ADP2300 Datasheet | Analog Devices

Data Sheet 1.2 A, 20 V, 700 k Hz/1.4 MHz, Nonsynchronous Step-Down Regulator ADP2300/ADP2301 Features 1.2 A maximum load current ±2% output accuracy over temperature range Wide input voltage range: 3.0 V to 20 V 700 k Hz (ADP2300) or 1.4 MHz (ADP2301) switching frequency options High efficiency up to 91% 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 Integrated bootstrap diode Internal pensation and soft start Minimum external ponents Undervoltage lockout (UVLO) Overcurrent protection (OCP) and thermal shutdown (TSD) Available in ultrasmall, 6-lead TSOT package Supported by ADIsim Power™ design tool APPLICATIONS LDO replacement for digital load applications Intermediate power rail conversion munications and networking Industrial and instrumentation Healthcare and medical Consumer GENERAL DESCRIPTION The ADP2300/ADP2301 are pact, constant-frequency, current-mode, step-down dc-to-dc regulators with integrated power MOSFET. The ADP2300/ADP2301 devices run from input voltages of 3.0 V 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 k Hz, and the ADP2301 runs at 1.4 MHz. These options allow users to make decisions based on the trade-off between efficiency and 08342-001 TYPICAL APPLICATIONS CIRCUIT 3.0V TO 20V VIN ADP2300/ SW ADP2301 ON OFF VOUT 100 95 90 85 80 75 70 65 60 0 Figure 1. f SW = 1.4MHz f SW = 700k Hz VIN = 12V VOUT = 5.0V 0.2 0.4 0.6 0.8 1.0 1.2 IOUT (A) Figure 2. Efficiency vs. Output Current EFFICIENCY (%) 08342-069 total solution size. Current-mode control provides fast and stable line and load transient performance. The ADP2300/ADP2301 devices...