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MP1471A
High-Efficiency, 3A 16V, 500kHz Synchronous,
Step-Down Converter In a 6-Pin TSOT 23
PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE
MPS CONFIDENTIAL AND PROPRIETARY INFORMATION – RTI USE ONLY
The Future of Analog IC Technology
DESCRIPTION
The MP1471A is a high-frequency, synchronous, rectified, step-down, switch-mode converter with inter
nal power MOSFETs. It offers a very compact solution to achieve a 3A output current over a wide input supply range, with excellent load and line regulation. The MP1471A has synchronous-mode operation for FEATURES
• Wide 4.5V-to-16V Operating Input Range • 110m Ω/57m Ω Low-R DS(ON) Internal Power
MOSFETs • Proprietary Switching-Loss–Reduction
Technology
• High-Efficiency Synchronous-Mode
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ORDERING INFORMATION
Part Number*Package Top Marking
MP1471AGJ TSOT23-6 AGM * For Tape & Reel, add suffix –Z (e.g. MP1471AGJ–Z);
PACKAGE REFERENCE
V IN
琢多音字组词V SW
V BS
Supply Voltage 4.5V to 16V
Output Voltage .0.8V to V IN*Dmax
Operating Junction Temp. (T J).-40°C to +125°C
4) Measured on JESD51-7, 4-layer PCB.
ELECTRICAL CHARACTERISTICS (5) V IN = 12V, T A = 25°C, unless otherwi noted.
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TYPICAL CHARACTERISTICS
V IN = 12V, V OUT = 3.3V, L = 4.7µH, T A = +25°C, unless otherwi noted.
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B U TYPICAL PERFORMANCE CHARACTERISTICS
Performance waveforms are tested on the evaluation board of the Design Example ction. V IN = 12V, V OUT = 3.3V, L = 4.7µH, T A = +25°C, unless otherwi noted.
V OUT
2V/div.
V IN
10V/div.
V SW去似朝云无觅处
5V/div.
I INDUCTOR
500mA/div.
V OUT
2V/div.
V IN
10V/div.
V SW
5V/div.
I INDUCTOR
2A/div.
OUT
2V/div.
EN
10V/div.
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10V/div.
INDUCTOR
1A/div.
V OUT
2V/div.
V EN
10V/div.
V SW
10V/div.
I INDUCTOR
2A/div.
V OUT
2V/div.
V EN
10V/div.
V SW
10V/div.
V SW
10V/div.
I INDUCTOR
2A/div.
I INDUCTOR
2A/div.
SW
5V/div.
INDUCTOR
2A/div.
V OUT/AC
20mV/div.
V IN/AC
500mV/div.
