LDO Regulator, 500 mA, Low Iq, High PSRR, Low Noise

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Overview

The FAN25800 is a linear low-dropout regulator with a high PSRR (85 dB at 100 Hz) and low output noise (typically 8 µVRMS over a 10 Hz to 100 kHz bandwidth). The LDO can provide up to 250 mA of output current for 2.8 V output and up to 500 mA of output current for 3.3 V output.
The enable control pin can be used to shut down the device and disconnect the output load from the input. During shutdown, the supply current drops below 1 µA.
The FAN25800 is designed to be stable with space-saving ceramic capacitors as small as 0201 case size. The FAN25800 is available in a 4-bump, 0.35 mm pitch, WLCSP package.

  • VIN: 2.3 V to 5.5 V
  • VOUT = 3.3 V (IOUT Max. = 500 mA)
  • VOUT = 2.8 V (IOUT Max. = 250 mA)
  • Output Noise Density at 250 mA and 10 kHz = 19 nV/√Hz (Integrated 8 µVrms)
  • Low IQ of 17 µA in Regulation and Low-IQ Dropout Mode with Optimized Dropout Transitions
  • <70 mV Dropout Voltage at 250 mA Load
  • Controlled Soft-Start to Reduce Inrush Current
  • Thermal Shutdown Protection (TSD)
  • Input Under-Voltage Lockout (UVLO)
  • Short-Circuit Protection (SCP)
  • Stable with Two 1.5 µF, 0201 Ceramic Capacitors at VOUT
  • 4-Ball WLCSP, 0.65 mm x 0.65 mm, 0.35 mm Pitch, Plated Solder, 330 µm Maximum Thickness

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CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

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Container Qty.

ON Target

Output

Polarity

VO (V)

IO Typ (A)

VI Min (V)

VI Max (V)

VDO Typ (V)

Iq Typ (mA)

PSRR (dB)

Noise (µVrms)

Enable

PowerGood

Application

Reference Price

FAN25800AUC28X

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Obsolete

CAD Model

Pb

A

H

P

WLCSP-4

1

260

REEL

3000

N

Single

Positive

2.8

0.5

2.3

5.5

-

0.65

76

25

Yes

No

-

Price N/A

More Details

FAN25800AUC33X

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Obsolete

CAD Model

Pb

A

H

P

WLCSP-4

1

260

REEL

3000

N

Single

Positive

3.3

0.5

2.3

5.5

-

0.65

76

25

Yes

No

-

Price N/A

More Details

FAN25800AUCF27X

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Obsolete

CAD Model

Pb

A

H

P

WLCSP-4

1

260

REEL

3000

N

Single

Positive

2.7

0.5

2.3

5.5

-

0.65

76

25

Yes

No

-

Price N/A

More Details

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