ISL6420IA-TK

Frequency - Switching:	100kHz ~ 1.4MHz
Base Part Number:	ISL6420
Supplier Device Package:	20-QSOP
Package / Case:	20-SSOP (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Enable, Frequency Control, Phase Control, Power Good, Soft Start
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	96%
Series:	--
Voltage - Supply (Vcc/Vdd):	5.6 V ~ 16 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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ISL6420IA-TK Application Field and Working Principle

The ISL6420IA-TK is a multi-phase, non-synchronous, two-level Buck voltage regulator, first introduced by Intersil in 2013. It is part of the company’s “Core Power System” product line, and is designed primarily for mobile device applications. The ISL6420IA-TK is capable of providing high efficiency, power-conversion across a wide range of input voltage ranges, from 0.8V to 3.3V, and with output voltages ranging from 0.7V to 2.8V. The device is also capable of providing up to 4A of output current, with high output accuracy and ultra-low ripple, which makes it ideal for powering a variety of high-performance, low-power, low-voltage applications.The ISL6420IA-TK can be categorized as a PMIC- Voltage Regulators- DC DC Switching Controllers. It is a single-chip, non-synchronous, two-level, buck voltage regulator that uses two distinct switching frequencies and two distinct voltage levels for voltage regulation. The two-level "buck" architecture utilizes both high and low voltage switching transitions to increase regulated output voltage accuracy and efficiency. The device features a programmable master oscillator, multiple soft-start options, and line transient voltage filtering. Additionally, the device includes over-voltage, over-current, and short-circuit protection to ensure proper device operation. The ISL6420IA-TK is a highly efficient device with a core power dissipation of less than 0.5W during normal operation. This is achieved through the use of advanced power management techniques, such as discontinuous conduction mode (DCM) and pulse frequency modulation (PFM), which are both implemented in the device. DCM optimizes power efficiency by allowing the device’s switching frequency to be reduced when the load is light, thus reducing power losses. PFM is an additional power-saving technique that enables the device to reduce switching frequency, at light loads, to maximize efficiency.The ISL6420IA-TK offers an adjustable output range of 0.7V to 2.8V, and supports both single-phase and multi-phase operation. Additionally, the device allows for adjustable output current limit and programmable over-voltage protection. The device features a wide input range of 0.8V to 3.3V, which enables it to be used for a variety of low-voltage applications, such as processors and ASICs. The device also includes several options for output noise filtering, such as a programmable low-pass filter, an integrated spread-spectrum mode, and a programmable power-saving mode.In conclusion, the ISL6420IA-TK is a multi-phase, non-synchronous, two-level buck voltage regulator first introduced by Intersil in 2013. The device is capable of providing high efficiency, power-conversion across a wide range of input voltage ranges and with output voltages ranging from 0.7V to 2.8V. It is a highly efficient device with a core power dissipation of less than 0.5W during normal operation, and supports both single-phase and multi-phase operation. The device also features several options for output noise filtering and programmable power-saving. The ISL6420IA-TK can be categorized as a PMIC- Voltage Regulators- DC DC Switching Controllers, and is perfect for powering a variety of high-performance, low-power, low-voltage applications.

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