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ADP1850

Analog Integrations Corporation
Part Number ADP1850
Manufacturer Analog Integrations Corporation
Description DC-to-DC Synchronous Buck Controller
Published Jan 31, 2011
Detailed Description Wide Range Input, Dual/Two-Phase, DC-to-DC Synchronous Buck Controller www.DataSheet4U.com ADP1850 FEATURES Wide range ...
Datasheet PDF File ADP1850 PDF File

ADP1850
ADP1850

Overview
Wide Range Input, Dual/Two-Phase, DC-to-DC Synchronous Buck Controller www.
DataSheet4U.
com ADP1850 FEATURES Wide range input: 2.
75 V to 20 V Power stage input voltage: 1 V to 20 V Output voltage range: 0.
6 V up to 90% VIN Output current to more than 25 A per channel Accurate current sharing between channels (interleaved) Programmable frequency: 200 kHz to 1.
5 MHz 180° phase shift between channels for reduced input capacitance ±0.
85% reference voltage accuracy from −40°C to +85°C Integrated boost diodes Power saving mode (PSM) at light loads Accurate power good with internal pull-up resistor Accurate voltage tracking capability Independent channel precision enable Overvoltage and overcurrent limit protection Externally programmable soft start, slope compensation and current sense gain Synchronization input Thermal overload protection Input undervoltage lockout (UVLO) Available in 32-lead 5 mm × 5 mm LFCSP The ADP1850 provides high speed, high peak current drive capability with dead-time optimization to enable energy efficient power conversion.
For low load operation, the device can be configured to operate in power saving mode (PSM) by skipping pulses and reducing switching losses to improve the energy efficiency at light load and standby conditions.
The accurate current limit (±6%) allows the power architect to design within a narrower range of tolerances and can reduce overall converter size and cost.
The ADP1850 provides a configurable architecture capable of wide range input operation to provide the designer with maximum re-use opportunities and improved time to market.
Additional flexibility is provided by external programmability of loop compensation, soft start, frequency setting, power saving mode, current limit and current sense gain can all be programmed using external components.
The ADP1850 includes a high level of integration in a small size package.
The start-up linear regulator and the boot-strap diode for the high side drive are included.
Protection...


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