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Partno Mfg Dc Qty AvailableDescript
LM3671MF-1.2 |LM3671MF12NSN/a6800avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MF-1.25 |LM3671MF125NSN/a47646avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MF-1.5 |LM3671MF15NATIONALN/a2980avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MF-1.5 |LM3671MF15NSN/a8829avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MF-1.6 |LM3671MF16NATIONALN/a5980avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MF-1.6 |LM3671MF16NSN/a1500avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MF-1.875 |LM3671MF1875NSN/a6100avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MF-1.875 |LM3671MF1875NSCN/a1406avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MF-1.875 |LM3671MF1875NATIONALN/a15325avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MFX-1.2 |LM3671MFX12NSN/a11454avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MFX-1.25 |LM3671MFX125NSN/a370avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MFX-1.5 |LM3671MFX15NS国半N/a28000avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MFX-1.6 |LM3671MFX16NSN/a1500avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MFX-1.6 |LM3671MFX16NS国半N/a28000avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MFX-1.8 |LM3671MFX18NSN/a2222avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671MFX-1.875 |LM3671MFX1875NSCN/a1406avai2MHz , 600mA Step-Down DC-DC Converter in SOT23-5


LM3671MF-1.25 ,2MHz , 600mA Step-Down DC-DC Converter in SOT23-5applications with com-plex power management systems. Automatic intelligent n Only three tiny surfac ..
LM3671MF-1.5 ,2MHz , 600mA Step-Down DC-DC Converter in SOT23-5features and performance forbatteriesmobile phones and similar portable
LM3671MF-1.5 ,2MHz , 600mA Step-Down DC-DC Converter in SOT23-5General Descriptionn Automatic PFM/PWM mode switchingThe LM3671 step-down DC-DC converter is optimi ..
LM3671MF-1.6 ,2MHz , 600mA Step-Down DC-DC Converter in SOT23-5General Descriptionn Automatic PFM/PWM mode switchingThe LM3671 step-down DC-DC converter is optimi ..
LM3671MF-1.6 ,2MHz , 600mA Step-Down DC-DC Converter in SOT23-5LM3671 2MHz , 600mA Step-Down DC-DC Converter in SOT23-5February 2005LM36712MHz , 600mA Step-Down D ..
LM3671MF-1.875 ,2MHz , 600mA Step-Down DC-DC Converter in SOT23-5General Descriptionn Automatic PFM/PWM mode switchingThe LM3671 step-down DC-DC converter is optimi ..
LMV358IDRG4 ,Dual Low-Voltage Rail-to-Rail Output Operational Amplifier 8-SOIC -40 to 125Electrical Characteristics: V + = 5 V..... 6CC12.3 Electrostatic Discharge Caution. 237.7 Shutdown ..
LMV358IDT ,Low power rail-to-rail input/output op-ampFeaturesLMV321ILT• Operating range from V = 2.7 to 6 V(SOT23-5)CC• Rail-to-rail input and output• ..
LMV358IPW ,Dual Low-Voltage Rail-to-Rail Output Operational AmplifierMaximum Ratings . 411.1 Layout Guidelines.... 227.2 Handling Ratings. 411.2 Layout Example....... 2 ..
LMV358IPWG4 ,Dual Low-Voltage Rail-to-Rail Output Operational Amplifier 8-TSSOP -40 to 125Sample & Support &Product Tools &TechnicalCommunityBuyFolder Documents SoftwareLMV358,LMV321,LMV324 ..
LMV358IPWR ,Dual Low-Voltage Rail-to-Rail Output Operational AmplifierFeatures 3 DescriptionThe LMV321, LMV358, LMV324, and LMV324S1• 2.7-V and 5-V Performancedevices ar ..
LMV358IPWRG4 ,Dual Low-Voltage Rail-to-Rail Output Operational Amplifier 8-TSSOP -40 to 125Table of Contents8.1 Overview.. 161


LM3671MF-1.2-LM3671MF-1.25-LM3671MF-1.5-LM3671MF-1.6-LM3671MF-1.875-LM3671MFX-1.2-LM3671MFX-1.25-LM3671MFX-1.5-LM3671MFX-1.6-LM3671MFX-1.8-LM3671MFX-1.875
2MHz , 600mA Step-Down DC-DC Converter in SOT23-5
LM3671
2MHz, 600mA Step-Down DC-DC Converter in SOT23-5
General Description

The LM3671 step-down DC-DC converteris optimizedfor
powering ultra-low voltage circuits froma single Li-Ion cellor cell NiMH/NiCd batteries.It providesupto 600mA load
current, overan input voltage range from 2.8Vto 5.5V. There
are several different fixed voltage output options availableas
wellasan adjustable output voltage version.
The device offers superior features and performance for
mobile phones and similar portable applications with com-
plex power management systems. Automatic intelligent
switching between PWM low-noise and PFM low-current
mode offers improved system control. During full-power op-
eration,a fixed-frequency2 MHz (typ). PWM mode drives
loads from ∼70 mAto 600 mA max. Hysteretic PFM mode
extends the batterylife through reductionof the quiescent
currentto16µA (typ)at light loads and system standby.
Internal synchronous rectification provides high efficiency.In
shutdown mode (Enablepin pulled low) the device turnsoff
and reduces battery consumptionto 0.01µA (typ).
The LM3671is availableina SOT23-5 package withPb andPb (Lead free) versions.A high switching frequency-2
MHz (typ)- allows useof tiny surface-mount components.
Only three external surface-mount components,an inductor
and two ceramic capacitors, are required.
Features
16µA typical quiescent current 600 mA maximum load capability2 MHz PWM fixed switching frequency (typ) Automatic PFM/PWM mode switching Availablein fixed output voltages and adjustable version SOT23-5 package Internal synchronous rectificationfor high efficiency Internal soft start 0.01µA typical shutdown current Operates froma single Li-Ion cellor3 cell NiMH/NiCd
batteries Only three tiny surface-mount external components
required (one inductor, two ceramic capacitors) Current overload and Thermal shutdown protection
Applications
Mobile phones PDAs MP3 players W-LAN Portable instruments Digital still cameras Portable Hard disk drives
Typical Application Circuits

FIGURE1. Typical Application Circuit
February 2005
LM3671
2MHz
600mA
Step-Down
DC-DC
Converter
SOT23-5
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