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Power Switch

The W83L351YG is the power interface switch ICs for single slot ExpressCard and provide all power management functions required by ExpressCard. The W83L351YG distributes 3.3V, 3.3Vaux, and 1.5V to the ExpressCard socket. Each voltage line is protected with a built-in current limit circuit and a thermal shutdown circuit.

The NCT3521 series are high-side current-limited switches with soft-start and output shutdown discharge functions, optimized for general purpose power distribution and LCD/LVDS/eDP power ON/OFF requiring circuits timing control and protections.

The NCT3520W series are high-side current-limited switches with enable and error flag functions. It’s optimized for general purpose power distribution and Universal Serial Bus (USB) which required over-circuit & short circuits protections.

Part No. Input Voltage(V) Rds-on(mOhm) Output Current Function & Protection Package Status* RoHS Datasheet
AUX
3.0 to 3.6
100
400mA UVLO, OCP, OTP
QFN 20
P
Yes&Halogen Free
3.3V
3.0 to 3.6
50
1.7A
1.5V
1.35 to 1.65
70
1.1A
2.7V to 5.5V
80 (typ.)
2.0A Enable; Adj. Soft-start & Shutdown Output Discharge UVLO, OCP, RCP, RVP, OTP
SOT23-5 SOT23-6
P
Yes&Halogen Free
NCT3520W
4.5V to 5.5V
70 (typ.)
-X10: 1.0A -X12: 1.5A -X15: 2.0A X: H means Active High; L means Active Low Enable: Active High or Low, OC Flag & Shutdown Output Discharge UVLO, OCP, RCP, RVP, OTP
MSOP8
P
Yes&Halogen Free
*Status: P= Mass Production, S= Samples, NRFND= Not Recommended for New Design. Contact us:info@hengsen.cn