LM3100MH ,SIMPLE SWITCHER? Synchronous 1MHz 1.5A Step-Down Voltage Regulator 20-HTSSOP -40 to 125features include V under-CCvoltage lockout, thermal shutdown and gate drive• Thermally Enhanced HTS ..
LM3100MH ,SIMPLE SWITCHER? Synchronous 1MHz 1.5A Step-Down Voltage Regulator 20-HTSSOP -40 to 125features all functions needed to implement a highly• 1.5 A Output Currentefficient, cost effective ..
LM3100MH/NOPB ,SIMPLE SWITCHER? Synchronous 1MHz 1.5A Step-Down Voltage Regulator 20-HTSSOP -40 to 125 SNVS421H–JANUARY 2006–REVISED OCTOBER 20175 Pin Configuration and FunctionsPWP Package20-Pin HTSSO ..
LM3100MHX ,SIMPLE SWITCHER? Synchronous 1MHz 1.5A Step-Down Voltage Regulator 20-HTSSOP -40 to 125Block Diagram..... 94 Revision HistoryNOTE: Page numbers for previous revisions may differ from pag ..
LM3100MHX/NOPB ,SIMPLE SWITCHER? Synchronous 1MHz 1.5A Step-Down Voltage Regulator 20-HTSSOP -40 to 125Maximum Ratings(1)(2)over operating free-air temperature range (unless otherwise noted)MIN MAX UNIT ..
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SIMPLE SWITCHER庐 Synchronous 1MHz 1.5A Step-Down Voltage Regulator
VOUT
CSS REN
RFB1
RFB2
CFB
CVCC
N/C
VIN
BST
GND
N/C
VCC
RON
N/C
COUT
N/C
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LM3100SNVS421H –JANUARY 2006–REVISED OCTOBER 2017
LM3100 Synchronous 1MHz 1.5A Step-Down Voltage Regulator Features Input Voltage Range 4.5Vto36V 1.5A Output Current 0.8V, ±1.5% Reference Integrated40V, Dual N-Channel Buck
Synchronous Switches Low Component Count and Small Solution Size No Loop Compensation Required Ultra-Fast Transient Response Stable With Ceramic and Other Low ESR
Capacitors Programmable Switching Frequencyupto1 MHz Max. Duty Cycle Limited During Start-Up Valley Current Limit Precision Internal Reference for Adjustable Output
Voltage Downto 0.8V Thermal Shutdown Thermally Enhanced HTSSOP-20 Package
Applications 5VDC, 12VDC, 24VDC, 12VAC, and 24VAC
Systems Embedded Systems Industrial Controls Automotive Telematics and Body Electronics Pointof Load Regulators Storage Systems Broadband Infrastructure Direct Conversion from 2/3/4 Cell Lithium
Batteries Systems
DescriptionThe LM3100 Synchronously Rectified Buck Converter
features all functions neededto implementa highly
efficient, cost effective buck regulator capable of
supplying 1.5Ato loads with voltagesas low as 0.8 Dual 40V N-Channel synchronous MOSFET allow for low external component thus complexity and minimizing board space. Theis designedto work exceptionally well with and other very low ESR output capacitors. Constant ON-Time (COT) regulation scheme
requires no loop compensation, resultsin fast load
transient response, and simplifies circuit
implementation. Through the useofa unique design does not rely on output capacitor ESR as do most other COT regulators. The frequency remains nearly constant with line load variations dueto the inverse relationship the input voltage and the on-time. The
operating frequency can be externally programmedto1 MHz. Protection features include VCC under-
voltage lockout, thermal shutdown and gate drive
under-voltage lockout. The partis available ina
Typical
