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All Products > Semiconductors > Power Management ICs > Voltage Regulators - Switching Regulators

Fairchild FAN53555 Digitally Programmable TinyBuck® Regulators

Fairchild's FAN53555 Digitally Programmable TinyBuck® Regulators are 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 FAN53555 is capable of delivering 5A continuous at over 80% efficiency, while maintaining over 80% efficiency at load currents as low as 10mA. Pulse currents as high as 6.5A can be supported by the 05 option. The regulator operates at a nominal fixed frequency of 2.4MHz, which reduces the value of the external components to 330nH for the output induction and as low as 20µF for the output capacitor. Additional output capacitance can be added to improve regulation during load transients without affecting stability. Inductance of up to 1.2µH may be used with additional output capacitance.
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Category   Semiconductors >  Power Management ICs >  Voltage Regulators - Switching Regulators

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Fairchild Semiconductor FAN53555BUC05X
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512-FAN53555BUC05X


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FAN53555BUC05X

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Fairchild Semiconductor Voltage Regulators - Switching Regulators 5 A, 2.4 MHz, Digitally Programmable TinyBuck Regulator
Data Sheet 3,000
In Stock
Cut Tape
1: $1.21
10: $0.941
100: $0.748
500: $0.682
Reel
3,000: $0.463
9,000: View



Min.: 1
Mult.: 1
Reel: 3,000


5.5 V 2.4 MHz 0.6 V to 1.23 V 5 A 1 + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555BUC23X
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512-FAN53555BUC23X


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FAN53555BUC23X

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Fairchild Semiconductor Voltage Regulators - Switching Regulators 5A, 2.4 MHZ, DIGITALLY PROGRAMMABLE TINYBUCK TM
Data Sheet 3,000
In Stock
Cut Tape
1: $1.85
10: $1.50
100: $1.20
500: $1.05
Reel
3,000: $0.78
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000


5.5 V 2.4 MHz 1.15 V 5 A 1 Output + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555UC00X
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512-FAN53555UC00X


To purchase full reel, order in multiples of 3000:
FAN53555UC00X

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Fairchild Semiconductor Voltage Regulators - Switching Regulators 5A, 2.4 MHZ, DIGTLY PRGRMMABLE TINYBUCK
Data Sheet 3,000
In Stock
Cut Tape
1: $1.70
10: $1.37
100: $1.10
500: $0.963
Reel
3,000: $0.715
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000
5.5 V 2.4 MHz 1.05 V, 1.2 V 5 A 2 Output + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555BUC08X
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512-FAN53555BUC08X


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FAN53555BUC08X

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Fairchild Semiconductor Voltage Regulators - Switching Regulators 5 A, 2.4 MHz, Digitally Programmable TinyBuck Regulator
Data Sheet 2,740
In Stock
Cut Tape
1: $1.85
10: $1.50
100: $1.20
500: $1.05
Reel
3,000: $0.78
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000
5.5 V 2.4 MHz 1.02 V, 1.15 V 5 A 2 Output + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555UC042X
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512-FAN53555UC042X


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FAN53555UC042X

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Fairchild Semiconductor Voltage Regulators - Switching Regulators TinyBuck 5A 2.4MHz
Data Sheet 3,000
In Stock
Cut Tape
1: $1.85
10: $1.50
100: $1.20
500: $1.05
Reel
3,000: $0.78
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000
5.5 V 2.4 MHz 1.1 V, 1.2 V 5 A 2 Output + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555UC05X
Enlarge
512-FAN53555UC05X


To purchase full reel, order in multiples of 3000:
FAN53555UC05X

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Fairchild Semiconductor Voltage Regulators - Switching Regulators 5A, 2.4 MHZ, DIGTLY PRGRMMABLE TINYBUCK
Data Sheet 2,830
In Stock
Cut Tape
1: $1.85
10: $1.50
100: $1.20
500: $1.05
Reel
3,000: $0.78
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000
5.5 V 2.4 MHz 600 mV to 1.23 V 5 A 1 Output + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555UC04X
Enlarge
512-FAN53555UC04X


