Datasheet ADP5075 (Analog Devices)

800 mA, DC-to-DC Inverting Regulator Data Sheet ADP5075 FEATURES TYPICAL APPLICATION CIRCUIT Wide input voltage range: 2.85 V to 15 V CVREF Adjustable negative output to VIN − 39 V AVIN VREF Integrated 800 mA main switch VIN PVIN RFB 1.2 MHz/2.4 MHz switching frequency with optional external CIN frequency synchronization from 1.0 MHz to 2.6 MHz ADP5075 FB RFT Resistor programmable soft start timer ON OFF EN Slew rate control for lower system noise D1 SW VOUT Precision enable control SS C R L1 OUT UVLO, OCP, OVP, and TSD protection C COMP SLEW 1.61 mm × 2.18 mm, 12-ball WLCSP CC −40°C to +125°C junction temperature range VREG SYNC/FREQ C Supported by the ADIsimPower t ool set VREG GND
001
APPLICATIONS
12819- Figure 1.
Bipolar amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and multiplexers Charge coupled device (CCD) bias supplies Optical module supplies Radio frequency (RF) power amplifier (PA) bias GENERAL DESCRIPTION
The ADP5075 is a high performance dc-to-dc inverting regulator Other key safety features in the ADP5075 include overcurrent used to generate negative supply rails. protection (OCP), overvoltage protection (OVP), thermal The input voltage range of 2.85 V to 15 V supports a wide variety of shutdown (TSD), and input undervoltage lockout (UVLO). applications. The integrated main switch enables the generation of The ADP5075 is available in a 12-bal WLCSP and is rated for a an adjustable negative output voltage down to 39 V below the input −40°C to +125°C junction temperature range. voltage.
Table 1. Related Devices
The ADP5075 operates at a pin selected 1.2 MHz/2.4 MHz
Boost Inverter
switching frequency. The ADP5075 can synchronize with an
Device Switch (A) Switch (A) Package
external oscil ator from 1.0 MHz to 2.6 MHz to ease noise ADP5070 1.0 0.6 20-lead LFCSP (4 mm × filtering in sensitive applications. The regulator implements 4 mm) and 20-lead TSSOP programmable slew rate control circuitry for the MOSFET ADP5071 2.0 1.2 20-lead LFCSP (4 mm × driver stage to reduce electromagnetic interference (EMI). 4 mm) and 20-lead TSSOP ADP5075 Not 0.8 12-ball WLCSP The ADP5075 includes a fixed internal or resistor programmable applicable (1.61 mm × 2.18 mm) soft start timer to prevent inrush current at power-up. During shutdown, the regulator completely disconnects the load from the input supply to provide a true shutdown.
Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 ©2015–2017 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com
Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION PWM MODE PSM MODE UNDERVOLTAGE LOCKOUT (UVLO) OSCILLATOR AND SYNCHRONIZATION INTERNAL REGULATORS PRECISION ENABLING SOFT START SLEW RATE CONTROL CURRENT-LIMIT PROTECTION OVERVOLTAGE PROTECTION THERMAL SHUTDOWN APPLICATIONS INFORMATION ADIsimPOWER DESIGN TOOL COMPONENT SELECTION Feedback Resistors Output Capacitor Input Capacitor VREG Capacitor VREF Capacitor Soft Start Resistor Diodes Inductor Selection Loop Compensation COMMON APPLICATIONS LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE