ISL6617AFRZ-T PWM Doubler PMIC Switching Controllers PhaseSplitter
3.3VThe ISL6617A uses Intersil’s proprietary Phase Doubler scheme to
modulate two-phase power trains with single PWM input. It doubles
the number of phases that 3.3V multiphase controllers can support.
The ISL6617A is designed to minimize the number of analog signals
that interface between the controller and drivers in high phase
count scalable applications. The common COMP signal, which is
usually seen in conventional cascaded configurations, is not
required; this improves noise immunity and simplifies the layout.
Furthermore, the ISL6617A provides low part count and low cost
advantage over the conventional cascaded technique. By cascading
the ISL6617A with another ISL6617 or ISL6611A, it can quadruple the
number of phases that 3.3V multiphase controllers can support. The
ISL6617A also features tri-state inputs and outputs that recognize
a high-impedance state, working together with Intersil multiphase
PWM controllers and driver stages to prevent negative transients on
the controlled output voltage when operation is suspended. This
feature eliminates the need for the Schottky diode that may be
utilized in a power system to protect the load from excessive
negative output voltage damage. Applications• High current, low voltage DC/DC converters• High frequency and high efficiency VRM and VRD• High phase count and phase shedding applications• 3.3V PWM input integrated power stage or DrMOS Features• Proprietary phase doubler scheme• Enhanced light- to full-load efficiency• Double or quadruple phase count• Patented current balancing with DCR current sensing and
adjustable gain• Current monitoring output (IOUT) to simplify system interface and
layout• Triple-level enable input for mode selection• Dual PWM output drives for two synchronous rectified bridges with
single PWM input• Channel synchronization and two interleaving options• Support 3.3V PWM input• Support 5V PWM output• Compatible with DCR sensing or smart power stage sensing• Tri-state PWM input and outputs for output stage shutdown• Overvoltage protection• Dual Flat No-lead (DFN) package- Near chip-scale package footprint; improves PCB utilization,
thinner profile- Pb-free (RoHS compliant) Internal Block Diagramspecification of ISL6617AFRZ-T | Category |
Integrated Circuits (ICs)
Power Management (PMIC)
Power Management - Specialized
| Applications | | Current - Supply | | Voltage - Supply | | Operating Temperature | | Mounting Type | | Package / Case | | Supplier Device Package | |
ORIGINAL Our company ensures that each batch of products comes from the
original factory, and can provide original labels and professional
testing agency reports. PRICE We provide a variety of quotation channels, and sign the order
contract after negotiation. TRANSACTION After communication and agreement, we will guide you to arrange
payment. DELIVERY CYCLE Delivery on the same day, generally 5-12 working days, may be
slightly delayed during the epidemic, we will follow up the whole
process. TRANSPORT We will choose the appropriate transportation mode according to
your country. PACKAGING After communication with you, we will choose the appropriate
packaging method according to the weight of the goods to ensure the
safe delivery of the goods. |
