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GENERAL DESCRIPTION

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.

FEATURES

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 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 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

APPLICATIONS

LDO replacement for digital load applications

Intermediate power rail conversion

Communications and networking

Industrial and instrumentation

Healthcare and medical

Consumer