JW5211

JW5211 1.2A, 6V, 1.5MHz, 40uA IQ Synchronous Step-Down Converter Parameters Subject to Change Without Notice FEATURES DESCRIPTION The JW ®5211 is a current mode monolithic buck switching regulator. Operating with an input range of 2.5V-6V, the JW5211 delivers 1.2A of continuous output current with integrated P-Channel and N-Channel MOSFETs. The internal synchronous power switches provide high efficiency. At light loads, the regulator operate in low frequency to maintain high efficiency and low output ripples. Current mode control provides tight load transient response and cycle-by-cycle current limit. The JW5211 guarantees robustness with hiccup output short-circuit protection, FB short-circuit protection, start-up current run-away protection, input under voltage lockout protection, hot-plug in protection, and thermal protection. The JW5211 provides output power good indication which is only available in SOT23-6 package. The JW5211 is available in 5-pin TSOT23-5 SOT23-5 or 6-pin SOT23-6 package, which provides a compact solution with minimal external components. 、











2.5V to 6V operating input range Up to 1.2A output current Up to 94% peak efficiency High efficiency (>85%) at light load Internal Soft-Start 1.5MHz switching frequency Input under voltage lockout Short circuit protection Thermal protection Hot-plug in protection Output POK indication (available in SOT23-6 package) Available in TSOT23-5/SOT23-5/SOT23-6 package APPLICATIONS




5V or 3.3V Point of Load Conversion Set Top Boxes Telecom/Networking Systems Storage Equipment GPU/DDR Power Supply Company’s Logo is Protected, “JW” and “JOULWATT” are Registered Trademarks of JoulWatt technology Inc. TYPICAL APPLICATION JW5211 Rev.1.04 JoulWatt® Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 1 JW5211 JoulWatt ORDER INFORMATION DEVICE 1) PACKAGE JW5211SOTA#TRPBF SOT23-5 JW5211SOTB#TRPBF SOT23-6 JW5211TSOTA#TRPBF TSOT23-5 2) TOP MARKING ： JWA5X YWLLL JWA6X YWLLL JWK4X YWLLL Notes PIN CONFIGURATION TOP VIEW ABSOLUTE MAXIMUM RATING1） EN, FB, POK Pins ...........................................................................................................-0.3V to 7.0 V Vin, SW Pins .....................................................................-0.3V(-1.7V for 20ns) to 7.0V(7.5V for 70ns) Junction Temperature.2) 3) ..................................................................................................................150ºC Lead Temperature............................................................................................................................. 260ºC ESD Susceptibility (Human Body Model) ............................................................................................. 2kV RECOMMENDED OPERATING CONDITIONS Input Voltage VIN .......................................................................... 2.5V to 6V Output Voltage Vout..........................................................................0.6V to VIN Operating Junction Temperature..........................................................-40ºC to 125ºC JW5211 Rev.1.04 JoulWatt® Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2 JW5211 JoulWatt THERMAL PERFORMANCE4） SOT23-5/SOT23-6 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 122 150 0.45 RθJB (ºC/W ) ψJT (ºC/W ) ψJB (ºC/W ) 36.1 2.3 35.3 RθJC (ºC/W ) 130 RθJA (ºC/W ) 220 TSOT23-5 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 122 150 0.45 RθJB (ºC/W ) ψJT (ºC/W ) ψJB (ºC/W ) 36.1 2.3 35.3 RθJC (ºC/W ) 110 RθJA (ºC/W ) 200 ： Note 1) 2) 3) 4) Exceeding these ratings may damage the device. The JW5211 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 JW5211 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 JW5211 Rev.1.04 JoulWatt® Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 3 JW5211 JoulWatt ELECTRICAL CHARACTERISTICS VIN=5V, TA=25 ℃, unless otherwise stated. Item Symbol VIN Under Voltage Lockout Threshold Condition Min. Typ. Max. Units 2.25 2.4 2.55 V VIN_UVLO VIN rising VIN_UVLO_HYST VIN falling VIN Over Voltage Protection Threshold VIN_OVP VIN rising VIN Over Voltage Protection Hysteresis5) VIN_OVP_HYST VIN falling 400 Shutdown Current ISHDN VEN=0V 0.1 1 µA Quiescent Current IQ 40 60 µA 0.6 0.618 V VIN Under Voltage Lockout Hysteresis Regulated Feedback Voltage PFET On Resistance 5) 180 6.5 VEN=2V, VFB=VREF*105% V mV VFB 2.5V