Datasheet Linear Technology LTC3850IUFD#PBF

Manufacturer	Linear Technology
Series	LTC3850
Part Number	LTC3850IUFD#PBF

Dual, 2-Phase Synchronous Step-Down Switching Controller

Datasheets

PDF, 604 Kb, File uploaded: Jul 31, 2016

Extract from the document

Prices

Packaging

Package	4x5 QFN-28
Package Code	UFD
Package Index	05-08-1712

Parametrics

Architecture	Constant Frequency Current Mode
Demo Boards	DC1126A,DC1185B-A,DC1185B-B,DC1231A-A,DC1231A-B,DC1185A-A
Design Tools	LTspice File,LTpowerCAD File
Export Control	no
Features	PolyPhase, DCR Current Sense, Selectable Switching Frequency, External Synchronization, PLL, Tracking, Power Good
Frequency	500 kHz
Frequency Adjust Range	250kHz - 780kHz
Frequency Sync Range	250kHz - 780kHz
Integrated Inductor	no
Ishutdown	30 µA
Isupply	0.85 mA
Max Phases	2
Monolithic	no
Number of Outputs	2
Operating Temperature Range	-40 to 85 °C
Output Current	25 A
Output Current 2	25 A
Polyphase	yes
Sense Resistor	Rsense, DCR
Switch Current	25 A
Switch Current 2	25 A
Synchronous	yes
Topology	Buck
Topology 1	Buck
Topology 2	Buck
Vin Max	24 V
Vin Min	4 V
Vout Max	6 V
Vout Maximum	6V
Vout Min	0.8 V
Vout Min 2	0.8 V
Vref Accuracy Over Temp	1 %

Eco Plan

RoHS

Compliant

Articles

Download
2-Phase Synchronous Buck Controller Delivers Maximum Features in Minimum Footprint &mdash LT Journal
PDF, 1.2 Mb, File published: Oct 16, 2007
Extract from the document
LвЂ‰DESIGN FEATURES 2-Phase Synchronous Buck Controller
Delivers Maximum Features in
by Eric Gu and Theo Phillips
Minimum Footprint
Introduction
The LTC3850 is a feature-rich dual
channel synchronous step-down
switching regulator available in a 4mm
Г— 4mm QFN package. It is designed to
meet todayвЂ™s high performance power
application needs. With constant
frequency peak current mode control for clean operation over a broad
range of duty cycles, the LTC3850 is a response to customer requests for
a cost-effective solution that balances
ease of use, efficiency, precision and
performance. Familiar Features,
and Some New Ones CCM BURST
10mV/DIV
DCM
1Вµs/DIV Figure 1. Three modes of operation.
Continuous mode features predictable,
constant frequency operation. Burst ModeВ®
operation has the best light-load efficiency, …

Model Line

Series: LTC3850 (16)

LTC3850EGN#PBF LTC3850EGN#TRPBF LTC3850EGN-1#PBF LTC3850EGN-1#TRPBF LTC3850EUF#PBF LTC3850EUF#TRPBF LTC3850EUFD#PBF LTC3850EUFD#TRPBF LTC3850IGN#PBF LTC3850IGN#TRPBF LTC3850IGN-1#PBF LTC3850IGN-1#TRPBF LTC3850IUF#PBF LTC3850IUF#TRPBF LTC3850IUFD#PBF LTC3850IUFD#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers | Multiple Output Buck

Other Names:

LTC3850IUFDPBF, LTC3850IUFD PBF

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