LM2750LD-5.0 ,Low Noise Regulator Switched Capacitor Boost RegulatorLM2750 Low Noise Switched Capacitor Boost RegulatorJuly 2004LM2750Low Noise Switched Capacitor Boos ..
LM2750LD-5.0/NOPB ,Low-Noise Switched-Capacitor Boost Regulator 10-WSON -40 to 85Maximum Ratings may cause permanent damage to the device. These are stress ratingsonly, which do no ..
LM2750LD-ADJ ,Low Noise Regulator Switched Capacitor Boost RegulatorFeaturesn Inductorless solution: Application requires only 3 smallThe LM2750 is a regulated switche ..
LM2750LDX-5.0 ,Low Noise Regulator Switched Capacitor Boost RegulatorFeaturesn Inductorless solution: Application requires only 3 smallThe LM2750 is a regulated switche ..
LM2750LDX-ADJ ,Low Noise Regulator Switched Capacitor Boost RegulatorApplicationsA tightly controlled soft-start feature limits inrush currentsn White and Colored LED-b ..
LM2750SD-5.0 , LM2750 Low Noise Switched Capacitor Boost Regulator
LM6165J/883 ,High Speed Operational AmplifierFeaturesn High slew rate: 300 V/μsConnection Diagrams10-Lead FlatpakTop ViewDS009152-14Order Number ..
LM6171 ,High Speed Low Power Low Distortion Voltage Feedback Amplifierapplications.YMultimedia Broadcast SystemsTMThe LM6171 is built on National’s advanced VIP III (Ver ..
LM6171AIM ,High Speed Low Power Low Distortion Voltage Feedback AmplifierApplications™The LM6171 is built on National’s advanced VIP III (Verti-cally Integrated PNP) comple ..
LM6171AIM ,High Speed Low Power Low Distortion Voltage Feedback AmplifierFEATURES DESCRIPTIONThe LM6171 is a high speed unity-gain stable voltage23• (Typical Unless Otherwi ..
LM6171AIMX ,High Speed Low Power Low Distortion Voltage Feedback AmplifierApplications™The LM6171 is built on National’s advanced VIP III (Verti-cally Integrated PNP) comple ..
LM6171AIN ,High Speed Low Power Low Distortion Voltage Feedback AmplifierApplications™The LM6171 is built on National’s advanced VIP III (Verti-cally Integrated PNP) comple ..
LM2750LD-5.0-LM2750LD-ADJ-LM2750LDX-5.0-LM2750LDX-ADJ
Low Noise Regulator Switched Capacitor Boost Regulator
LM2750
Low Noise Switched Capacitor Boost Regulator
General DescriptionThe LM2750isa regulated switched-capacitor doubler that
producesa low-noise output voltage. The 5.0V output volt-
age option (LM2750-5.0) can supplyupto 120mAof output
current overa 2.9Vto 5.6V input range,as wellasupto
40mAof output current when the input voltageisas lowas
2.7V.An adjustable output voltage option with similar output
current capabilitiesis also available (LM2750-ADJ). The
LM2750 has been placedin National’s 10-pin LLP,a pack-
age with excellent thermal properties that keeps the part
from overheating under almostall rated operating conditions perfectfitfor space-constrained, battery-powered applica-
tions,the LM2750 requires only3 external components: one
input capacitor, one output capacitor, and one flying capaci-
tor. Small, inexpensive ceramic capacitors are recom-
mendedfor use. These capacitors,in conjunction with the
1.7MHz fixed switching frequencyofthe LM2750, yield low
output voltage ripple, beneficialfor systems requiringa low-
noise supply. Pre-regulation minimizes input current ripple,
reducing input noiseto negligible levels. tightly controlled soft-start feature limits inrush currents
during part activation. Shutdown completely disconnectsthe
load from the input. Output current limiting and thermal
shutdown circuitry protect both the LM2750 and connected
devicesin the eventof output shortsor excessive current
loads.
Features Inductorless solution: Application requires only3 small
ceramic capacitors Fixed 5.0V output and adjustable output voltage options
available 85% Peak Efficiency
70% Average Efficiency over Li-Ion Input Range
(2.9V-to-4.2V) Output Currentupto 120mA with 2.9V≤ VIN≤ 5.6V
Output Currentupto 40mA with 2.7V≤ VIN≤ 2.9V Wide Input Voltage Range: 2.7Vto 5.6V Fixed 1.7MHz switching frequencyfora low-noise,
low-ripple output signal Pre-regulation minimizes input current ripple, keeping
the battery line (VIN) virtually noise-free Tiny LLP package with outstanding power dissipation:
Usuallyno derating required. Shutdown Supply Current less than 2µA
Applications White and Colored LED-based Display Lighting Cellular Phone SIM cards Audio Amplifier Power Supplies General Purpose Li-Ion-to-5V Conversion
Typical Application CircuitJuly 2004
LM2750
Low
Noise
Switched
Capacitor
Boost
Regulator
