MP2384GG-Z

MP2384 24V, 4A, Low IQ, Synchronous, Buck Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP2384 is a fully integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter. The MP2384 offers a super-compact solution that achieves 4A of continuous output current over a wide input supply range.        The MP2384 operates at high efficiency over a wide output current load range based on MPS’s proprietary switching loss reduction technique and internal low RDS(ON) power MOSFETs. Adaptive constant-on-time (COT) control mode provides fast transient response and eases loop stabilization. The DC auto-tune loop combined with the remote differential sense provides good load and line regulation. Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and thermal shutdown. The converter requires a minimal number of external components and is available in a QFN11 (2mmx2mm) package.         Wide 4.5V to 24V Operating Input Range 105μA Low Quiescent Current 4A Continuous Output Current Adaptive COT Control for Fast Transient DC Auto-Tune Loop Low RDS(ON) Internal Power MOSFETs Proprietary Switching Loss Reduction Technique Power Good (PG) Indication Fixed 700kHz Switching Frequency Stable with POSCAP and Ceramic Capacitors Internal Soft Start (SS) Output Discharge OCP, OVP, UVP, and Thermal Shutdown with Auto-Retry Available in a QFN-11 (2mmx2mm) Package The MPL-AL6050 Inductor Series Matches Best Performance APPLICATIONS      Security Cameras Portable Devices, XDSL Devices Digital Set-Top Boxes Flat-Panel Televisions 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” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION Efficiency VOUT = 3.3V, L = 3.3µH, DCR = 9mΩ 100 95 Efficiency(%) 90 85 80 VIN=5V VIN=12V VIN=19V 75 70 0.01 MP2384 Rev. 1.01 4/7/2020 0.1 1 Load Current(A) www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 10 1 MP2384 − 24V, 4A, SYNCHRONOUS, BUCK CONVERTER ORDERING INFORMATION Part Number* MP2384GG Package QFN-11 (2mmx2mm) Top Marking See Below MSL Rating 1 * For Tape & Reel, add suffix –Z (e.g.: MP2384GG–Z) TOP MARKING HR: Product code of MP2384GG Y: Year code LLL: Lot number PACKAGE REFERENCE TOP VIEW QFN-11 (2mmx2mm) MP2384 Rev. 1.01 4/7/2020 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 2 MP2384 − 24V, 4A, SYNCHRONOUS, BUCK CONVERTER ABSOLUTE MAXIMUM RATINGS (1) Supply voltage (VIN) ...................................... 26V VSW (DC)................................... -1V to VIN + 0.3V VSW (transient) ................................ -9V for Inductors for more information. PCB Layout Guidelines Efficient PCB layout is critical for stable operation. A four-layer layout is recommended for better thermal performance. For best results, refer to Figure 11 and follow the guidelines below. 1. Place the high-current paths (PGND, VIN, and SW) very close to the device with short, direct, and wide traces. 2. Place the input capacitors as close to VIN and PGND as possible. 3. Place the decoupling capacitor as close to VCC and AGND as possible. MP2384 Rev. 1.01 4/7/2020 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 19 MP2384 − 24V, 4A, SYNCHRONOUS, BUCK CONVERTER 0402 EN FB 11 10 VIN 0805 0402 0402 0402 9 0402 8 1 7 0603 6 2 PGND 3 0603 AGND VCC 4 PGND PGND BST SW 5 PG 0402 Optional VCC Inductor 7mm*6.6mm 0805 0805 Figure 10: Recommended Layout MP2384 Rev. 1.01 4/7/2020 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 20 MP2384 − 24V, 4A, SYNCHRONOUS, BUCK CONVERTER Design Example Table 3 shows a design example when ceramic capacitors are applied. Table 3: Design Example 8V to 24V VIN 3.3V VOUT 4A IOUT The detailed application schematics are shown in Figure 11 through Figure 17. The typical performance and waveforms are shown in the Typical Characteristics section. For more devices applications, please refer to the related evaluation board datasheet. MP2384 Rev. 1.01 4/7/2020 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 21 MP2384 − 24V, 4A, SYNCHRONOUS, BUCK CONVERTER TYPICAL APPLICATION CIRCUITS (10) Figure 11: VIN = 19V, VOUT = 5V/4A Figure 12: VIN = 19V, VOUT = 3.3V/4A Figure 13: VIN = 19V, VOUT = 2.5V/4A MP2384 Rev. 1.01 4/7/2020 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 22 MP2384 − 24V, 4A, SYNCHRONOUS, BUCK CONVERTER TYPICAL APPLICATION CIRCUITS (continued) Figure 14: VIN = 19V, VOUT = 1.8V/4A Figure 15: VIN = 19V, VOUT = 1.5V/4A Figure 16: VIN = 19V, VOUT = 1.2V/4A MP2384 Rev. 1.01 4/7/2020 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 23 MP2384 − 24V, 4A, SYNCHRONOUS, BUCK CONVERTER TYPICAL APPLICATION CIRCUITS (continued) Figure 17: VIN = 19V, VOUT = 1V/4A NOTE: 10) The EN resistor divider sets the VIN threshold to 7.5V. For 5V input applications, change the EN resistor accordingly. MP2384 Rev. 1.01 4/7/2020 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 24 MP2384 − 24V, 4A, SYNCHRONOUS, BUCK CONVERTER PACKAGE INFORMATION QFN-11 (2mmx2mm) PIN 1 ID MARKING PIN 1 ID INDEX AREA BOTTOM VIEW TOP VIEW SIDE VIEW NOTE: 1) LAND PATTERNS OF PIN1 AND PIN6 HAVE THE SAME LENGTH AND WIDTH 2) ALL DIMENSIONS ARE IN MILLIMETERS. 3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETERS MAX. 4) JEDEC REFERENCE IS MO-220, VARIATION VCCD. 5) DRAWING IS NOT TO SCALE. RECOMMENDED LAND PATTERN MP2384 Rev. 1.01 4/7/2020 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 25 MP2384 − 24V, 4A, SYNCHRONOUS, BUCK CONVERTER CARRIER INFORMATION 1 Pin1 1 ABCD 1 1 ABCD ABCD ABCD Feed Direction  Part Number MP2384GG–Z Package Description QFN-11 (2mmx2mm) Quantity/Reel Quantity/Tube Reel Diameter Carrier Tape Width Carrier Tape Pitch 5000 N/A 13in. 12mm 8mm NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MP2384 Rev. 1.01 4/7/2020 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. 26