FAN53541UCX - ON Semiconductor

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

FAN53541UCX
Manufacturer

ON Semiconductor
ChipWorker Part#

CW52348720
Category

Power Management IC
Package

WLCSP-20
Description

Conv DC-DC 2.7V to 5.5V Step Down Single-Out 0.8V to 4.95V 5A 20Pin WLCSP T/R
Documentation

Datasheet

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FAN53541UCX Specifications

Attribute	Attribute Value

Part Number	FAN53541UCX
Manufacturer	ON Semiconductor
ChipWorker Part#	CW52348720
Category	Power Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	20 Pin
Case/Package	WLCSP-20
Number of Outputs	1 Output
Output Voltage	0.8V ~ 4.95V
Output Current	5 A
Number of Positions	20 Position
Switching Frequency	300 kHz
Input Voltage (Max)	5.5 V
Input Voltage (Min)	2.7 V
Output Voltage (Max)	4.95 V
Output Voltage (Min)	0.8 V
Output Current (Max)	5 A
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Input Voltage	5.5 V
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Size-Length	1.56 mm
Size-Width	1.96 mm
Size-Height	0.378 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

The FAN53541 is a step-down switching voltage regulator that delivers an adjustable output from an input voltage supply of 2.7 V to 5.5 V. Using a proprietary architecture with synchronous rectification, the FAN53541 is capable of delivering 5 A at over 90% efficiency, while maintaining a very high efficiency of over 80% at load currents as low as 2 mA. The regulator operates at a nominal fixed frequency of 2.4 MHz, which reduces the value of the external components to 470 nH for the output inductor and 20 µF for the output capacitor. Additional output capacitance can be added to improve regulation during load transients without affecting stability and inductance up to 1.2 µH may be used with additional output capacitance. 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 50 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 2.4 MHz. In shutdown mode, the supply current drops below 1 µA, reducing power consumption. PFM mode can be disabled if constant frequency is desired. The FAN53541 is available in a 20-bump 1.96 mm x 1.56 mm Wafer-Level Chip-Scale Package (WLCSP).
Features
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2.4 MHz Fixed-Frequency Operation
Best-in-Class Load Transient Response
5 A Output Current Capability
2.7 V to 5.5 V Input Voltage Range
Adjustable Output Voltage: 0.8 V to VIN•0.9
PFM Mode for High Efficiency in Light Load (Forced PWM Available on MODE Pin)
50 µA Typical Quiescent Current in PFM Mode
External Frequency Synchronization
Low Ripple Light-Load PFM Mode with Forced PWM Control
Power Good Output
Internal Soft-Start
Input Under-Voltage Lockout (UVLO)
Thermal Shutdown and Overload Protection
No External Compensation Required
20-Bump WLCSP

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