Features
- 2.2V to 6V input supply
- 130mV dropout voltage typical (at 1A)
- Fast load transient response
- ±0.2% initial VOUT accuracy
- Adjustable in-rush current limiting
- 58dB typical PSRR
- 63µVRMS output noise at VOUT = 1.8V
- Power-good feature
- 500mV feedback voltage
- Supply-independent 1V enable input threshold
- Short-circuit current protection
- 1A peak reverse current
- Over-temperature shutdown
- Any cap stable with minimum 10µF ceramic
- ±1.8% guaranteed VOUT accuracy for junction temperature range from -40°C to +125°C
- Available in a 10 Lead DFN package
- Pb-free (RoHS compliant)
- AEC-Q100 qualified
Description
The ISL78310 is a low dropout voltage, high-current, single output LDO specified for 1A output current. This part operates from input voltages down to 2. 2V and up to 6V. The part offers fixed and external resistor adjustable output voltages from 0. 8V to 5V. Custom voltage options are available upon request. For applications that desire to set the in-rush current to less than the current limit of the part, or for applications that require turn-on time control, an external capacitor can be placed on the soft-start pin for maximum control. A supply-independent ENABLE signal allows the part to be placed into a low quiescent current shutdown mode. Sub-micron CMOS process is used for this product family to deliver best-in-class analog performance and overall value. This CMOS LDO consumes significant lower quiescent (ground pin) current as a function of load over bipolar LDOs, which translates into higher efficiency and packages with smaller footprints. Quiescent current is optimized to achieve a very fast load transient response. The ISL78310 is AEC-Q100 rated. The ISL78310 is rated for the automotive temperature range (-40°C to +125°C).
Parameters
| Attributes | Value |
|---|---|
| Input Voltage (Min) (V) | 2.2 |
| Input Voltage (Max) (V) | 6 |
| Output Voltage (Min) (V) | 0.8 |
| Output Voltage (Max) (V) | 5 |
| Output Current 1 (Max) (A) | 1 |
| Drop Out Voltage (Typical) | 130 @ 1A |
| Fixed Output Voltage Option | Yes |
| PSRR (db) | 72 |
| Noise (10Hz to 100kHz) (μVrms) | 63 |
| Qualification Level | Automotive |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| DFN | 3.0 x 3.0 x 0.90 | 10 | 0.5 |
Application Block Diagrams
 | TFT Instrument Cluster with Bluetooth Audio and Telematics TFT instrument cluster with integrated telematics, graphics, and AI for cost‑efficient connected mobility. |
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 | High-Performance EV Cooling System Advanced EV cooling system offers efficient thermal management with versatile high-performance MCU. |
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 | Communication Gateway & Integrated DVR/DMS System Integrated automotive gateway merging CoGW with DVR/DMS video processing. |
 | Vehicle Computer for Future E/E Architecture Next-generation vehicle computer system for advanced E/E architecture with high computing power. |
 | Automotive Communication Gateway Platform Integrated automotive gateway platform with R-Car S4 SoC, multi-network support, and optimized power management. |
Additional Applications
- Core & I/O Power
- Camera Modules
- Post Regulation of Switched Supplies
- Radio Systems
- Infotainment Systems
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Support Communities
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Part Number suffix -T vs -TS2568
Hi there, i would like to understand what is the differences between MPN: ISL78310ARAJZ-T vs MPN: ISL78310ARAJZ-TS2568 What is the meaning of suffix "S2568" ? Thanks for helping on this.
Jan 23, 2025
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