Features
- Wide input voltage range: 3V to 40V
- Synchronous operation for high efficiency
- No compensation required
- Integrated high-side and low-side NMOS devices
- Selectable PFM or forced PWM mode at light loads
- Internal fixed frequency (500kHz) or adjustable switching frequency (300kHz to 2MHz)
- Continuous output current up to 1.2A
- Internal or external soft-start
- Minimal external components required
- Power-good and enable functions available
Description
The ISL854102 is a 1. 2A synchronous buck regulator with an input range of 3V to 40V. It provides an easy-to-use, high efficiency, low BOM count solution for a variety of applications. The ISL854102 integrates both high-side and low-side NMOS FETs and features a PFM mode for improved efficiency at light loads. This feature can be disabled if a forced PWM mode is needed. The ISL854102 switches at a default frequency of 500kHz; however, it can also be programmed using an external resistor from 300kHz to 2MHz. The ISL854102 has the ability to use internal or external compensation. By integrating both NMOS devices and providing internal configuration options, minimal external components are required, which reduces the BOM count and design complexity. With a wide VIN range and reduced BOM, the ISL854102 provides an easy to implement design solution for a variety of applications while giving superior performance. The ISL854102 provides a very robust design for high-voltage industrial applications and an efficient solution for battery powered applications. The ISL854102 is available in a small Pb-free 4mmx3mm DFN plastic package with a full-range industrial temperature of -40°C to +125°C.
Parameters
| Attributes | Value |
|---|---|
| Topology [Rail 1] | Buck |
| Outputs (#) | 1 |
| Input Voltage (Min) [Rail 1] (V) | 3 |
| Input Voltage (Max) [Rail 1] (V) | 40 - 40 |
| Output Voltage (Min) [Rail 1] (V) | 0.6 |
| Output Voltage (Max) [Rail 1] (V) | 34 |
| Output Current (Max) [Rail 1] (A) | 1.2 |
| Switching Frequency Range (Typical) (kHz) | 300 - 2000 |
| Control Type | Current Mode |
| Peak Efficiency (%) | 93 |
| IQ [Rail 1] (µA) | 80 |
| SYNCH Capability | Yes |
| Qualification Level | Standard |
| Temp. Range (°C) | -40 to +125°C |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| DFN | 4.0 x 3.0 x 0.90 | 12 | 0.5 |
Application Block Diagrams
|
Remote Predictive Maintenance System
The remote predictive maintenance system reduces downtime and costs with AI-driven insights and rich connectivity options.
|
|
Instrument Panel for Light Electric Vehicles
Compact instrumental panel system with sensor support, Bluetooth LE, GPU, and voice control.
|
|
Industrial Ethernet Gateway and Sensor System
Quick-start modules enable seamless Ethernet connectivity for sensors and gateways.
|
|
Wi-Fi-Connected Furnace Controller
Wi-Fi-connected furnace controller with precise sensing, safety compliance, and remote monitoring for modern HVAC systems.
|