Mini Buck Converter for RF Power Amplifiers

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Overview

The NCP6360, a PWM synchronous step-down DC-to-DC converter, is optimized for supplying RF Power Amplifiers (PAs) used into 3G/4G wireless systems (Mobile/ Smart Phones, Phablets, Tablets, ...) powered by single−cell Lithium-Ion batteries. The device is able to deliver up to 800 mA. The output voltage is monitorable from 0.6 V to 3.4 V by an analog control pin VCON. The analog control allows dynamically optimizing the RF Power Amplifier's efficiency during a communication while for example in roaming situation with as a benefit an increased talk time. Also at light load for optimizing the DC-to-DC converter efficiency, the NCP6360 enters automatically in a PFM mode and operates in a slower switching frequency corresponding to a reduced quiescent current in regards to the PWM mode for which the device operates at a switching frequency of 6 MHz. Synchronous rectification offers improved system efficiency. The NCP6360 is available in a space saving, low profile 1.5 x 1.0 mm CSP-6 package.

  • 3G / 4G RF Power Amplifiers (RF PAs)
  • 3G / 4G Wireless Systems
  • 3G / 4G Smart/Mobile Phones, Phablets, Tablets
  • Input Voltage from 2.7V to 5.5V
  • Ajustable Output Voltage (0.6V to 3.4V) using Control Pin VCON
  • 6 MHz Switching Frequency
  • PFM/PWM Automatic Mode Change
  • Low Quiescent Current (30 µA Typ)
  • Embedded Thermal Protections
  • 1.5 x 1.0 mm² / 0.5 mm Pitch CSP Package

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NCP6360FCCT2G

Active

Pb

A

H

P

WLCSP-6

1

260

DSFTP

3000

N

Step-Down

Voltage Mode

2.7

5.5

0.6 to 3.4

0.8

95

6000

$0.2133

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