|
LMZ10503 Datasheet, PDF (1/22 Pages) National Semiconductor (TI) – 3A SIMPLE SWITCHER® Power Module with 5.5V Maximum Input Voltage | |||
|
LMZ10503
April 1, 2010
3A SIMPLE SWITCHER® Power Module with 5.5V Maximum
Input Voltage
Easy to Use 7 Pin Package
Performance Benefits
â Operates at high ambient temperatures
â High efficiency up to 96% reduces system heat generation
â Low radiated emissions (EMI) complies with EN55022
class B standard (Note 4)
â Low output voltage ripple of 10 mV allows for powering
noise-sensitive transceiver and signaling ICs
â Fast transient response for powering FPGAs and ASICs
TO-PMOD 7 Pin Package
301118a4
10.16 x 13.77 x 4.57 mm (0.4 x 0.39 x 0.18 in)
θJA = 20°C/W, θJC = 1.9°C/W (Note 3)
RoHS Compliant
System Performance
Current Derating (VOUT = 3.3V)
Electrical Specifications
â 15W maximum total output power
â Up to 3A output current
â Input voltage range 2.95V to 5.5V
â Output voltage range 0.8V to 5V
â ±1.63% feedback voltage accuracy over temperature
â Efficiency up to 96%
Key Features
â Integrated shielded inductor
â Flexible startup sequencing using external soft-start,
tracking, and precision enable
â Protection against in-rush currents and faults such as input
UVLO and output short-circuit
â -40°C to +125°C junction temperature operating range
â Single exposed pad and standard pinout for easy
mounting and manufacturing
â Pin-to-pin compatible with
LMZ10504 (4A/20W max)
LMZ10505 (5A/25W max)
â Fully enabled for WEBENCH® and Power Designer
Applications
â Point-of-load conversions from 3.3V and 5V rails
â Space constrained applications
â Extreme temperatures/no air flow environments
â Noise sensitive applications (i.e. transceiver, medical)
301118a5
Efficiency (VOUT = 3.3V)
30111871
Radiated Emissions (EN 55022, Class B)
301118a6
Note 1: Note 1: θ JA measured on a 2.25â x 2.25â (5.8 cm x 5.8 cm) four layer board. Refer to PCB Layout Diagrams or Evaluation Board Application Note:
AN-2022.
Note 2: Note 2: EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See Figure 5 and layout for information on device under test.
© 2010 National Semiconductor Corporation 301118
www.national.com
|
▷ |