Family Feature Sheet Rev. 1.01 / June 2014 ZSPM4023/ZSPM4022 24V/12V Synchronous DC/DC Buck Regulator Power Management ICs Power and Precision ZSPM4023/ZSPM4022 24V/12V Synchronous DC/DC Buck Regulator Brief Description Benefits The ZSPM4023 and ZSPM4022 product families are constant-frequency, synchronous DC/DC buck regulators featuring adaptive on-time control architecture. The output voltage is adjustable down to 0.8V. The ZSPM4023 family operates over a supply range of 4.5V to 28V (24V typical). The supply range for the ZSPM4022 family is 4.5V to 19V (12V typical). Both families have an internal linear regulator that provides a regulated 5V to power the internal control circuitry. They operate at a constant 600kHz switching frequency in continuous-conduction mode. Each IC family includes three product versions that support different maximum load capabilities: 6A, 9A, and 12A. Under medium to heavy loads, the ZSPM4023 and ZSPM4022 provide high efficiency and ultra-fast transient response via their rapid-control architecture. Under light load conditions, they maintain high efficiency and a superior transient response by transitioning to variable-frequency, discontinuous mode operation with their ultra-light-load architecture. Both families offer a full suite of protection features to ensure protection of the IC during fault conditions. These include under-voltage lockout to ensure proper operation under power-sag conditions; thermal shutdown; internal soft-start to reduce inrush current; foldback current limiting; and “hiccup” mode short-circuit protection. A power good (PG) output pin is provided to allow simple sequencing. Pin Configuration Ultra-light load efficiency – up to 80% at 10mA Up to 95% efficiency Feedback reference accuracy as high as ±1% Features Rapid-control architecture enables operation with a high input/output voltage ratio (e.g., for the ZSPM4023, VIN = 28V and VOUT = 0.8V) and a small output capacitance Adjustable output voltage from 0.8V to 5.5V Universally compatible with most output capacitors – stable with zero to high ESR Power good (PG) output Foldback current limiting and “hiccup” mode short-circuit protection Safe start-up into pre-biased loads Available Support Evaluation Kit Support documentation Physical Characteristics Switching frequency: 600kHz Junction temperature: –40C to +125C 28-pin QFN package (5mm 6mm) VIN 12A 9A 6A 4.5V to 19V ZSPM4022-12 ZSPM4022-09 ZSPM4022-06 4.5V to 28V ZSPM4023-12 ZSPM4023-09 ZSPM4023-06 Example Application Circuit: ZSPM4023-12 For more information, contact ZMDI via [email protected]. © 2014 Zentrum Mikroelektronik Dresden AG — Rev. 1.01 — June 27, 2014. All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice. ZSPM4023/ZSPM4022 24V/12V Synchronous DC/DC Buck Regulator Efficiency Graphs ZSPM4022/4023 100 1.8V 1.5V 1.2V 1.0V 0.9V 0.8V 75 70 65 60 85 80 75 70 65 60 55 50 6 9 12 0 15 3 80 75 70 0 75 70 55 50 50 9 2 4 6 8 10 70 60 75 70 65 0 85 80 75 70 65 80 75 70 65 55 50 5 6 7 8 12 0 1 2 3 4 5 6 OUTPUT CURRENT (A) 7 8 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.8V 85 50 4 10 90 50 3 8 95 60 2 6 100 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.8V 55 OUTPUT CURRENT (A) 4 Efficiency (VIN = 5V) vs. Output Current 55 1 2 Efficiency (VIN = 12V) vs. Output Current 60 0 VIN = 5V OUTPUT CURRENT (A) 90 65 80 12 EFFICIENCY (%) 75 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.8V 85 OUTPUT CURRENT (A) 95 EFFICIENCY (%) 80 15 Efficiency (VIN = 5V) vs. Output Current 55 100 85 12 50 Efficiency (VIN = 24V) vs. Output Current 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.8V 9 60 VIN = 12V 0 12 6 90 65 55 90 3 95 OUTPUT CURRENT (A) EFFICIENCY (%) 15 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.8V 80 60 95 VIN = 5V 100 85 60 6 65 OUTPUT CURRENT (A) 90 VIN = 24V 3 12 95 65 0 9 100 EFFICIENCY (%) EFFICIENCY (%) ZSPM402x-09 9A Max. Load 85 6 Efficiency (VIN = 