3.0A, 2.4MHz, Digitally Programmable TinyBuck® Regulator

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Overview

The FAN53526 is a step-down switching voltage regulator that delivers a digitally programmable output from an input voltage supply of 2.5V to 5.5V. The output voltage is programmed through an I2C interface capable of operating up to 3.4MHz.Using a proprietary architecture with synchronous rectification, the FAN53526is capable of delivering 3.0A continuous at over 80% efficiency, maintaining that efficiency at load currents as low as 10mA. The regulator operates at a nominal fixed frequency of 2.4MHz, which reduces the value of the external components. Additional output capacitance can be added to improve regulation during load transients without affecting stability. At moderate and light loads, Pulse Frequency Modulation (PFM) is used to operate in Power-Save Mode with a typical quiescent current of 50μAat room temperature. Even with such a low quiescent current, the part exhibits excellent transient response during large load swings. At higher loads, the system automatically switches to fixed-frequency control, operating at 2.4MHz. In Shutdown Mode, the supply current drops below 1μA, reducing power consumption. PFM Mode can be disabled if fixed frequency is desired. The FAN53526is available in a 15-bump, 1.310mmx 2.015mm, 0.4mm ball pitch WLCSP.

  • Application, Graphics, an DSP Processors: ARM, Tegra, OMAP, NovaThor, ARMADA, Krit
  • Hard Disk Drives, LPDDR3, LPDDR4
  • Tablets, Netbooks, Ultra−Mobile PCs
  • Smart Phones
  • Gaming Devices
  • Fixed Frequency Operation: 2.4MHz
  • Best-in-Class Load Transient
  • I2C−Compatible Interface Up to 3.4Mbps
  • Continuous Output Current: 3.0A
  • 2.5 V to 5.5 V Input Voltage Range
  • Digitally Programmable Output Voltage: 0.6V to 1.39375V in 6.25mV steps
  • Programmable Slew Rate for Voltage Transitions
  • PFM Mode for High Efficiency in Light-Load
  • Quiescent Current in PFM Mode: 50A (Typical)
  • Input Under−Voltage Lockout (UVLO)
  • Thermal Shutdown and Overload Protection

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FAN53526UC106X

Active

Pb

A

H

P

WLCSP-15

1

260

REEL

3000

Y

Step-Down

Voltage Mode

2.5

5.5

Adjustable

3

80

2400

$0.368

More Details

FAN53526UC84X

Active

Pb

A

H

P

WLCSP-15

1

260

REEL

3000

Y

Step-Down

Voltage Mode

2.5

5.5

Adjustable

3

80

2400

$0.368

More Details

FAN53526UC128X

Active

Pb

A

H

P

WLCSP-15

1

260

REEL

3000

Y

Step-Down

Voltage Mode

2.5

5.5

Adjustable

3

80

2400

$0.3864

More Details

FAN53526UC100X

Active

Pb

A

H

P

WLCSP-15

1

260

REEL

3000

Y

Step-Down

Voltage Mode

2.5

5.5

Adjustable

3

80

2400

$0.4674

More Details

FAN53526UC288X

Active

Pb

A

H

P

WLCSP-15

1

260

REEL

3000

Y

~NA~

~NA~

2.5

5.5

Adjustable

3

80

2400

$0.368

More Details

FAN53526UC168X

Active

Pb

A

H

P

WLCSP-15

1

260

REEL

3000

Y

Step-Down

~NA~

2.5

5.5

Adjustable

3

80

2400

$0.4048

More Details

FAN53526UC00X

Active

Pb

A

H

P

WLCSP-15

1

260

REEL

3000

Y

Step-Down

Voltage Mode

2.5

5.5

Adjustable

3

80

2400

$0.3819

More Details

FAN53526UC89X

Active

Pb

A

H

P

WLCSP-15

1

260

REEL

3000

Y

Step-Down

Voltage Mode

2.5

5.5

Adjustable

3

80

2400

$0.368

More Details

FAN53526UC64X

Active

Pb

A

H

P

WLCSP-15

1

260

REEL

3000

Y

Step-Down

Voltage Mode

2.5

5.5

Adjustable

3

80

2400

$0.368

More Details

FAN53526UC88X

Active

Pb

A

H

P

WLCSP-15

1

260

REEL

3000

Y

~NA~

~NA~

2.5

5.5

Adjustable

3

80

2400

$0.4416

More Details

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