2:
Note 2: EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See
and layout for information on device under test.
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