LM2653MTCX-ADJ ,1.5A High Efficiency Synchronous Switching RegulatorElectrical CharacteristicsSpecifications with standard typeface are for T = 25˚C, and those in bold ..
LM2653MTCX-ADJ/NOPB ,1.5A High Efficiency Synchronous Switching Regulator 16-TSSOP -40 to 125Electrical Characteristics (continued)Specifications with standard typeface are for T = 25°C, and t ..
LM2655MTC-3.3 ,2.5A High Efficiency Synchronous Switching RegulatorLM2655 2.5A High Efficiency Synchronous Switching RegulatorMarch 2001LM26552.5A High Efficiency Syn ..
LM2655MTC-3.3 ,2.5A High Efficiency Synchronous Switching RegulatorFeaturesn Ultra-high efficiency up to 96%The LM2655 is a current-mode controlled PWM step-downswitc ..
LM2655MTC-ADJ ,2.5A High Efficiency Synchronous Switching RegulatorFeaturesn Ultra-high efficiency up to 96%The LM2655 is a current-mode controlled PWM step-downswitc ..
LM2655MTC-ADJ ,2.5A High Efficiency Synchronous Switching Regulatorapplications. n Thermal Shutdownn 16-pin TSSOP packageIntegrated in the LM2655 are all the power, c ..
LM4950TA ,7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifierapplicationsinflatpanelmonitorsandj P (SE)OUTTV’s.Itiscapableofdelivering3.1wattsperchanneltoa4Ωsin ..
LM4950TSX ,7.5W Mono-BTL or 3.1W Stereo Audio Power AmplifierApplicationsn Flat Panel Monitorsn Flat panel TV’sn Computer Sound CardsTypical Application20047078 ..
LM4951ASD/NOPB ,Wide Voltage Range 1.8 Watt Audio Power Amplifier With Short Circuit Protection 10-WSON -40 to 85features an internal thermal shutdown• Portable Devicesprotection mechanism and short circuit prote ..
LM4951SD ,Wide Voltage Range 1.8 Watt Audio Power AmplifierApplicationsn Portable Handheld Devices up to 9Vn Cell Phonen PDATypical Application200942F4*R is n ..
LM4951SD/NOPB ,Wide Voltage Range 1.8 Watt Audio Power Amplifier 10-WSON Electrical Characteristics V = 7.5VDDThe following specifications apply for V = 7.5V, A = 6dB, R = ..
LM4952TS ,3.1W Stereo-SE Audio Power Amplifier with DC Volume ControlFeaturesadjustment.n Pop & click circuitry eliminates noise during turn-on andBoomeraudiopowerampli ..
LM2653MTC-ADJ-LM2653MTCX-ADJ
1.5A High Efficiency Synchronous Switching Regulator
LM2653
1.5A High Efficiency Synchronous Switching Regulator
General DescriptionThe LM2653 switching regulator provides high efficient
power conversion overa 100:1 load range (1.5Ato15 mA).
This feature makes the LM2653 an ideal fit in
battery-powered applications.
Synchronous rectificationis usedto achieveupto 97%
efficiency.At light loads, the LM2653 entersa low power
hystereticor “sleep” modeto keep the efficiency high.In
many applications,the efficiency still exceeds 80%at15 mA
load.A shutdownpinis availableto disablethe LM2653 and
reducethe supply currentto 7μA.
All the power, control, and drive functions are integrated
within the ICs. The ICs contain patented current sensing
circuityfor current mode control. This feature eliminates the
external current sensing resistor required by other
current-mode DC-DC converters.
The ICs havea 300 kHz fixed frequency internal oscillator.
The high oscillator frequency allows the useof extremely
small, low profile components.
Protection features include thermal shutdown, input under-
voltage lockout, adjustable soft-start, cycleby cycle current
limit, output overvoltage and undervoltage protections.
Features Efficiencyupto 97% 4Vto 14V input voltage range 1.5Vto 5.0V adjustable output voltage 0.1Ω SwitchOn Resistance 300 kHz fixed frequency internal oscillator7μA shutdown current Patented current sensingfor current mode control Input undervoltage lockout Output overvoltage shutdown protection Output undervoltage shutdown protection Adjustable soft-start Adjustable PGOOD delay Current limit and thermal shutdown
Applications Webpad Personal digital assistants (PDAs) Computer peripherals Battery-powered devices Notebook computer video supply Handheld scanners GXMI/O and core voltage High efficiency5V conversion
Typical Application
Efficiencyvs Load Current
(VIN= 5V, VOUT= 3.3V)March 2001
LM2653
1.5A
High
Efficiency
Synchronous
Switching
Regulator
