LM3224MM-ADJ NOPB ,615kHz/1.25MHz Step-up PWM DC/DC Converter 8-VSSOP -40 to 125block diagram and Figure 21 of the Operation section. At the start ofeach cycle, the oscillator set ..
LM3224MM-ADJ/NOPB ,615kHz/1.25MHz Step-up PWM DC/DC Converter 8-VSSOP -40 to 125FEATURES DESCRIPTIONThe LM3224 is a step-up DC/DC converter with a2• Operating Voltage Range of 2.7 ..
LM3224MMX-ADJ ,615kHz/1.25MHz Step-up PWM DC/DC ConverterApplicationsTypical Application Circuit20097631 2004 National Semiconductor Corporation DS200976 Co ..
LM3224MMX-ADJ ,615kHz/1.25MHz Step-up PWM DC/DC ConverterFeaturesn Operating voltage range of 2.7V to 7VThe LM3224 is a step-up DC/DC converter with a 0.15Ω ..
LM323AT ,3A, 5V, Positive Voltage Regulator2LM323, LM323ARepresentative Schematic Diagram2Input1.0k 1.0k210Q21Q2Q1 Q22Q206.7V16k100Q25Q8200Q9Q ..
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LMC6082IM ,Precision CMOS Dual Operational AmplifierApplicationsThis device is built with National’s advanced Double-Polyn Instrumentation amplifierSil ..
LMC6082IMX ,Precision CMOS Dual Operational AmplifierApplicationsThis device is built with National’s advanced Double-Polyn Instrumentation amplifierSil ..
LMC6082IMX/NOPB ,Precision CMOS Dual Operational Amplifier 8-SOIC -40 to 85Electrical Characteristics+−Unless otherwise specified, all limits specified for T = 25°C. Boldface ..
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LM3224MM-ADJ NOPB-LM3224MM-ADJ/NOPB
615kHz/1.25MHz Step-up PWM DC/DC Converter 8-VSSOP -40 to 125
LM3224 RFB1
CIN
COUTRFB22
GND
VC
VOUT
VINBattery or
Power Source8
CSS
Optional
FSLCTVIN6 7
SHDN3
LM3224
www.ti.com SNVS277C –DECEMBER 2004–REVISED MARCH 2013
LM3224 615kHz/1.25MHz Step-up PWM DC/DC Converter
Checkfor Samples: LM3224
1FEATURES DESCRIPTIONThe LM3224isa step-up DC/DC converter witha
Operating Voltage Rangeof 2.7Vto 7V 0.15Ω (typ.), 2.45A (typ.) internal switch and pin
• 615kHz/1.25MHz Pin Selectable Frequency selectable operating frequency. With the ability to
Operation convert 3.3Vto multiple outputsof 8V, -8V, and 23V,
Over Temperature Protection the LM3224is an ideal part for biasing TFT displays.
With the high current switchitis also ideal for driving
• Optional Soft-Start Function high current white LEDs for flash applications. The
• 8-Lead VSSOP Package LM3224 can be operatedat switching frequenciesof
615kHz and 1.25MHz allowing for easy filtering and
APPLICATIONS low noise. An external compensation pin gives the
user flexibility in setting frequency compensation,
• TFT Bias Supplies which makes possible the use of small, low ESR
• Handheld Devices ceramic capacitorsat the output. An external soft-
Portable Applications start pin allows the userto control the amountof
inrush current during start up. The LM3224 is
• GSM/CDMA Phones availableina low profile 8-lead VSSOP package.
• Digital Cameras White LED Flash/Torch Applications
Typical Application Circuit
