Features
- Wide input voltage range: 4.5V to 100V
- Wide output voltage range: 0.8V to 96V
- Two MOSFET drivers with adaptive shoot-through protection
- Constant output voltage and output current feedback loop control
- Support current sharing
- External clock sync
- Programmable soft start
- Supports startup into pre-biased rails
- Programmable frequency: 100kHz to 2MHz
- PGOOD indicator
- Output current monitor
- Selectable mode between PWM/DE
- Low shut down current: 4μA
- Complete protection: OCP (pulse by pulse and optional hiccup or constant current mode), negative peak current limit, OVP, OTP, and UVP
- 5mm x 5mm TQFN package
- -40°C to +125°C operating temperature operating temperature
Description
The ISL81100 is a 100V synchronous buck controller that generates a stepped-down output for various applications in industrial and general-purpose segments. The ISL81100 uses fixed frequency peak current mode PWM control. The internal oscillator is adjustable from 100kHz to 2MHz and can be synchronized to an external clock signal for frequency synchronization and phase interleaving applications. It can support current sharing for parallel applications.
Parameters
| Attributes | Value |
|---|---|
| Outputs (#) | 1 |
| Topology [Rail 1] | Buck |
| Input Voltage (Min) [Rail 1] (V) | 4.5 |
| Input Voltage (Max) [Rail 1] (V) | 100 - 100 |
| Output Voltage (Min) [Rail 1] (V) | 0.8 |
| Output Voltage (Max) [Rail 1] (V) | 100 |
| Switching Frequency Range (Typical) (kHz) | 200 - 200 |
| Qualification Level | Standard |
| Temp. Range (°C) | -40 to +125°C |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TQFN | 5.0 x 5.0 x 0.75 | 25 | 0.5 |
Applications
- Telecommunication
- Server and data center
- Automotive electronics
- Industrial equipment
- Power system