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(PLP)1216-6G package is available.
|VIN Input Voltage Range (Maximum Rating)||0.6 V to 4.8 V (5.5 V)|
|VBIAS Input Voltage Range (Maximum Rating)||2.5 V to 5.5 V (6.0 V)|
|Supply Current||Typ. 25 µA (IOUT = 0 mA)|
|Standby Current||Typ. 0.01 µA|
|Switch ON Resistance||Typ. 18 mΩ (VIN = 1.0 V, VBIAS = 5.0 V)|
|Output Current||Max. 3 A|
|Thermal Shutdown Circuit||Stops at 145°C|
|Functions||A single Nch MOSFET Circuit|
|Auto-discharge Function (R5541K001D)|
Switch On Resistance vs. VIN Input Voltage
VOUT Output Voltage On Time vs. DELAY Capacitance
PRODUCT LONGEVITY PROGRAM
R5541 series operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.
The auto-discharge function is a user-selectable option.
|Product Name||Package||Quantity per Reel|
* Auto-discharge function quickly lowers the output voltage to 0 V, when the chip enable signal is switched from the active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.