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Texas Instruments LM5161 | Demoboard LM5161PWPFBKEVM

LM5161PWPFBKEVM (Fly-Buck™) Evaluation

Overview

TopologyFlyBuck (Double Buck)
Input voltage36-72 V
Output 112 V / 0.83 A
IC revision00

Description

The LM5161PWPFBKEVM evaluation board provides a fully functional Fly-buck regulator, employing the constant on-time (COT) operating principle. This evaluation board provides a 12-V secondary isolated output voltage over an input range of 36V to 72 V. The circuit delivers secondary output load current to 800mA. The application schematic is setup up to operate from a 48 V nominal bus. The nominal switching frequency is approximately 300 kHz. The high side and low side MOSFETs are integrated inside the LM5161.

Features

36V to 72V input voltage range12V target secondary isolated output voltageDelivers up to 800mA secondary output load current

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
VIN
VOut1(V)
IOut1(mA)
Vbuck(V)
L(µH)
NPRI : NSEC
ISAT(A)
LS(µH)
VT(V (AC))
fswitch(kHz)
Mount
Samples
WCAP-CSGP MLCCs 16 V(DC), 10 nF, ±10%
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Capacitance10 nF
Capacitance±10% 
Rated Voltage16 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
WCAP-CSGP MLCCs 50 V(DC), 22 nF, ±10%
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Capacitance22 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
WCAP-CSGP MLCCs 25 V(DC), 100 nF, ±10%
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Capacitance100 nF
Capacitance±10% 
Rated Voltage25 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3.5 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
WCAP-CSGP MLCCs 25 V(DC), 1 µF, ±10%
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Capacitance1 µF
Capacitance±10% 
Rated Voltage25 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor10 %
Insulation Resistance0.5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
WE-IBTI Isolated Buck Transformers, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
SizeEP10 
Operating Temperature -40 °C up to +125 °C
Length13.34 mm
Width15.24 mm
Height11.43 mm
PackagingTape and Reel 
Input Voltage 36 - 72 V (DC)
Output Voltage 112 V
Output Current 1830 mA
Buck Voltage12 V
Inductance60 µH
Turns Ratio1:1 
Saturation Current2.1 A
Leakage Inductance1.7 µH
Insulation Test Voltage1500 V (AC)
Switching Frequency 300
MountSMT