ST L4972AD013TR
| Manufacturer | |
| MPN | L4972AD013TR |
| LCSC Part # | C2071589 |
| Packaging | SO-20-300mil |
| Customer # | |
| Key Attributes | 200kHz Step-down type Adjustable 2A 5.1V~40V SO-20-300mil Voltage Regulators - DC DC Switching Regulators |
| Datasheet | ST L4972AD013TR |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ST | |
| Packaging | SO-20-300mil | |
| Operating Temperature | -40℃~+150℃@(TJ) | |
| Frequency - Switching | 200kHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Cycle-by-cycle current limiting;Adjustable soft-start;Frequency synchronization;Operating status indication;Overcurrent Protection | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 15V~50V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 2A | |
| Output Voltage | 5.1V~40V | |
| Quiescent Current | 13mA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ST | |
| Packaging | SO-20-300mil | |
| Operating Temperature | -40℃~+150℃@(TJ) | |
| Frequency - Switching | 200kHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Cycle-by-cycle current limiting;Adjustable soft-start;Frequency synchronization;Operating status indication;Overcurrent Protection |
| Type | Description | |
|---|---|---|
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 15V~50V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 2A | |
| Output Voltage | 5.1V~40V | |
| Quiescent Current | 13mA |
Introduction
The L4972A is a stepdown monolithic power switching regulator delivering 2A at a voltage variable from 5.1 to 40V. Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Features of the L4972 include reset and power fail for microprocessors, feed forward line regulation, soft start, limiting current and thermal protection. The device is mounted in a Powerdip 16+2+2 and SO20 large plastic packages and requires few external components. Efficient operation at switching frequencies up to 200KHz allows reduction in the size and cost of external filter component. The L4972A is a 2A monolithic stepdown switching regulator working in continuous mode realized in the new BCD Technology. This technology allows the integration of isolated vertical DMOS power transistors plus mixed CMOS/Bipolar transistors. The device can deliver 2A at an output voltage adjustable from 5.1V to 40V and contains diagnostic and control functions that make it particularly suitable for microprocessor based systems.
Features
- 2A OUTPUT CURRENT
- 5.1V TO 40V OUTPUT VOLTAGE RANGE
- 0 TO 90% DUTY CYCLE RANGE
- INTERNAL FEED-FORWARD LINE REG.
- INTERNAL CURRENT LIMITING
- PRECISE 5.1V±2% ON CHIP REFERENCE
- RESET AND POWER FAIL FUNCTIONS
- INPUT/OUTPUT SYNC PIN
- UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON
- PWM LATCH FOR SINGLE PULSE PER PERIOD
- VERY HIGH EFFICIENCY
- SWITCHING FREQUENCY UP TO 200KHz
- THERMAL SHUTDOWN
- CONTINUOUS MODE OPERATION
Applications
- Microprocessor-based systems
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ST | |
| Packaging | SO-20-300mil | |
| Operating Temperature | -40℃~+150℃@(TJ) | |
| Frequency - Switching | 200kHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Cycle-by-cycle current limiting;Adjustable soft-start;Frequency synchronization;Operating status indication;Overcurrent Protection | |
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 15V~50V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 2A | |
| Output Voltage | 5.1V~40V | |
| Quiescent Current | 13mA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | ST | |
| Packaging | SO-20-300mil | |
| Operating Temperature | -40℃~+150℃@(TJ) | |
| Frequency - Switching | 200kHz | |
| Function | Step-down type | |
| Number of Outputs | 1 | |
| Features | Cycle-by-cycle current limiting;Adjustable soft-start;Frequency synchronization;Operating status indication;Overcurrent Protection |
| Type | Description | |
|---|---|---|
| Output Type | Adjustable | |
| Topology | Buck | |
| Operating Voltage | 15V~50V | |
| Switch tube (built-in/external) | Built-in | |
| Output Current | 2A | |
| Output Voltage | 5.1V~40V | |
| Quiescent Current | 13mA |
Introduction
The L4972A is a stepdown monolithic power switching regulator delivering 2A at a voltage variable from 5.1 to 40V. Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Features of the L4972 include reset and power fail for microprocessors, feed forward line regulation, soft start, limiting current and thermal protection. The device is mounted in a Powerdip 16+2+2 and SO20 large plastic packages and requires few external components. Efficient operation at switching frequencies up to 200KHz allows reduction in the size and cost of external filter component. The L4972A is a 2A monolithic stepdown switching regulator working in continuous mode realized in the new BCD Technology. This technology allows the integration of isolated vertical DMOS power transistors plus mixed CMOS/Bipolar transistors. The device can deliver 2A at an output voltage adjustable from 5.1V to 40V and contains diagnostic and control functions that make it particularly suitable for microprocessor based systems.
Features
- 2A OUTPUT CURRENT
- 5.1V TO 40V OUTPUT VOLTAGE RANGE
- 0 TO 90% DUTY CYCLE RANGE
- INTERNAL FEED-FORWARD LINE REG.
- INTERNAL CURRENT LIMITING
- PRECISE 5.1V±2% ON CHIP REFERENCE
- RESET AND POWER FAIL FUNCTIONS
- INPUT/OUTPUT SYNC PIN
- UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON
- PWM LATCH FOR SINGLE PULSE PER PERIOD
- VERY HIGH EFFICIENCY
- SWITCHING FREQUENCY UP TO 200KHz
- THERMAL SHUTDOWN
- CONTINUOUS MODE OPERATION
Applications
- Microprocessor-based systems
C2071589 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |