LM3243 Datasheet
Part Number |
LM3243 |
Manufacturers |
Texas Instruments |
Logo |
|
Description |
Step-Down DC-DC Converter |
Datasheet |
LM3243 Datasheet (PDF) |
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 |
|
Description |
Low-power quad operational amplifier |
Datasheet |
LM324WPT Datasheet (PDF) |
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 |
|
Description |
Low-power quad operational amplifier |
Datasheet |
LM324WDT Datasheet (PDF) |
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 |
|
Description |
Low Power Quad Operational Amplifier |
Datasheet |
LM324W Datasheet (PDF) |
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 |
|
Description |
Single Supply Quad Operational Amplifiers |
Datasheet |
LM324S Datasheet (PDF) |
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 |
|
Description |
Low-power quad operational amplifier |
Datasheet |
LM324QT Datasheet (PDF) |
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.
2020-03-14 : G8P-1C2T-F NSVR0240V2 LM3203 LM320-N MTB1K0N20KL3 FNA41560T2 MTB1D8N04E3 MTB1D8NR03E3 MTB1K0A20KQ8 NSR0240V2