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LM3243 Datasheet

Part Number LM3243
Manufacturers Texas Instruments
Logo Texas Instruments
Description Step-Down DC-DC Converter
Datasheet LM3243 DatasheetLM3243 Datasheet (PDF)

  LM3243   LM3243
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3243 SNVS782C – OCTOBER 2010 – REVISED AUGUST 2015 LM3243 High-Current Step-Down Converter for 2G, 3G, and 4G RF Power Amplifiers 1 Features •1 Input Voltage Range: 2.7 V to 5.5 V • High-Efficiency PFM and PWM Modes With Internal Synchronous Rectification • Analog Bypass Function with Low Dropout Resistance (45 mΩ Typical) • Dynamically Adjustable Output Voltage: 0.4 V to 3.6 V (Typical) in PFM and PWM Modes • Maximum Load Current: 2.5 A in PWM Mode • PWM Switching Frequency: 2.7 MHz (Average) • Modulated Switching Frequency to Aid Rx Band Compliance • Operates From a Single Li-ion Cell (2.7 V to 5.5 V) • Current and Thermal Overload Protection • ACB Reduces Inductor Requirements and Size • Minimum Total Solution Size by Using Small Footprint and Case Size Inductor and Capacitors 2 Applications • Cellular Phones • Hand-Held Radios • RF PC Cards • Battery-Powered RF Devices 3 Description The LM.






Part Number LM324WPT
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description Low-power quad operational amplifier
Datasheet LM3243 DatasheetLM324WPT Datasheet (PDF)

  LM3243   LM3243
LM124, LM224x, LM324x Datasheet Low-power quad operational amplifiers QFN16 3x3 TSSOP14 SO14 Features • Wide gain bandwidth: 1.3 MHz • Input common mode voltage range includes ground • Large voltage gain: 100 dB • Very low supply current/amplifier: 375 µA • Low input bias current: 20 nA • Low input voltage: 3 mV max. • Low input offset current: 2 nA • Wide power supply range: – Single supply: 3 V to 30 V – Dual supplies: ±1.5 V to ±15 V Related products • See TSB572 and TSB611, 36 V newer technology devices, which have enhanced accuracy and ESD rating, reduced power consumption, and automotive grade qualification • See LM2902 and LM2902W for automotive grade applications Product status li.






Part Number LM324WDT
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description Low-power quad operational amplifier
Datasheet LM3243 DatasheetLM324WDT Datasheet (PDF)

  LM3243   LM3243
LM124, LM224x, LM324x Datasheet Low-power quad operational amplifiers QFN16 3x3 TSSOP14 SO14 Features • Wide gain bandwidth: 1.3 MHz • Input common mode voltage range includes ground • Large voltage gain: 100 dB • Very low supply current/amplifier: 375 µA • Low input bias current: 20 nA • Low input voltage: 3 mV max. • Low input offset current: 2 nA • Wide power supply range: – Single supply: 3 V to 30 V – Dual supplies: ±1.5 V to ±15 V Related products • See TSB572 and TSB611, 36 V newer technology devices, which have enhanced accuracy and ESD rating, reduced power consumption, and automotive grade qualification • See LM2902 and LM2902W for automotive grade applications Product status li.






Part Number LM324W
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description Low Power Quad Operational Amplifier
Datasheet LM3243 DatasheetLM324W Datasheet (PDF)

  LM3243   LM3243
LM124, LM224x, LM324x Datasheet Low-power quad operational amplifiers QFN16 3x3 TSSOP14 SO14 Features • Wide gain bandwidth: 1.3 MHz • Input common mode voltage range includes ground • Large voltage gain: 100 dB • Very low supply current/amplifier: 375 µA • Low input bias current: 20 nA • Low input voltage: 3 mV max. • Low input offset current: 2 nA • Wide power supply range: – Single supply: 3 V to 30 V – Dual supplies: ±1.5 V to ±15 V Related products • See TSB572 and TSB611, 36 V newer technology devices, which have enhanced accuracy and ESD rating, reduced power consumption, and automotive grade qualification • See LM2902 and LM2902W for automotive grade applications Product status li.






Part Number LM324S
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description Single Supply Quad Operational Amplifiers
Datasheet LM3243 DatasheetLM324S Datasheet (PDF)

  LM3243   LM3243
LM324S, LM2902S Single Supply Quad Operational Amplifiers The LM324S and LM2902S are low−cost, quad operational amplifiers with true differential inputs. They have several distinct advantages over standard operational amplifier types in single supply applications. The common mode input range includes the negative supply, thereby eliminating the necessity for external biasing components in many applications. The output voltage range also includes the negative power supply voltage. Features • Short Circuited Protected Outputs • True Differential Input Stage • Single Supply Operation: 3.0 V to 32 V • Four Amplifiers Per Package • Internally Compensated • Common Mode Range Extends to Negative S.






Part Number LM324QT
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description Low-power quad operational amplifier
Datasheet LM3243 DatasheetLM324QT Datasheet (PDF)

  LM3243   LM3243
LM124, LM224x, LM324x Datasheet Low-power quad operational amplifiers QFN16 3x3 TSSOP14 SO14 Features • Wide gain bandwidth: 1.3 MHz • Input common mode voltage range includes ground • Large voltage gain: 100 dB • Very low supply current/amplifier: 375 µA • Low input bias current: 20 nA • Low input voltage: 3 mV max. • Low input offset current: 2 nA • Wide power supply range: – Single supply: 3 V to 30 V – Dual supplies: ±1.5 V to ±15 V Related products • See TSB572 and TSB611, 36 V newer technology devices, which have enhanced accuracy and ESD rating, reduced power consumption, and automotive grade qualification • See LM2902 and LM2902W for automotive grade applications Product status li.






Step-Down DC-DC Converter

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3243 SNVS782C – OCTOBER 2010 – REVISED AUGUST 2015 LM3243 High-Current Step-Down Converter for 2G, 3G, and 4G RF Power Amplifiers 1 Features •1 Input Voltage Range: 2.7 V to 5.5 V • High-Efficiency PFM and PWM Modes With Internal Synchronous Rectification • Analog Bypass Function with Low Dropout Resistance (45 mΩ Typical) • Dynamically Adjustable Output Voltage: 0.4 V to 3.6 V (Typical) in PFM and PWM Modes • Maximum Load Current: 2.5 A in PWM Mode • PWM Switching Frequency: 2.7 MHz (Average) • Modulated Switching Frequency to Aid Rx Band Compliance • Operates From a Single Li-ion Cell (2.7 V to 5.5 V) • Current and Thermal Overload Protection • ACB Reduces Inductor Requirements and Size • Minimum Total Solution Size by Using Small Footprint and Case Size Inductor and Capacitors 2 Applications • Cellular Phones • Hand-Held Radios • RF PC Cards • Battery-Powered RF Devices 3 Description The LM3243 is a DC-DC converter optimized for powering multi-mode 2G, 3G, and 4G RF power amplifiers (PAs) from a single Lithium-Ion cell. The LM3243 steps down an input voltage from 2.7 V to 5.5 V to a dynamically adjustable output voltage of 0.4 V to 3.6 V. The output voltage is set through a VCON analog input that adjusts the output voltage to ensure efficient operation at all power levels of the RF PA. The LM3243 operates in constant frequency PWM mode producing a small and predictable amount of o.



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