JW5033T

JW5033T 18V/2A Sync. Step-Down Converter Parameters Subject to Change Without Notice DESCRIPTION FEATURES The JW ®5033T is a current mode monolithic buck voltage converter. Operating with an input range of 3.7V-18V, the JW5033T 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 JW5033T guarantees robustness with short circuit protection, thermal protection, current run-away protection, and input under voltage lockout. The JW5033T is available in a 6-pin TSOT23-6 package, which provides a compact solution with minimal external components.








3.7V to 18V operating input range 2A output current Up to 95% efficiency High efficiency 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

Company’s Logo is Protected, “JW” and “JOULWATT” are Registered
Trademarks of JoulWatt technology Inc.

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 Vin 4.7V TO 18V C1 22uF L 3.3µH VIN BST SW EN JW5033T FB R1 100k Vout 3.3V/2A R3 53.1k R2 16k C2 22uF GND JW5033T Rev.0.86 JoulWatt® Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 1 JW5033T JoulWatt ORDER INFORMATION DEVICE 1) PACKAGE 2) TOP MARKING JWCDX JW5033TTSOTB#TRPBF TSOT23-6 YWLLL ： Notes PIN CONFIGURATION ABSOLUTE MAXIMUM RATING1） VIN, EN, SW Pin >................................................................................................................ -0.3V to 20V SW........................................................................................... -0.3V(-4.5V for 10ns) to 20V(22V for 10ns) BST Pin ...................................................................................................................... SW-0.3V to SW+5V All other Pins ............................................................................................................................ -0.3V to 6V Junction Temp. 2) 3) ............................................................................................................................150ºC Lead Temperature .............................................................................................................................260ºC ESD Susceptibility (Human Body Model) ............................................................................................. 2kV RECOMMENDED OPERATING CONDITIONS Input Voltage VIN .................................................................................................................... 3.7V to 18V Output Voltage Vout ........................................................................................................0.765V 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 JW5033T Rev.0.86 JoulWatt® Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2 JW5033T JoulWatt ： Note 1) 2) 3) 4) Exceeding these ratings may damage the device. The JW5033T 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 JW5033T 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 JW5033T Rev.0.86 JoulWatt® Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 3 JW5033T JoulWatt ELECTRICAL CHARACTERISTICS VIN=12V, TA=25 ℃，Unless otherwise stated. Item Symbol VIN Under Voltage Lock-out Threshold VIN Under voltage Lockout Hysteresis 5) VIN_MIN Conditions VIN rising Min. Typ. Max. Unit 3.2 3.4 3.7 V VIN_MIN_HYST 300 mV Shutdown Supply Current ISD VEN=0V 0.1 1 µA Supply Current IQ VEN=5V, VFB=1.2V 120 150 µA VFB 3.7V