JW5052S

JW5052S 18V/2A Sync. Step-Down Converter DESCRIPTION FEATURES The JW ®5052S is a current mode monolithic buck voltage converter. Operating with an input range of 3.7~18V, the JW5052S delivers 2A of continuous output current with two integrated N-Channel MOSFETs. At light loads, regulators operate in low frequency to maintain high efficiency and low output ripple. The JW5052S guarantees robustness with short circuit protection, thermal protection, current run-away protection, and input under voltage lockout. The JW5052S is available in a 6-pin TSOT23-6 package, which provides a compact solution with minimal external components.  Company’s Logo is Protected, “JW” and “JOULWATT” are Registered  Trademarks of JoulWatt technology Inc.         3.7V to 18V operating input range 2A output current Up to 95% efficiency High efficiency (>80%) at light load Fixed 800kHz Switching frequency Input under voltage lockout Start-up current run-away protection Over current protection and Hiccup Thermal protection Available in TSOT23-6 package APPLICATIONS     Distributed Power Systems Networking Systems FPGA, DSP, ASIC Power Supplies Green Electronics/ Appliances Notebook Computers TYPICAL APPLICATION 3.3V/2A Step Down Regulator C3 100nF L 4.7μH Vin 4.7V TO 18V VIN BST SW EN JW5052S FB R1 100k C1 10uF R3 49.9k R2 11k GND Vout 3.3V/2A C2 22uF JW5052S Rev.0.85 JoulWatt® Proprietary Information. Patent Protected. 2019/03/12 Unauthorized Photocopy and Duplication Prohibited. 1 JW5052S JoulWatt ORDER INFORMATION DEVICE 1) 2) PACKAGE TOP MARKING JWHY□ JW5052STSOTB#TRPBF TSOT23-6 YW□□□ Notes： JW # TRPBF PB Free Tape and Reel(If”TR”is not shown, it means tube) Package Code Part No. 1) JW 2) Line1: Internal control code Product code Joulwatt LOGO YW Lot number Week code Year code Line2: PIN CONFIGURATION TOP VIEW BST 1 6 SW GND 2 5 FB 3 4 EN VIN TSOT23-6 ABSOLUTE MAXIMUM RATING1） VIN, EN, SW Pin …................................................................................................................ -0.3V to 22V BST Pin ...................................................................................................................... SW-0.3V to SW+5V All other Pins ............................................................................................................................ -0.3V to 6V Junction Temp. 2) 3) ............................................................................................................................150ºC Lead Temperature .............................................................................................................................260ºC JW5052S Rev.0.85 JoulWatt® Proprietary Information. Patent Protected. 2019/03/12 Unauthorized Photocopy and Duplication Prohibited. 2 JW5052S JoulWatt RECOMMENDED OPERATING CONDITIONS Input Voltage VIN .................................................................................................................... 3.7V to18V Output Voltage Vout ............................................................................................................0.6V to VIN-3V THERMAL PERFORMANCE4） Absolute Max Storage Temp. Recommended Operating Junction Temp. Range Recommended Max Case Temp. TC (ºC) Abs. Max Junction Temp. Tj (ºC) Recommended Max Power Loss PD@25ºC (W) -65ºC to 150ºC -40ºC to 125ºC 119 150 0.9 RθJC (ºC/W ) RθJA (ºC/W ) RθJB (ºC/W ) ψJT (ºC/W ) ψJB (ºC/W ) 55 110 14.7 1.2 14.7 Note： 1) 2) 3) 4) Exceeding these ratings may damage the device. The JW5052S guarantees robust performance from -40°C to 150°C junction temperature. The junction temperature range specification is assured by design, characterization and correlation with statistical process controls. The JW5052S includes thermal protection that is intended to protect the device in overload conditions. Thermal protection is active when junction temperature exceeds the maximum operating junction temperature. Continuous operation over the specified absolute maximum operating junction temperature may damage the device. Measured on JESD51-7, 4-layer PCB JW5052S Rev.0.85 JoulWatt® Proprietary Information. Patent Protected. 2019/03/12 Unauthorized Photocopy and Duplication Prohibited. 3 JW5052S JoulWatt ELECTRICAL CHARACTERISTICS VIN=12V, TA=25℃，Unless otherwise stated. Item Symbol Conditions VIN Under Voltage Lock-out Threshold VIN_MIN VIN Under voltage Lockout Hysteresis VIN_MIN_HYST Shutdown Supply Current ISD VEN=0V Supply Current IQ VEN=5V, VFB=1.2V VFB 3.7V