ADP2300 1.2 A, 20 V, 700 kHz Nonsynchronous Step-down Switching Regulator

The ADP2300/ADP2301 are compact, constant-frequency, current-mode, step-down dc-to-dc regulators with integrated power MOSFET. The ADP2300/ADP2301 devices run from any input voltage from 3.0 V up to 20 V, making them suitable for a wide range of applications. A precise, low voltage internal reference makes these devices ideal for generating a regulated output voltage as low as 0.8 V, with ±2% accuracy, for up to 1.2 A load current.

There are two frequency options: the ADP2300 runs at 700 kHz and the ADP2301 runs at 1.4 MHz. These options allow users to make decisions based on the trade-off between efficiency and the size of the total solution. Current-mode control provides fast and stable line and load transient performance. Each ADP2300/ ADP2301 device includes an internal soft start to prevent inrush current at power up. Other key safety features include short-circuit protection, thermal shutdown (TSD) and input undervoltage lockout (UVLO). Precision enable pin threshold voltage allows ADP2300/ADP2301 to be easily sequenced from other input/ output supplies, or the enable pin can be used as a programmable UVLO input by using resistive divider.

The ADP2300/ADP2301 are available in a 6-lead TSOT package and are rated for the −40°C to +125°C junction temperature range.

Applications
  • LDO replacement for digital load applications
  • Intermediate power rail conversion
  • Communications and networking
  • Industrial and instrumentation
  • Healthcare and Medical
  • Consumer
Features and Benefits
  • High efficiency, up to 91%
  • 1.2 A maximum load current
  • ±2% output accuracy over temperature range
  • Wide input voltage range: 3.0 V to 20 V
  • 700kHz (ADP2300) or 1.4MHz (ADP2301) switching frequency options
  • Current-mode control architecture
  • Output voltage from 0.8 V to 0.85×VIN
  • Automatic PFM/PWM mode switching
  • Precision enable pin with hysteresis
  • Integrated high-side MOSFET
  • Available in ultrasmall, 6-lead TSOT package
  • See data sheet for additional features
Power Management
Design Tools
Reference Designs
Data Sheets
Documentnote
ADP2300/ADP2301: 1.2 A, 20 V, 700 kHz/1.4 MHz, Nonsynchronous Step-Down Regulator Data Sheet (Rev. C)PDF 683 kB
Application Notes
Documentnote
AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators (Rev. 0)PDF 640 kB
AN-1083: Designing an Inverting Buck Boost Using the ADP2300 and ADP2301 Switching Regulators (Rev. A)PDF 217 kB
User Guides
Documentnote
UG-179: Evaluation Board for the 1.2 A, 20 V Nonsynchronous Step-Down RegulatorsPDF 422 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADP2300AUJZ-R2 Production6 ld TSOTREEL 250-40 to 125C1.261.26Y
ADP2300AUJZ-R7 Production6 ld TSOTREEL 3000-40 to 125C00.81Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
ADP2300-EVALZEvaluation Board60Y
Reference Materials
ADP2300/ADP2301:1.2 A、20 V,700 kHz/1.4 MHz、异步降压调节器 数据手册 (Rev. C) adp2300
ADP2300/ADP2301: 1.2 A, 20 V, 700 kHz/1.4 MHz, Nonsynchronous Step-Down Regulator Data Sheet (Rev. C) adp2300
ADP230x Inverting Buck-Boost Regulator Design Tool adp2300
ADP230x Buck Regulator Design Tool adp2300
CN0359 Design & Integration Files adg1211
CN0190 设计和集成文件 adp2108
CN0198 设计和集成文件 adp2300
CN0183 设计和集成文件 adp2300
AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators (Rev. 0) ad7610
AN-1141: 用开关调节器为双电源精密ADC供电 (Rev. 0) adp1610
AN-1083: 利用开关调节器ADP2300和ADP2301设计反相降压/升压转换器 (Rev. A) adp2300
AN-1083: Designing an Inverting Buck Boost Using the ADP2300 and ADP2301 Switching Regulators (Rev. A) adp2300
UG-179: Evaluation Board for the 1.2 A, 20 V Nonsynchronous Step-Down Regulators adp2300
CN-0359:全自动高性能电导率测量系统 adg1211
CN-0183:采用+12 V至±5 V电源的精密、16位双极性输出电压源 adp2300
CN-0190:具有6 V至14 V输入且性能鲁棒的多电压、高效率、25 W通用电源模块 adp2108