Datasheet Linear Technology LTC3857EGN-1#PBF

Low I_Q, Dual, 2-Phase Synchronous Step-Down Controller

Datasheets

PDF, 434 Kb, Language: en, File uploaded: Sep 23, 2017, Pages: 38
Low IQ, Dual, 2-Phase Synchronous Step-Down Controller

Extract from the document

Architecture	Constant Frequency Current Mode
Demo Boards	DC1352A-A
Design Tools	LTspice Model,LTpowerCAD File
Export Control	no
Features	Burst Mode, DCR Current Sense, Resistor Set Frequency, External Synchronization, Power Good
Frequency	850 kHz
Frequency Adjust Range	50kHz - 900kHz
Frequency Sync Range	75kHz - 850kHz
Integrated Inductor	no
Ishutdown	0.01 µA
Isupply	0.05 mA
Max Phases	2
Monolithic	no
Number of Outputs	2
Operating Temperature Range	0 to 85 °C
Output Current	25 A
Output Current 2	25 A
Over Voltage Protection	40 V
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	38 V
Vin Min	4 V
Vout Max	24 V
Vout Maximum	24V
Vout Min	0.8 V
Vout Min 2	.8 V
Vref Accuracy Over Temp	1 %

RoHS

Compliant

Series: LTC3857-1 (4)

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

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