Datasheet Linear Technology LT3791IFE-1#TRPBF

Manufacturer	Linear Technology
Series	LT3791-1
Part Number	LT3791IFE-1#TRPBF

60V 4-Switch Synchronous Buck-Boost Controller

Datasheets

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PDF, 312 Kb, Language: en, File uploaded: Sep 19, 2017, Pages: 26
60V 4-Switch Synchronous Buck-Boost Controller

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Packaging

Package	TSSOP-38
Package Code	FE
Package Index	05-08-1772

Parametrics

Architecture	Constant Frequency Current Mode
Design Tools	LTspice File,LTpowerCAD Model
Export Control	no
Features	Resistor Set Frequency, External Synchronization, Input Current Regulation, Output Current Regulation, Input Current Monitor, Output Current Monitor, Output Disconnect
Frequency	700 kHz
Frequency Adjust Range	200kHz - 700kHz
Frequency Sync Range	200kHz - 700kHz
Integrated Inductor	no
Ishutdown	0.1 µA
Isupply	3 mA
Max Phases	12
Monolithic	no
Number of Outputs	1
Operating Temperature Range	-40 to 85 °C
Output Current	10 A
Polyphase	yes
Sense Resistor	Rsense
Synchronous	yes
Topology	Buck-Boost, Buck
Vin Max	60 V
Vin Min	4.7 V
Vout Max	60 V
Vout Maximum	60V
Vout Min	1.2 V

Eco Plan

RoHS

Compliant

Articles

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60V, 4-Switch Synchronous Buck-Boost Controller Regulates Voltage from Wide Ranging Inputs and Charges Batteries at 98.5% Efficiency at 100W+ &mdash LT Journal
PDF, 2.7 Mb, File published: Oct 18, 2012
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60V, 4-Switch Synchronous Buck-Boost Controller Regulates
Voltage from Wide Ranging Inputs and Charges Batteries at
98.5% Efficiency at 100W+
Keith Szolusha The LTВ®3791-1 is a 4-switch synchronous buck-boost DC/DC converter that regulates
both constant voltage and constant current at up to 98.5% efficiency using only a
single inductor. It can deliver well over a hundred watts and features a 60V input
and output rating, making it an ideal DC/DC voltage regulator and battery charger
when both step-up and step-down conversion is needed. In addition to the high
voltage, power and efficiency, it features short-circuit protection, a SYNC pin for
synchronization to an external clock, a CLKOUT pin for driving an external SYNC
pin or for parallel operation, OVLO (overvoltage lockout), SHORT output flag, C/10
detection and output flag for battery chargers, and a CCM pin for discontinuous or
continuous conduction mode. The inclusion of DCM (discontinuous conduction mode)
increases light load efficiency and prevents reverse current when it is undesirable.
120W, 24V 5A OUTPUT BUCK-BOOST
VOLTAGE REGULATOR operates from an input voltage range
of 12V to 58V. Adjustable undervoltage and overvoltage lockout protect
the circuit. It has short-circuit protection and the SHORT output flag indicates The buck-boost converter shown in
FigureВ 1 regulates 24V with 0AвЂ“5A load
at up to 98.5% efficiency (Figure 2). It VIN
12V TO
58V 0.003О©
VIN 1ВµF …

Model Line

Series: LT3791-1 (8)

LT3791EFE-1#PBF LT3791EFE-1#TRPBF LT3791HFE-1#PBF LT3791HFE-1#TRPBF LT3791IFE-1#PBF LT3791IFE-1#TRPBF LT3791MPFE-1#PBF LT3791MPFE-1#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Buck-Boost Regulators > External Power Switch Buck-Boost
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

Other Names:

LT3791IFE-1TRPBF, LT3791IFE-1 TRPBF, LT3791IFE1#TRPBF, LT3791IFE 1#TRPBF