R5541 Series

18mΩ ON Resistance 3A Load Switch IC

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Description

The R5541 Series are CMOS-based dual supply voltage load switch ICs. The R5541 is an ideal switch for supplying the power from the secondary power source such as the output of a step-down DC/DC converter to the load circuit. A built-in N-channel driver transistor with typically 18 mΩ ON resistance allows the R5541 to provide a low dropout voltage. The R5541 includes a soft-start circuit, a thermal shutdown circuit, a reverse current protection circuit (at off state), and a UVLO circuit.

Besides the low supply current by CMOS, the R5541 has low voltage with an input voltage from 0.6 V. Accordingly, the device supports on the distribution of low voltage power supply system. An ultra-small 6-pin DFN(PL)1216-6G package is available.

Spec

	Consumer
Input Voltage Range	0.6 V to 4.8 V (5.5 V)
Operating Temperature Range	-40°C to 85°C (125°C)
Supply Current	Typ. 25 µA (IOUT = 0 mA)
Standby Current	Typ. 0.01 µA
Output Current	Max. 3 A
ON-resistance	18 mΩ (VIN = 1.0 V, VBIAS = 5.0 V)
Internal FET	Nch
Package	DFN(PL)1216-6G
VBIAS Input Voltage Range (Maximum Rating)	2.5 V to 5.5 V (6.0 V)
Thermal Shutdown	145°C

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TSD	Reverse	OCP	UVLO	OVLO	Soft Start	PGOOD	Auto Discharge	Reset

Functional Description

Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
R5541K001x-E2		DFN(PL)1216-6G	R5541K	R5541K

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

TSD	Thermal Shutdown Function
Reverse Current Protection	Reverse Current Protection
OCP	Overcurrent Protection
UVLO	Undervoltage Lockout Protection
OVLO	Overvoltage Lockout Protection
Soft Start	Soft Start Function
PGOOD	Power Good Output
Auto Discharge	Auto Discharge Circuit