Overview
The LM2588S-ADJ, produced by Texas Instruments, is a versatile and highly integrated switching voltage regulator. This device is part of the LM2588 series, designed for various switching regulator applications including flyback, step-up (boost), and forward converters. The LM2588S-ADJ is notable for its wide input voltage range of 4 V to 40 V and its ability to handle high output currents up to 5 A. It features a shutdown capability, adjustable switching frequency, and internal soft-start to reduce in-rush current during startup. This regulator is available in several output voltage versions, including adjustable, making it a flexible choice for a variety of power supply designs.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range | - | 4 | 40 | V |
| Output Switch Voltage | - | 0 | 60 | V |
| Output Switch Current | - | - | 5.0 | A |
| Junction Temperature Range | - | -40 | 125 | °C |
| Switching Frequency Range | - | 100 kHz | 200 kHz | - |
| Shutdown Current | 60 μA | - | - | μA |
| Output Voltage Tolerance | - | - | ±4% | - |
Key Features
- Requires few external components for operation.
- NPN output switches capable of handling up to 5 A and standing off 65 V.
- Wide input voltage range: 4 V to 40 V.
- Adjustable switching frequency: 100 kHz to 200 kHz.
- External shutdown capability.
- Internal soft-start function to reduce in-rush current during startup.
- Current-mode operation for improved transient response, line regulation, and current limit.
- Output transistor protected by current limit, undervoltage lockout, and thermal shutdown.
- Frequency synchronization capability.
Applications
- Flyback regulators.
- Forward converters.
- Multiple-output regulators.
- Simple boost regulators.
Q & A
- What is the input voltage range of the LM2588S-ADJ?
The input voltage range of the LM2588S-ADJ is from 4 V to 40 V.
- What is the maximum output switch current of the LM2588S-ADJ?
The maximum output switch current is 5 A.
- Does the LM2588S-ADJ have an external shutdown capability?
- What is the typical shutdown current of the LM2588S-ADJ?
The typical shutdown current is less than 60 μA.
- What is the output voltage tolerance of the LM2588S-ADJ?
The output voltage tolerance is ±4% over specified input voltages and output load conditions.
- Can the LM2588S-ADJ be used in flyback, boost, and forward converter applications?
- Does the LM2588S-ADJ have internal protection features?
- What is the switching frequency range of the LM2588S-ADJ?
The switching frequency range is adjustable from 100 kHz to 200 kHz.
- Does the LM2588S-ADJ support frequency synchronization?
- What is the junction temperature range of the LM2588S-ADJ?
The junction temperature range is from -40°C to +125°C.
