Datasheet Analog Devices ADP1851

Wide Range Input, Synchronous,
Step-Down DC-to-DC Controller
ADP1851 Data Sheet
FEATURES TYPICAL OPERATION CIRCUIT APPLICATIONS
Intermediate bus and POL systems requiring sequencing and
tracking, including
Telecom base station and networking
Industrial and instrumentation
Medical and healthcare GENERAL DESCRIPTION
The ADP1851 is a wide range input, dc-to-dc, synchronous
buck controller capable of running from commonly used 3.3 V
to 12 V (up to 20 V) voltage inputs. The device nominally
operates in current mode with valley current sensing providing
the fastest step response for digital loads. It can also be configured as a voltage mode controller with low noise and crosstalk
for sensitive loads.
The ADP1851 is ideal in system applications requiring multiple
output voltages. The ADP1851 includes a synchronization feature
to eliminate beat frequencies between switching devices. It also
provides accurate tracking capability between supplies and
includes precision enable and power-good functions for simple,
robust sequencing.
Rev. B VIN RRAMP
RAMP VIN EN DH …