
ISL8120CRZ
ObsoleteDUAL/N-PHASE BUCK PWM CONTROLLER WITH INTEGRATED DRIVERS

ISL8120CRZ
ObsoleteDUAL/N-PHASE BUCK PWM CONTROLLER WITH INTEGRATED DRIVERS
Description
General part information
ISL8120 Series
The ISL8120 integrates two voltage-mode PWM leading-edge modulation control, with input feed-forward synchronous buck PWM controllers, to control a dual independent voltage regulator or a 2-phase single output regulator. It also integrates current sharing control for the power module to operate in parallel, which offers high system flexibility. The ISL8120 integrates an internal linear regulator, which generates VCC from input rail for applications with only one single supply rail. The internal oscillator is adjustable from 150kHz to 1. 5MHz, and is able to synchronize to an external clock signal for frequency synchronization and phase paralleling applications. Its PLL circuit can output a phase-shift programmable clock signal for the system to be expanded to 3-, 4-, 6-, 12- phases with desired interleaving phase shift. The ISL8120’s Fault Hand Shake feature protects any channel from overloading/stressing due to system faults or phase failure. The undervoltage fault protection features are also designed to prevent a negative transient on the output voltage during falling down. This eliminates the Schottky diode that is used in some systems for protecting the load device from reversed output voltage damage.
Technical Specifications
Parameters and characteristics for this part
| Specification | ISL8120CRZ |
|---|---|
| Clock Sync | Yes |
| Control Features | Enable, Current Limit, Power Good |
| Duty Cycle (Max) | 90 % |
| Frequency - Switching (Max) | 1.5 MHz |
| Frequency - Switching (Min) | 150 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature (Max) | 70 °C |
| Operating Temperature (Min) | 0 °C |
| Output Configuration | Positive |
| Output Phases | 2 |
| Output Type | Transistor Driver |
| Package / Case | 32-VFQFN Exposed Pad |
| Package Length | 5 mm |
| Package Name | 32-QFN |
| Package Width | 5 mm |
| Synchronous Rectifier | Yes |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) Maximum | 5.6 V |
| Voltage - Supply (Vcc/Vdd) Minimum | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Sign in to see pricing
Create a free account to access distributor pricing data.
CAD
3D models and CAD resources for this part
Documents
Technical documentation and resources