Datasheet Linear Technology LTC3892-2

Manufacturer	Linear Technology
Series	LTC3892-2

60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller

Datasheets

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PDF, 1.4 Mb, Language: en, File uploaded: Sep 24, 2017, Pages: 38
60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller

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Packaging

	LTC3892EUH-2#PBF	LTC3892EUH-2#TRPBF	LTC3892HUH-2#PBF	LTC3892HUH-2#TRPBF	LTC3892IUH-2#PBF	LTC3892IUH-2#TRPBF	LTC3892MPUH-2#PBF	LTC3892MPUH-2#TRPBF
N	1	2	3	4	5	6	7	8
Package	5x5 QFN-32 Package Outline Drawing	5x5 QFN-32 Package Outline Drawing	5x5 QFN-32 Package Outline Drawing	5x5 QFN-32 Package Outline Drawing	5x5 QFN-32 Package Outline Drawing	5x5 QFN-32 Package Outline Drawing	5x5 QFN-32 Package Outline Drawing	5x5 QFN-32 Package Outline Drawing
Package Code	UH	UH	UH	UH	UH	UH	UH	UH
Package Index	05-08-1693	05-08-1693	05-08-1693	05-08-1693	05-08-1693	05-08-1693	05-08-1693	05-08-1693
Pin Count	32	32	32	32	32	32	32	32

Parametrics

Parameters / Models	LTC3892EUH-2#PBF	LTC3892EUH-2#TRPBF	LTC3892HUH-2#PBF	LTC3892HUH-2#TRPBF	LTC3892IUH-2#PBF	LTC3892IUH-2#TRPBF	LTC3892MPUH-2#PBF	LTC3892MPUH-2#TRPBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC1998A,DC2190A-A,DC2190A-B,DC2493A	DC1998A,DC2190A-A,DC2190A-B,DC2493A	DC1998A,DC2190A-A,DC2190A-B,DC2493A	DC1998A,DC2190A-A,DC2190A-B,DC2493A	DC1998A,DC2190A-A,DC2190A-B,DC2493A	DC1998A,DC2190A-A,DC2190A-B,DC2493A	DC1998A,DC2190A-A,DC2190A-B,DC2493A	DC1998A,DC2190A-A,DC2190A-B,DC2493A
Design Tools	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File	LTspice File,LTpowerCAD File
Export Control	no	no	no	no	no	no	no	no
Features	Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking	Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking	Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking	Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking	Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking	Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking	Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking	Burst Mode, PolyPhase, Resistor Set Frequency, External Synchronization, Tracking
Frequency, kHz	900	900	900	900	900	900	900	900
Frequency Adjust Range	50kHz - 900kHz	50kHz - 900kHz	50kHz - 900kHz	50kHz - 900kHz	50kHz - 900kHz	50kHz - 900kHz	50kHz - 900kHz	50kHz - 900kHz
Frequency Sync Range	75kHz - 850kHz	75kHz - 850kHz	75kHz - 850kHz	75kHz - 850kHz	75kHz - 850kHz	75kHz - 850kHz	75kHz - 850kHz	75kHz - 850kHz
Integrated Inductor	no	no	no	no	no	no	no	no
Ishutdown, µA	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6
Isupply, mA	0.034	0.034	0.034	0.034	0.034	0.034	0.034	0.034
Max Phases	2	2	2	2	2	2	2	2
Monolithic	no	no	no	no	no	no	no	no
Number of Outputs	2	2	2	2	2	2	2	2
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 125	-40 to 125	-40 to 85	-40 to 85	-55 to 125	-55 to 125
Output Current, A	25	25	25	25	25	25	25	25
Output Current 2, A	25	25	25	25	25	25	25	25
Polyphase	yes	yes	yes	yes	yes	yes	yes	yes
Sense Resistor	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR	Rsense, DCR
Switch Current, A	25	25	25	25	25	25	25	25
Switch Current 2, A	25	25	25	25	25	25	25	25
Synchronous	yes	yes	yes	yes	yes	yes	yes	yes
Topology	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Topology 1	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Topology 2	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Vin Max, V	60	60	60	60	60	60	60	60
Vin Min, V	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5
Vout Max, V	59.4	59.4	59.4	59.4	59.4	59.4	59.4	59.4
Vout Max 2, V	59.4	59.4	59.4	59.4	59.4	59.4	59.4	59.4
Vout Maximum	0.99Vin	0.99Vin	0.99Vin	0.99Vin	0.99Vin	0.99Vin	0.99Vin	0.99Vin
Vout Min, V	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
Vout Min 2, V	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
Vref Accuracy Over Temp, %	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5

Eco Plan

	LTC3892EUH-2#PBF	LTC3892EUH-2#TRPBF	LTC3892HUH-2#PBF	LTC3892HUH-2#TRPBF	LTC3892IUH-2#PBF	LTC3892IUH-2#TRPBF	LTC3892MPUH-2#PBF	LTC3892MPUH-2#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LTC3892 LTC3892 LTC3892-1

Design Notes

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60V Low IQ, Dual Output Synchronous Step-Down Controller with Adjustable Gate Drive &mdash DN562
PDF, 307 Kb, File published: Mar 31, 2017
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60V Low IQ, Dual Output Synchronous Step-Down Controller
with Adjustable Gate Drive
Design Note 562
Victor Khasiev
Introduction
The LTC В®3892 is a dual output synchronous buck
controller featuring a wide input voltage range of
4.5V to 60V and an output voltage of 0.8V to 99%
of VIN. The combination of the LTC3892вЂ™s built-in
FET drivers and external FETs yield high efficiency
and high power capability, up to 97% efficiency and
over 60A output current 2. Its robust designвЂ”an IC
operating junction temperature range of вЂ“55В°C to
150В°CвЂ”meets the needs of industrial, automotive,
telecom, military, aerospace and distributed systems. and 3.9ВµA shutdown current, maintaining battery
charge as long as possible. The LTC3892вЂ™s wide
input voltage range satisfies the demanding requirements of industrial and automotive applications,
which are distinguished by their lack of stable, high
quality voltage sources. For example, in automotive
environments, a 12V nominal voltage rail can range
from a low 5V to above 50V during cold starts and
load dumps. The LTC3892вЂ™s ability to sustain the
output in the face of high voltage inputs eliminates …

Model Line

Series: LTC3892-2 (8)

LTC3892EUH-2#PBF LTC3892EUH-2#TRPBF LTC3892HUH-2#PBF LTC3892HUH-2#TRPBF LTC3892IUH-2#PBF LTC3892IUH-2#TRPBF LTC3892MPUH-2#PBF LTC3892MPUH-2#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | High Input Voltage Buck | External Power Switch Buck Controllers | Multiple Output Buck
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators