ADI ADP2300AUJZ-R2

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 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 kHz, and the ADP2301 runs at 1.4 MHz. These options allow users to make decisions based on the trade-off between efficiency and total solution size. Current-mode control provides fast and stable line and load transient performance. The ADP2300/ADP2301 devices include 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). The precision enable pin threshold voltage allows the ADP2300/ADP2301 to be easily sequenced from other input/ output supplies. It can also be used as a programmable UVLO input by using a resistive divider.

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

• 1.2 A maximum load current
• ±2% output accuracy over temperature range
• Wide input voltage range: 3.0 V to 20 V
• 700 kHz (ADP2300) or 1.4 MHz (ADP2301) switching frequency options
• High efficiency up to 97%
• 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 compensation and soft start
• Minimum external components
• Undervoltage lockout (UVLO)
• Overcurrent protection (OCP) and thermal shutdown (TSD)
• Available in ultrasmall, 6-lead TSOT package
• Supported by ADIsimPower design tool

• LDO replacement for digital load applications
• Intermediate power rail conversion
• Communications and networking
• Industrial and instrumentation
• Healthcare and medical
• Consumer