12V) vs. Output Current 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.8V 90 70 OUTPUT CURRENT (A) Efficiency (VIN = 24V) vs. Output Current 95 75 50 EFFICIENCY (%) 3 80 55 VIN = 12V 50 0 85 60 55 VIN = 24V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.8V 90 EFFICIENCY (%) 80 95 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.8V 90 EFFICIENCY (%) 85 100 95 5.0V 3.3V 2.5V 90 OUTPUT CURRENT (A) ZSPM402x-06, 6A Max. Load Efficiency (VIN = 5V) vs. Output Current Efficiency (VIN = 12V) vs. Output Current Efficiency (VIN = 24V) vs. Output Current 95 EFFICIENCY (%) ZSPM402x-12, 12A Max. Load ZSPM4023 VIN = 5V 0 1 2 3 4 5 6 7 8 OUTPUT CURRENT (A) © 2014 Zentrum Mikroelektronik Dresden AG — Rev. 1.01 — June 27, 2014. All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice. ZSPM4023/ZSPM4022 24V/12V Synchronous DC/DC Buck Regulator ZSPM4023/ZSPM4022 Functional Diagram Typical Applications Servers, workstations Routers, switches, and telecommunication equipment Base stations STB, high-end consumer electronics Distributed point-of-load Ordering Information Sales Code Description Package ZSPM4022AA1W06 ZSPM4022-06, QFN28 5mmx6mm, 6A max. — Temperature range: –40C to +125C 7” Reel with 1000 ICs ZSPM4022AA1W09 ZSPM4022-09, QFN28 5mmx6mm, 9A max. — Temperature range: –40C to +125C 7” Reel with 1000 ICs ZSPM4022AA1W12 ZSPM4022-12, QFN28 5mmx6mm, 12A max. — Temperature range: –40C to +125C 7” Reel with 1000 ICs ZSPM4023AA1W06 ZSPM4023-06, QFN28 5mmx6mm, 6A max. — Temperature range: –40C to +125C 7” Reel with 1000 ICs ZSPM4023AA1W09 ZSPM4023-09, QFN28 5mmx6mm, 9A max. — Temperature range: –40C to +125C 7” Reel with 1000 ICs ZSPM4023AA1W12 ZSPM4023-12, QFN28 5mmx6mm, 12A max.— Temperature range: –40C to +125C 7” Reel with 1000 ICs ZSPM402x-yy-KIT Kit Evaluation Kit, including ZSPM402x-yy Evaluation Board (substitute product number for ZSPM402x-yy when ordering; e.g., ZSPM4022-06-KIT) Sales and Further Information www.zmdi.com [email protected] Zentrum Mikroelektronik Dresden AG Global Headquarters Grenzstrasse 28 01109 Dresden, Germany ZMD America, Inc. 1525 McCarthy Blvd., #212 Milpitas, CA 95035-7453 USA Central Office: Phone +49.351.8822.306 Fax +49.351.8822.337 European Technical Support Phone +49.351.8822.7.772 Fax +49.351.8822.87.772 DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Zentrum Mikroelektronik Dresden AG (ZMD AG) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. The information furnished hereby is believed to be true and accurate. However, under no circumstances shall ZMD AG be liable to any customer, licensee, or any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever arising out of or in any way related to the furnishing, performance, or use of this technical data. ZMD AG hereby expressly disclaims any liability of ZMD AG to any customer, licensee or any other third party, and any such customer, licensee and any other third party hereby waives any liability of ZMD AG for any damages in connection with or arising out of the furnishing, performance or use of this technical data, whether based on contract, warranty, tort (including negligence), strict liability, or otherwise. European Sales (Stuttgart) Phone +49.711.674517.55 Fax +49.711.674517.87955 ZMD FAR EAST, Ltd. 3F, No. 51, Sec. 2, Keelung Road 11052 Taipei Taiwan USA Phone 1.855.275.9634 Zentrum Mikroelektronik Dresden AG, Japan Office 2nd Floor, Shinbashi Tokyu Bldg. 4-21-3, Shinbashi, Minato-ku Tokyo, 105-0004 Japan Phone +1.408.883.6310 Fax +1.408.883.6358 Phone +81.3.6895.7410 Fax +81.3.6895.7301 Phone +886.2.2377.8189 Fax +886.2.2377.8199 Zentrum Mikroelektronik Dresden AG, Korea Office U-space 1 Building 11th Floor, Unit JA-1102 670 Sampyeong-dong Bundang-gu, Seongnam-si Gyeonggi-do, 463-400 Korea Phone +82.31.950.7679 Fax +82.504.841.3026 © 2014 Zentrum Mikroelektronik Dresden AG — Rev. 1.01 — June 27, 2014. All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.