3 MHz, 600 mA / 1A Synchronous Buck Regulator

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Overview

"The FAN53600/10 is a 3 MHz step-down switching voltage regulator, available in 600 mA or 1 A options, that delivers a fixed output from an input voltage supply of 2.3 V to 5.5 V. Using a proprietary architecture with synchronous rectification, the FAN53600/10 is capable of delivering a peak efficiency of 92%, while maintaining efficiency over 80% at load currents as low as 1 mA.
The regulator operates at a nominal fixed frequency of 3 MHz, which reduces the value of the external components to as low as 1 µH for the output inductor and 4.7 µF for the output capacitor. In addition, the Pulse-Width Modulation (PWM) modulator can be synchronized to an external frequency source.
At moderate and light loads, Pulse Frequency Modulation (PFM) is used to operate the device in Power-Save Mode with a typical quiescent current of 26 µA. 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 3 MHz. In Shutdown Mode, the supply current drops below 1 µA, reducing power consumption. For applications that require minimum ripple or fixed frequency, PFM Mode can be disabled using the MODE pin.
The FAN53600/10 is available in 6-bump, 0.4 mm pitch, Wafer-Level Chip-Scale Package (WLCSP).
"

  • 600 mA or 1 A Output Current Capability
  • 26 µA Typical Quiescent Current
  • 3 MHz Fixed-Frequency Operation
  • Best-in-Class Load Transient Response
  • Best-in-Class Efficiency
  • 2.3 V to 5.5 V Input Voltage Range
  • 0.8 V to 3.3 V Fixed Output Voltage
  • Low Ripple Light-Load PFM Mode
  • Forced PWM and External Clock Synchronization
  • Internal Soft-Start
  • Input Under-Voltage Lockout (UVLO)
  • Thermal Shutdown and Overload Protection
  • Optional Output Discharge
  • 6-Bump WLCSP, 0.4 mm Pitch

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FAN53610AUC29X

Lifetime

Pb

A

H

P

WLCSP-6

1

260

REEL

3000

N

Step-Down

Voltage Mode

2.3

5.5

2.9

1

97

3000

$0.561

More Details

FAN53610AUC33X

Lifetime

Pb

A

H

P

WLCSP-6

1

260

REEL

3000

N

Step-Down

Voltage Mode

2.3

5.5

3.3

1

97

3000

$0.2875

More Details

FAN53610AUC30X

Lifetime

Pb

A

H

P

WLCSP-6

1

260

REEL

3000

N

Step-Down

Voltage Mode

2.3

5.5

3

1

97

3000

$0.561

More Details

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