1 Features
1• Integrated Shielded Inductor
• Flexible Start-up Sequencing Using External Soft-
Start, Tracking, and Precision Enable
• Protection Against In-Rush Currents and Faults
such as Input UVLO and Output Short-Circuit
• Single Exposed Pad and Standard Pinout for Easy
Mounting and Manufacturing
• Pin-to-Pin Compatible With
– LMZ10503 (3-A/15-W Maximum)
– LMZ10504 (4-A/20-W Maximum)
• Fully Enable for WEBENCH® and Power Designer
• Electrical Specifications
– 25-W Maximum Total Output Power
– Up to 5-A Output Current
– Input Voltage Range 2.95 V to 5.5 V
– Output Voltage Range 0.8 V to 5 V
– ±1.63% Feedback Voltage Accuracy Over
Temperature
– Efficiency up to 96%
• Performance Benefits
– Operates at High Ambient Temperatures
– High Efficiency up to 96% Reduces System
Heat Generation
– Low Radiated Emissions (EMI) Tested to
EN55022 Class B Standard (EN 55022:2006,
+A1:2007, FCC Part 15 Subpart B: 2007. See
Table 9 and Layout for Information on Device
Under Test.)
– Passes 10-V/m Radiated Immunity EMI Tested
to Standard EN61000 4-3
– Fast Transient Response for Powering FPGAs
and ASICs
• Create a Custom Design Using the LMZ10505
With the WEBENCH® Power Designer

2 Applications
• Point-of-Load Conversions from 3.3-V and 5-V
Rails
• Space-Constrained Applications
• Noise-Sensitive Applications (Such as
Transceiver, Medical)

3 Description
The LMZ10505 power module is a complete, easy-touse,
DC-DC solution capable of driving up to a 5-A
load with exceptional power conversion efficiency,
output voltage accuracy, line and load regulation. The
LMZ10505 is available in an innovative package that
enhances thermal performance and allows for hand
or machine soldering.
The LMZ10505 can accept an input voltage rail
between 2.95 V and 5.5 V and can deliver an
adjustable and highly accurate output voltage as low
as 0.8 V. One megahertz fixed-frequency PWM
switching provides a predictable EMI characteristic.
Two external compensation components can be
adjusted to set the fastest response time, while
allowing the option to use ceramic or electrolytic
output capacitors. Externally programmable soft-start
capacitor facilitates controlled start-up. The
LMZ10505 is a reliable and robust solution with the
following features: lossless cycle-by-cycle peak
current limit to protect for overcurrent or short-circuit
fault, thermal shutdown, input undervoltage lockout,
and prebiased start-up.