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24-QFN
Integrated Circuits (ICs)

LT3667HUDD#TRPBF

Active
Analog Devices Inc./Maxim Integrated

40V 400MA STEP-DOWN SWITCHING REGULATOR WITH DUAL FAULT PROTECTED LDOS

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DocumentsTape and Reel PackagingDatasheet+1
24-QFN
Integrated Circuits (ICs)

LT3667HUDD#TRPBF

Active
Analog Devices Inc./Maxim Integrated

40V 400MA STEP-DOWN SWITCHING REGULATOR WITH DUAL FAULT PROTECTED LDOS

Deep-Dive with AI

DocumentsTape and Reel PackagingDatasheet+1

Technical Specifications

Parameters and characteristics for this part

SpecificationLT3667HUDD#TRPBF
Frequency - Switching [Max]2.2 MHz
Frequency - Switching [Min]243 kHz
Mounting TypeSurface Mount
Number of Outputs3
Operating Temperature [Max]150 °C
Operating Temperature [Min]-40 C
Package / Case24-WFQFN Exposed Pad
Supplier Device Package24-QFN (3x5)
TopologyLinear (LDO) (2), Step-Down (Buck) (1)
Voltage - Supply [Max]45 V
Voltage - Supply [Min]1.6 V
Voltage/Current - Output 1400 mA
Voltage/Current - Output 1 [Max]38.6 V
Voltage/Current - Output 1 [Min]1.2 V
Voltage/Current - Output 2200 mA
Voltage/Current - Output 2 [Max]38.6 V
Voltage/Current - Output 2 [Min]0.8 V
Voltage/Current - Output 3200 mA
Voltage/Current - Output 3 [Max]38.6 V
Voltage/Current - Output 3 [Min]0.8 V
w/LED DriverFalse
w/SequencerFalse
w/SupervisorFalse

