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SY7152A

Silergy
Part Number SY7152A
Manufacturer Silergy
Description High Efficiency 1MHz 2A Step-Up Regulator
Published Jan 9, 2016
Detailed Description  www.szyucan.com  Applications Note: SY7152A High Efficiency 1MHz, 2A Step Up Regulator Preliminary Specification Gene...
Datasheet PDF File SY7152A PDF File

SY7152A
SY7152A

Overview
 www.
szyucan.
com  Applications Note: SY7152A High Efficiency 1MHz, 2A Step Up Regulator Preliminary Specification General Description The SY7152A is a high efficiency, current-mode control Boost regulator.
The device integrates a 130mΩ low RDS(ON) N-channel MOSFET for high efficiency.
The fixed 1MHz switching frequency and internal compensation reduce external components size and count.
The build-in internal soft start circuitry minimizes the inrush current at start-up.
The SY7152A is available in compact SOT23-6 package.
Ordering Information SY7152 □(□□)□ Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 85°C Ordering Number Package type Note SY7152AABC SOT23-6 2A Typical Applications Features • Wide input range: 3-8V bias input, 16Vout max • 1MHz switching frequency • Minimum on time: 100ns typical • Minimum off time: 100ns typical • Low RDS(ON): 130mΩ • RoHS Compliant and Halogen Free • Accurate Reference: 0.
6VREF • Compact package: SOT23-6 Applications • WLED Drivers • Networking cards powered from PCI or PCI- express slots Figure 1.
Schematic Diagram AN_SY7152A Rev.
0.
1 Figure 2.
Efficiency vs Load Current 1 Pinout (top view)  www.
szyucan.
com  SY7152A （SOT23-6） Top Mark: UBxyz (Device code: UB, x=year code, y=week code, z= lot number code) Pin Name IN GND LX FB EN NC Pin Number 5 2 1 3 4 6 Pin Description Input pin.
Decouple this pin to GND pin with 1uF ceramic cap.
Ground pin Inductor node.
Connect an inductor between IN pin and LX pin.
Feedback pin.
Connect a resistor R1 between VOUT and FB, and a resistor R2 between FB and GND to program the output voltage: VOUT=0.
6V*(R1/R2+1).
Enable control.
High to turn on the part.
Don’t leave it floated.
No connection.
Absolute Maximum Ratings (Note 1) LX, IN, EN ----------------------------------------------------------------------------------------------------------------------- 18V All other pins-------------------------- --------------------------------------------------...


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