EP53F8QI Datasheet, PDF (1/11 Pages) Enpirion, Inc. – 1500 mA Synchronous Buck PWM DC-DC Converter with Integrated Inductor

EP53F8QI
1500 mA Synchronous Buck PWM
DC-DC Converter with Integrated Inductor
RoHS Compliant; Halogen Free
Description
The EP53F8QI provides high efficiency in a very
small footprint. Featuring integrated inductor, the
device delivers up to 1500mA of continuous
output current. Total solution footprint can be as
little as 40mm².
Output voltage is programmed via an external
resistor divider providing a wide range of
flexibility while maintaining a very small footprint.
Integration of the inductor reduces conducted
and radiated noise providing excellent
compatibility with sensitive RF and high speed
data applications.
Application
• Wireless wide area networking data cards.
• Replacement of inefficient LDOs
• Noise Sensitive Applications such as RF,
Audio and Video, and high speed IO
• Computing, Computer Peripherals, Storage,
Networking, and Instrumentation
• USB, DSL, STB, DVR, DTV, and iPC
Features
• Integrated Inductor Technology
• Total Solution Footprint as Small as 40 mm²
• 3 mm x 3 mm x 1.1 mm QFN Package
• Solution Power Density up to 140mW/mm²
• 1500 mA Continuous Output Current
• High Efficiency, up to 94 %
• Low Ripple Voltage; 8 mV_P-P Typical
• Power OK Signal with 5 mA Sink Capability
• 2.4V to 5.5V Input Voltage Range
• Fast Transient Response
• 4 MHz Fixed Switching Frequency
• Low Dropout Operation: 100 % Duty Cycle
• Under Voltage Lockout, Over Current, Short
Circuit, and Thermal Protection
• RoHS Compliant; MSL 3 260 °C Reflow
Figure 1: Typical Application Circuit
Product Performance
95
85
75
65
55
45
35
25
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5
Load Current (A)
Figure 2: Efficiency, V_IN=5V, V_OUT=3.7V
01542
4/3/2009
www.enpirion.com
Rev:A