IC Phoenix
 
Home ›  LL30 > LM2770SD-1215-LM2770SD-12157-LM2770SDX-1215-LM2770SDX-12157,High Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode
LM2770SD-1215-LM2770SD-12157-LM2770SDX-1215-LM2770SDX-12157 Fast Delivery,Good Price
Part Number:
If you need More Quantity or Better Price,Welcom Any inquiry.
We available via phone +865332716050 Email
Partno Mfg Dc Qty AvailableDescript
LM2770SD-1215 |LM2770SD1215TIN/a10837avaiHigh Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode
LM2770SD-1215 |LM2770SD1215NSN/a18299avaiHigh Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode
LM2770SD-12157 |LM2770SD12157NS,NSN/a7000avaiHigh Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode
LM2770SD-12157 |LM2770SD12157NATIONALN/a413avaiHigh Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode
LM2770SDX-1215 |LM2770SDX1215NSCN/a5avaiHigh Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode
LM2770SDX-1215 |LM2770SDX1215NSN/a37850avaiHigh Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode
LM2770SDX-12157 |LM2770SDX12157NSCN/a5avaiHigh Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode


LM2770SDX-1215 ,High Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep ModeLM2770 High Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep ModeDecember 2004LM2 ..
LM2770SDX-1215 ,High Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep ModeApplicationschargepumpisoff,andtheoutputisdrivenwithalow-noise,n DSP Power Supplieslow-power linear ..
LM2770SDX-12157 ,High Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep ModeFeaturesn High Efficiency Multi-Gain Architecture: Peak PowerThe LM2770 is a switched capacitor ste ..
LM2780TP ,Ultra-Low Ripple Switched Capacitor Voltage InverterPin DescriptionPin Name DescriptionA1 C2+ Secondary flying-capacitor connectionB1 V Input voltage. ..
LM2787BP ,Low Noise Regulated Switched Capacitor Voltage Inverter in micro SMDFeaturesn Inverts and regulates the input supply voltageTheLM2787CMOSNegativeRegulatedSwitchedCapac ..
LM2787BPX ,Low Noise Regulated Switched Capacitor Voltage Inverter in micro SMDPin DescriptionsPin No. Name FunctionA1 Cap+ Positive terminal for C .1B1 V Positive power supply i ..
LM61BIM3 ,2.7V, SOT-23 or TO-92 Temperature SensorElectrical CharacteristicsUnless otherwise noted, these specifications apply for +V = +3.0 V . Bold ..
LM61BIM3 ,2.7V, SOT-23 or TO-92 Temperature Sensorapplicationsn UL Recognized ComponentTypical Application01289702V = (+10 mV/˚C x T ˚C) + 600 mVOTem ..
LM61BIM3/NOPB ,?2?C Analog Output Temperature Sensor with TO-92 Option 3-SOT-23 -25 to 85Features 3 DescriptionThe LM61 device is a precision, integrated-circuit1• Calibrated Linear Scale ..
LM61BIM3X ,2.7V, SOT-23 or TO-92 Temperature SensorFeaturesn Calibrated linear scale factor of +10 mV/˚C j Nonlinearity ±0.8˚C (max)n Rated for full − ..
LM61BIM3X ,2.7V, SOT-23 or TO-92 Temperature Sensorapplicationsn UL Recognized ComponentTypical Application01289702V = (+10 mV/˚C x T ˚C) + 600 mVOTem ..
LM61BIM3X ,2.7V, SOT-23 or TO-92 Temperature SensorApplicationsn Cellular PhonesThe LM61 is a precision integrated-circuit temperature sen-sor that ca ..


LM2770SD-1215-LM2770SD-12157-LM2770SDX-1215-LM2770SDX-12157
High Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode
LM2770
High Efficiency Switched Capacitor Step-Down DC/DC
Regulator with Sleep Mode
General Description

The LM2770isa switched capacitor step-down regulator
thatis idealfor powering low-voltage applicationsin portable
systems. The LM2770 can supply load currentsupto 250mA
and operates overan input voltage rangeof 2.7Vto 5.5V.
This makesthe LM2770a great choicefor systems powered 1-cell Li-Ion batteries and chargers. The output voltageof
the LM2770 canbe dynamically switched between two out-
put levels witha logic input pin. Output voltage pairs cur-
rently available include 1.2V/1.5V and 1.2V/1.575V. Other
pairsof voltage options canbe developed upon request.
LM2770 efficiencyis superiorto both fixed-gain switched
capacitor buck regulators and low-dropout linear regulators
(LDO’s). Multiple fractional gains maximize power efficiency
overthe entire input voltage and output current ranges. The
LM2770 can alsobe switched intoa low-power sleep mode
when load currents are light(≤ 20mA).In sleep mode, the
charge pumpisoff, andthe outputis driven witha low-noise,
low-power linear regulator.
Soft-start, short-circuit protection, current-limit protection,
and thermal-shutdown protection are also included. The
LM2770is availablein National’s small 10-pin Leadless
Leadframe Package (LLP-10).
Features
High Efficiency Multi-Gain Architecture: Peak Power
Efficiency >85% Output Voltage Pairs: 1.2V/1.5V and 1.2V/1.575V Dynamic Output Voltage Selection ±3% Output Voltage Accuracy Output Currentsupto 250mA 2.7Vto 5.5V Input Range Low-Supply-Current Sleep Mode 55µA Quiescent Supply Currentin Full-Power Mode Soft-Start Short-Circuit Protectionin Full-Power Mode Current-Limit Protectionin Sleep Mode LLP-10 Package (3mmx 3mmx 0.8mm)
Applications
DSP Power Supplies Baseband Power Supplies Mobile Phones and Pagers Portable Electronic Equipment
Typical Application Circuit

LM2770 Efficiencyvs.
Low-Dropout Linear Regulator (LDO) Efficiency
December 2004
LM2770
High
Efficiency
Switched
Capacitor
Step-Down
DC/DC
Regulator
with
Sleep
Mode
ic,good price


TEL:86-533-2716050      FAX:86-533-2716790
   

©2020 IC PHOENIX CO.,LIMITED