ACT41000-104 datasheet(1/72 Pages) QORVO

부품명	ACT41000-104

상세설명	Programmable Voltage, Programmable Current, Low Noise RFPoL Step-Down Voltage Regulator

PDF	72 Pages

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제조업체	QORVO [Qorvo, Inc]

홈페이지	https://www.qorvo.com/

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ACT41000

Programmable Voltage, Programmable Current, Low Noise

RFPoL Step-Down Voltage Regulator

Product Overview

The Qorvo

® ACT41000 is a programmable output, low

noise, RFPoL (Radio Frequency application Point of Load)

buck converter with auxiliary bias supply regulators. This

synchronous step-down voltage regulator supports a wide

input voltage of 4.5 V to 40 V and integrates both the high

side and low side MOSFETS of

50mΩ R

DSON for high

efficiency power conversions.

To power up a drain of GaN/GaAs Power Amplifiers (PAs),

the ACT41000 supports a programmable output both

in voltage and current (limit) setpoints and the device

operates in constant-current (CC) and constant-voltage (CV)

seamlessly. Qorvo factory-programs the default settings and

an optional MCU can re-program them on-the-fly via I

2C.

The precise 256-step current limit enables an MCU to detect

precise IDQ by eliminating a current sensor IC.

The Qorvo

® proprietary current-mode control uses its on-

chip oscillator clock with spread-spectrum or an external

clock to synchronize. This fixed frequency operation with

the stable control loop greatly reduces output power noise

and EMI to noise sensitive RF components.

The ACT41000 provides two (2) auxiliary rails for peripheral

devices like controllers, sensors and so on.

The ACT41000 RFPoL is available in a 32-pin, 5 mm × 5

mm, thermally enhanced QFN package.

Applications

• RF PA (GaN/GaAs) Drain Bias / Power with IDQ Search

• General Telecom and Industrial Power Supplies

• Telecom RF Modules

• Radar Systems

Simplified Application Diagram

Figure 1. ACT41000 Typical Application Diagram

Figure 2. Top View 32-pin 5 x 5 mm QFN Package

Key Features

• 4.5 V to 40 V Operational Input Voltage

• Programmable Output with Factory Defaults

Output Voltage: 3 V to 24 V in 12.5 mV Step

Output Current (Limit): Up to 4 A in 15.6 mA Step

• 450 kHz to 2.25 MHz Fixed-Frequency Current-Mode,

with External Clock Sync. and Spread-Spectrum

• 5 V / 350 mA Self-Bias Buck Converter with

• 20 mA AUX LDO, Programmable Output Voltage

• I

2C Interface, Fast-mode Plus (Fm+, 1 MHz)

• Protections:

UVLO, OVP, UVP (Hiccup/Latch-off), OCP, TSD

• Thermally Enhanced 5 mm × 5 mm QFN Package

• Automotive AEC-Q100 Options Available

(Contact Qorvo for conditions of AEC-Q100 options.)

Reference Design Available

ACT41000-104-REF01 reference design provides both the

drain and gate voltages for many RF PAs from Qorvo. It

automatically searches for and optimizes a PA gate voltage

to set its required Idq bias current. This reference design

demonstrates how ACT41000 simplifies RF PA system level

design and cost. The design features the QPA2211 device,

but it can be easily modified for other RF PAs. It operates

with up to 40V input voltage and outputs 24V / 4A drain

power supply.

Figure 3. Reference Design: ACT41000-104-REF01

ACT41000 Data Sheet, Rev. B, 01-Apr-2022

Subject to change without notice

1

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유사한 부품 번호 - ACT41000-104

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