LT3667 Series

PartNumber of OutputsPackage / CaseVoltage/Current - Output 3 [Max]Voltage/Current - Output 3Voltage/Current - Output 3 [Min]Voltage/Current - Output 2 [Min]Voltage/Current - Output 2 [Max]Voltage/Current - Output 2Frequency - Switching [Min]Frequency - Switching [Max]w/SupervisorSupplier Device PackageMounting TypeTopologyVoltage - Supply [Min]Voltage - Supply [Max]Voltage/Current - Output 1Voltage/Current - Output 1 [Max]Voltage/Current - Output 1 [Min]w/SequencerOperating Temperature [Max]Operating Temperature [Min]w/LED DriverPackage / Case
LT3667IUDD#TRPBF
Analog Devices Inc./Maxim Integrated
LT3667IUDD#TRPBF
3
24-WFQFN Exposed Pad
38.6 V
200 mA
0.8 V
0.8 V
38.6 V
200 mA
243 kHz
2.2 MHz
24-QFN (3x5)
Surface Mount
Linear (LDO) (2)
Step-Down (Buck) (1)
1.6 V
45 V
400 mA
38.6 V
1.2 V
125 °C
-40 C
LT3667IMSE#TRPBF
Analog Devices Inc./Maxim Integrated
LT3667IMSE#TRPBF
3
16-TFSOP
Exposed Pad
38.6 V
200 mA
0.8 V
0.8 V
38.6 V
200 mA
243 kHz
2.2 MHz
16-MSOP-EP
Surface Mount
Linear (LDO) (2)
Step-Down (Buck) (1)
1.6 V
45 V
400 mA
38.6 V
1.2 V
125 °C
-40 C
0.118 in
3 mm
LT3667EMSE#PBF
Analog Devices Inc./Maxim Integrated
LT3667EMSE#PBF
3
16-TFSOP
Exposed Pad
38.6 V
200 mA
0.8 V
0.8 V
38.6 V
200 mA
243 kHz
2.2 MHz
16-MSOP-EP
Surface Mount
Linear (LDO) (2)
Step-Down (Buck) (1)
1.6 V
45 V
400 mA
38.6 V
1.2 V
125 °C
-40 C
0.118 in
3 mm
LT3667HMSE#PBF
Analog Devices Inc./Maxim Integrated
LT3667HMSE#PBF
3
16-TFSOP
Exposed Pad
38.6 V
200 mA
0.8 V
0.8 V
38.6 V
200 mA
243 kHz
2.2 MHz
16-MSOP-EP
Surface Mount
Linear (LDO) (2)
Step-Down (Buck) (1)
1.6 V
45 V
400 mA
38.6 V
1.2 V
150 °C
-40 C
0.118 in
3 mm
LT3667IMSE#PBF
Analog Devices Inc./Maxim Integrated
LT3667IMSE#PBF
3
16-TFSOP
Exposed Pad
38.6 V
200 mA
0.8 V
0.8 V
38.6 V
200 mA
243 kHz
2.2 MHz
16-MSOP-EP
Surface Mount
Linear (LDO) (2)
Step-Down (Buck) (1)
1.6 V
45 V
400 mA
38.6 V
1.2 V
125 °C
-40 C
0.118 in
3 mm
24-QFN
Analog Devices Inc./Maxim Integrated
LT3667HUDD#PBF
3
24-WFQFN Exposed Pad
38.6 V
200 mA
0.8 V
0.8 V
38.6 V
200 mA
243 kHz
2.2 MHz
24-QFN (3x5)
Surface Mount
Linear (LDO) (2)
Step-Down (Buck) (1)
1.6 V
45 V
400 mA
38.6 V
1.2 V
150 °C
-40 C
LT3667EUDD#TRPBF
Analog Devices Inc./Maxim Integrated
LT3667EUDD#TRPBF
3
24-WFQFN Exposed Pad
38.6 V
200 mA
0.8 V
0.8 V
38.6 V
200 mA
243 kHz
2.2 MHz
24-QFN (3x5)
Surface Mount
Linear (LDO) (2)
Step-Down (Buck) (1)
1.6 V
45 V
400 mA
38.6 V
1.2 V
125 °C
-40 C
24-QFN
Analog Devices Inc./Maxim Integrated
LT3667HUDD#TRPBF
3
24-WFQFN Exposed Pad
38.6 V
200 mA
0.8 V
0.8 V
38.6 V
200 mA
243 kHz
2.2 MHz
24-QFN (3x5)
Surface Mount
Linear (LDO) (2)
Step-Down (Buck) (1)
1.6 V
45 V
400 mA
38.6 V
1.2 V
150 °C
-40 C
16-MSOP-EP
Analog Devices Inc./Maxim Integrated
LT3667EMSE#TRPBF
3
16-TFSOP
Exposed Pad
38.6 V
200 mA
0.8 V
0.8 V
38.6 V
200 mA
243 kHz
2.2 MHz
16-MSOP-EP
Surface Mount
Linear (LDO) (2)
Step-Down (Buck) (1)
1.6 V
45 V
400 mA
38.6 V
1.2 V
125 °C
-40 C
0.118 in
3 mm
LT3667EMSE#PBF
Analog Devices Inc./Maxim Integrated
LT3667EMSE#PBF
3
16-TFSOP
Exposed Pad
38.6 V
200 mA
0.8 V
0.8 V
38.6 V
200 mA
243 kHz
2.2 MHz
16-MSOP-EP
Surface Mount
Linear (LDO) (2)
Step-Down (Buck) (1)
1.6 V
45 V
400 mA
38.6 V
1.2 V
125 °C
-40 C
0.118 in
3 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$Updated
DigikeyN/A 0$ 4.591m+
Tape & Reel (TR) 2500$ 4.591m+

Description

General part information

LT3667 Series

The LT3667 is a monolithic triple power supply composed of a 400mA buck switching regulator and two 200mA low dropout linear regulators (LDOs).The buck regulator includes a high efficiency switch, a boost diode, and the necessary oscillator, control and logic circuitry. Current mode topology is used for fast transient response and good loop stability. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping output ripple below 15mV in a typical application.Each LDO supplies 200mA of output current with a typical dropout voltage of 340mV, and each LDO has an accurate resistor programmable current limit.Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting and reverse current protection.The LT3667 is available in a thermally-enhanced 16-Lead MSOP and a 24-Pin 3mm x 5mm QFN package with exposed pad for low thermal resistance.ApplicationsAutomotive Battery RegulationPower for Portable InstrumentationIndustrial SuppliesFault-Protected Sensor Supply