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LM5008MM/NOPB |LM5008MMNOPBNSCN/a880avai9.5-95V Wide Vin, 350mA Constant On-Time Non-Synchronous Buck Regulator 8-VSSOP -40 to 125
LM5008MM/NOPB |LM5008MMNOPBTIN/a8000avai9.5-95V Wide Vin, 350mA Constant On-Time Non-Synchronous Buck Regulator 8-VSSOP -40 to 125
LM5008MMX/NOPB |LM5008MMXNOPBNSCN/a880avai9.5-95V Wide Vin, 350mA Constant On-Time Non-Synchronous Buck Regulator 8-VSSOP -40 to 125
LM5008SD/NOPB |LM5008SDNOPBNSCN/a90avai9.5-95V Wide Vin, 350mA Constant On-Time Non-Synchronous Buck Regulator 8-WSON


LM5008MM/NOPB ,9.5-95V Wide Vin, 350mA Constant On-Time Non-Synchronous Buck Regulator 8-VSSOP -40 to 125Block Diagram7V SERIESLM50089.5 -95VREGULATORVInput CC8 7VINSDC1 C5C3THERMALUVLOSHUTDOWNON TIMERR ..
LM5008MM/NOPB ,9.5-95V Wide Vin, 350mA Constant On-Time Non-Synchronous Buck Regulator 8-VSSOP -40 to 125 SNVS280H–APRIL 2004–REVISED DECEMBER 20165 Pin Configuration and FunctionsDGK Package NGU Package8 ..
LM5008MMX/NOPB ,9.5-95V Wide Vin, 350mA Constant On-Time Non-Synchronous Buck Regulator 8-VSSOP -40 to 125features1• Integrated 100-V, N-Channel Buck Switchall of the functions needed to implement a low-co ..
LM5008SD ,High Voltage (100V) Step Down Switching RegulatorLM5008 High Voltage (100V) Step Down Switching RegulatorOctober 2004LM5008High Voltage (100V) Step ..
LM5008SD/NOPB ,9.5-95V Wide Vin, 350mA Constant On-Time Non-Synchronous Buck Regulator 8-WSON Block Diagram..... 712 Mechanical, Packaging, and Orderable7.3 Feature Description...... 8Informati ..
LM5009MM ,9.5-95V Wide Vin, 150mA Constant On-Time Non-Synchronous Buck Regulator 8-VSSOP -40 to 125 SNVS402H–FEBRUARY 2006–REVISED OCTOBER 20155 Pin Configuration and FunctionsDGK, NGU Packages8-Pin ..
LP2987AIMM-3.2 ,Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with Programmable Power-On Reset DelayLP2987/LP2988 Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with ProgrammablePower-On Rese ..
LP2987AIMM-3.3 ,Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with Programmable Power-On Reset DelayFeaturesn Ultra low dropout voltageThe LP2987/8 are fixed-output 200 mA precision LDO volt-age regu ..
LP2987AIMM-3.8 ,Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with Programmable Power-On Reset DelayFeaturesn Ultra low dropout voltageThe LP2987/8 are fixed-output 200 mA precision LDO volt-age regu ..
LP2987AIMM-5.0 ,Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with Programmable Power-On Reset DelayLP2987/LP2988 Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with ProgrammablePower-On Rese ..
LP2987AIMM-5.0-NOPB ,Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with Programmable Power-On Reset Delay 8-VSSOP -40 to 125Electrical specifications do not applywhen operating the device outside of its rated operating cond ..
LP2987AIMMX-3.0 ,Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with Programmable Power-On Reset DelayLP2987/LP2988 Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with ProgrammablePower-On Rese ..


LM5008MM/NOPB-LM5008MMX/NOPB-LM5008SD/NOPB
9.5-95V Wide Vin, 350mA Constant On-Time Non-Synchronous Buck Regulator 8-VSSOP -40 to 125
VIN
VCC
RTN TIMER
DRIVER
VIN
BST
LEVEL
SHIFT
SD /
RON
2.5V
THERMAL
SHUTDOWN
0.50A
BUCK
SWITCH
CURRENT
SENSE
COMPLETE
RCL
STARTRCL
COMPLETE
START
Ron
9.5 -95V
Input
LM5008

UVLO
UVLO
REGULATION
COMPARATOR
OVER-VOLTAGE
COMPARATOR
2.875V
COMPLETE
START
300 ns MIN OFF
TIMER
7V SERIES
REGULATOR
CURRENTLIMIT
OFFTIMER
SHUTDOWNCLRSETS
RON
RCL
VOUT2
VOUT1
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LM5008

SNVS280H –APRIL 2004–REVISED DECEMBER
LM5008 High-Voltage, 100-V Step-Down Switching Regulator Features
Integrated 100-V, N-Channel Buck Switch Internal VCC Regulator No Loop Compensation Required Ultra-Fast Transient Response On-Time Varies Inversely With Line Voltage Operating Frequency Remains Constant With
Varying Line Voltage and Load Current Adjustable Output Voltage Highly Efficient Operation Precision Internal Reference Low Bias Current Intelligent Current Limit Protection Thermal Shutdown 8-Pin VSSOP and 8-Pin WSON-8(4 mm×4 mm)
Packages Applications Non-Isolated Telecommunication Buck Regulators Secondary High Voltage Post Regulators 42-V Automotive Systems Description
The LM5008 step-down switching regulator features
allof the functions neededto implementa low-cost,
efficient, buck bias regulator. This high voltage
regulator contains an 100-V N-channel buck switch.
The deviceis easyto implement andis provided
the 8-pin VSSOP and the thermally enhanced 8-pin
WSON packages. The regulator is based on
hysteretic control scheme using an on-time inversely
proportionalto VIN. This feature allows the operating
frequency to remain relatively constant.
hysteretic control requires no loop compensation.
intelligent current limitis implemented with forced
time, whichis inversely proportionalto VOUT.
scheme ensures short-circuit protection while
providing minimum foldback. Other protection
features include: thermal shutdown, VCC undervoltage
lockout, gate drive undervoltage lockout,
maximum duty cycle limiter.
Device Information(1)

(1) Forall available packages, see the orderable addendum
the endofthe data sheet.
Typical Application Circuit and Block Diagram
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