MP2330HGTL-Z

MP2330H 24V, 3A, 1.2MHz, Synchronous Buck Converter DESCRIPTION FEATURES The MP2330H is a fully integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. The MP2330H offers a very compact solution that achieves 3A of continuous output current with excellent load and line regulation over a wide input range. The MP2330H uses synchronous mode operation for higher efficiency over the output current load range.               Constant-on-time (COT) control operation provides very fast transient response, easy loop design, and very tight output regulation. Full protection features include short-circuit protection (SCP), over-current protection (OCP), under-voltage protection (UVP), and thermal shutdown. Wide 4.2V to 24V Operating Input Range 75mΩ/40mΩ Low RDS(ON) Internal Power MOSFETs 200µA Low IQ High-Efficiency Synchronous Mode Operation Fast Load Transient Response 1.2MHz Switching Frequency TON Extension Forced PWM Operation Programmable Soft-Start Time Power Good (PG) Indication Over-Current Protection (OCP) and Hiccup Pre-Bias Start-Up Thermal Shutdown Available in a SOT583 (1.6mmx2.1mm) Package APPLICATIONS The MP2330H requires a minimal number of readily available, standard, external components and is available in a space-saving SOT583 package.     Game Consoles Digital Set-Top Boxes Flat-Panel Television and Monitors General Purposes All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are trademarks of Monolithic Power Systems, Inc. or its subsidiaries. TYPICAL APPLICATION Efficiency VOUT = 3.3V, L = 1.5μH, DCR = 4.3mΩ R4 20Ω C1 22µF C3 1µF L1 1.5 µH PG PG C2 44µF MP2330H R3 20kΩ C4 6.8nF SS 3.3V/3A R1 40.2kΩ R2 13kΩ EFFICIENCY (%) 19V 100 95 90 85 80 75 70 65 60 55 50 45 40 Vin=5V Vin=12V Vin=19V Vin=24V 0 0.5 1 1.5 2 2.5 3 OUTPUT CURRENT (A) MP2330H Rev. 1.0 www.MonolithicPower.com 10/3/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 1 MP2330H – 24V, 3A, SYNCHRONOUS BUCK CONVERTER ORDERING INFORMATION Part Number* MP2330HGTL Package SOT583 (1.6mmx2.1mm) Top Marking See Below * For Tape & Reel, add suffix –Z (e.g.: MP2330HGTL–Z). TOP MARKING BCK: Product code of MP2330HGTL Y: Year code LLL: Lot number PACKAGE REFERENCE TOP VIEW PG 1 8 FB IN 2 1 6 SS 7 SW 3 6 EN GND 4 5 BST SOT583 (1.6mmx2.1mm) MP2330H Rev. 1.0 www.MonolithicPower.com 10/3/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 2 MP2330H – 24V, 3A, SYNCHRONOUS BUCK CONVERTER PIN FUNCTIONS Package Pin # Name 1 PG 2 IN 3 SW 4 GND 5 BST 6 EN 7 SS 8 FB Description Power good output. The output of PG is an open drain. Decouple PG with a 1nF capacitor. Supply voltage. The MP2330H operates from a 4.2V to 24V input rail. A capacitor (C1) is required to decouple the input rail. Connect IN using a wide PCB trace. Switch output. Connect SW using a wide PCB trace. System ground. GND is the reference ground of the regulated output voltage and requires extra care during the PCB layout. Connect GND with copper traces and vias. Bootstrap. Connect a 1µF BST capacitor and a resistor between SW and BST to form a floating supply across the high-side switch driver. Enable. Drive EN high to enable the MP2330H. For automatic start-up, connect EN to VIN through a 604kΩ pull-up resistor. Soft start. Connect an external capacitor to SS to program the soft-start time for the switch-mode regulator. Feedback. Connect FB to the tap of an external resistor divider from the output to GND to set the output voltage. ABSOLUTE MAXIMUM RATINGS (1) VIN .................................................. -0.3V to 26V VSW ........-0.3V (-6.5V for