ADP2301 Series

1.2 A, 20 V, 1.4 MHz non-synchronous step-down switching regulator

Catalog

1.2 A, 20 V, 1.4 MHz non-synchronous step-down switching regulator

Part	Voltage - Output (Max) [Max]	Topology	Current - Output	Output Configuration	Voltage - Input (Min) [Min]	Function	Voltage - Output (Min/Fixed)	Output Type	Frequency - Switching	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Number of Outputs	Supplier Device Package	Package / Case	Synchronous Rectifier	Voltage - Input (Max) [Max]
Analog Devices ADP2301AUJZ-R2	17 V	Buck	1.2 A	Positive	3 V	Step-Down	0.8 V	Adjustable	1.4 MHz	Surface Mount	-40 °C	125 ¯C	1	TSOT-6	SOT-23-6 Thin TSOT-23-6		20 V

Catalog

1.2 A, 20 V, 1.4 MHz non-synchronous step-down switching regulator

Key Features

• 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

• 700 kHz or 1.4 MHz 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

• Integrated bootstrap diode

• See data sheet for additional features

Description

TheADP2300/ 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.APPLICATIONSLDO replacement for digital load applicationsIntermediate power rail conversionCommunications and networkingIndustrial and instrumentationHealthcare and Medical Consumer