To purchase full reel, order in multiples of 3000:
FAN53555UC04X

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Fairchild Semiconductor Voltage Regulators - Switching Regulators TinyBuck 5A 2.4MHz
Data Sheet 2,050
In Stock
Cut Tape
1: $1.85
10: $1.50
100: $1.20
500: $1.05
Reel
3,000: $0.78
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000
5.5 V 2.4 MHz 603 mV to 1.411 V 5 A 1 Output + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555UC03X
Enlarge
512-FAN53555UC03X


To purchase full reel, order in multiples of 3000:
FAN53555UC03X

New Product
New Product


Fairchild Semiconductor Voltage Regulators - Switching Regulators 5A, 2.4 MHZ, DIGTLY PRGRMMABLE TINYBUCK
Data Sheet 3,000
In Stock
Cut Tape
1: $1.85
10: $1.50
100: $1.20
500: $1.05
Reel
3,000: $0.78
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000
5.5 V 2.4 MHz 0.9 V 5 A 1 Output + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555UC01X
Enlarge
512-FAN53555UC01X


To purchase full reel, order in multiples of 3000:
FAN53555UC01X

New Product
New Product


Fairchild Semiconductor Voltage Regulators - Switching Regulators 5A, 2.4 MHZ, DIGTLY PRGRMMABLE TINYBUCK
Data Sheet 3,000
In Stock
Cut Tape
1: $1.85
10: $1.50
100: $1.20
500: $1.05
Reel
3,000: $0.78
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000
5.5 V 2.4 MHz 0.9 V 5 A 1 Output + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555UC08X
Enlarge
512-FAN53555UC08X


To purchase full reel, order in multiples of 3000:
FAN53555UC08X

New Product
New Product


Fairchild Semiconductor Voltage Regulators - Switching Regulators 5A, 2.4 MHZ, DIGTLY PRGRMMABLE TINYBUCK
Data Sheet 2,650
In Stock
Cut Tape
1: $1.85
10: $1.50
100: $1.20
500: $1.05
Reel
3,000: $0.78
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000
5.5 V 2.4 MHz 600 mV to 1.23 V 5 A 1 Output + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555BUC24X
Enlarge
512-FAN53555BUC24X


To purchase full reel, order in multiples of 3000:
FAN53555BUC24X

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Fairchild Semiconductor Voltage Regulators - Switching Regulators 5 A, 2.4 MHz, Digitally Programmable TinyBuck Regulator
Page 545

Data Sheet
2,887
In Stock
Cut Tape
1: $1.86
10: $1.50
100: $1.20
500: $1.05
Reel
3,000: $0.78
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000


5.5 V 2.4 MHz 3 V 5 A + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555UC24X
Enlarge
512-FAN53555UC24X


To purchase full reel, order in multiples of 3000:
FAN53555UC24X

New Product
New Product


Fairchild Semiconductor Voltage Regulators - Switching Regulators 5 A, 2.4 MHz, Digitally Programmable TinyBuck Regulator
Page 545

Data Sheet
2,900
In Stock
Cut Tape
1: $1.86
10: $1.50
100: $1.20
500: $1.05
Reel
3,000: $0.78
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000


5.5 V 2.4 MHz 3 V 5 A + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555BUC09X
Enlarge
512-FAN53555BUC09X


To purchase full reel, order in multiples of 3000:
FAN53555BUC09X

New Product
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Fairchild Semiconductor Voltage Regulators - Switching Regulators 5 A, 2.4 MHz, Digitally Programmable TinyBuck Regulator
Data Sheet 190
In Stock
Cut Tape
1: $2.91
10: $2.35
100: $1.88
500: $1.64
Reel
3,000: $1.22
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000
5.5 V 2.4 MHz 1.1 V 5 A + 85 C SMD/SMT WLCSP-20
Fairchild Semiconductor FAN53555UC09X
Enlarge
512-FAN53555UC09X


To purchase full reel, order in multiples of 3000:
FAN53555UC09X

New Product
New Product


Fairchild Semiconductor Voltage Regulators - Switching Regulators 5A 2.4 MHz Digitally Program TinyBuck Reg
Data Sheet 50
In Stock
Cut Tape
1: $1.91
10: $1.55
100: $1.24
500: $1.08
Reel
3,000: $0.806
9,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 3,000
5.5 V 2.4 MHz 1.1 V 5 A + 85 C SMD/SMT WLCSP-20
Compare up to 20 parts.
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