Fairchild FDG6331L Integrated Load Switch Data Sheet
Summary
The FDG6331L is an integrated load switch designed for robust power and gate management in compact portable electronics. It provides reliable ON/OFF control while minimizing power losses across a wide operating voltage range. This detailed manual offers essential electrical characteristics, maximum ratings, thermal analysis, and application circuits. Ideal for hardware designers building high-performance equipment that requires efficient, miniaturized load switching capabilities.
Page 1 Text Content
FD 6331L
April 2001
FDG6331L Integrated Load Switch General Description Features This device is particularly suited for compact power
• –0.8 A, –8 V. RDS(ON) = 260 mΩ @ VGS = –4.5 V
management in portable electronic equipment where
RDS(ON) = 330 mΩ @ VGS = –2.5 V
2.5V to 8V input and 0.8A output current capability are
needed. This load switch integrates a small N-Channel RDS(ON) = 450 mΩ @ VGS = –1.8 V
power MOSFET (Q1) that drives a large P-Channel
power MOSFET (Q2) in one tiny SC70-6 package. • Control MOSFET (Q1) includes Zener protection for ESD ruggedness (>6KV Human body model)
Applications
• High performance trench technology for extremely
• Power management
low RDS(ON)
• Load switch
• Compact industry standard SC70-6 surface mount package
Q2 Equivalent Circuit
Vin,R1 Vout,C1
–IN OUT
ON/OFF Vout,C1
ON/OFF
Pin 1
SC70-6 See Application Circuit
Absolute Maximum Ratings TA=25o C unless otherwise noted Symbol Parameter Ratings Units VIN Gate-Source Voltage (Q2) ± 8 V VON/OFF Gate-Source Voltage (Q1) –0.5 to 8 V ILoad Load Current – Continuous (Note 2) –0.8 A – Pulsed (Note 2) –2.4 PD Maximum Power Dissipation (Note 1) 0.3 W TJ, TSTG Operating and Storage Junction Temperature Range –55 to +150 °C
Thermal Characteristics RθJA Thermal Resistance, Junction-to-Ambient (Note 1a) 415 °C/W
Package Marking and Ordering Information Device Marking Device Reel Size Tape width Quantity .31 FDG6331L 7’’ 8mm 3000 units
2001 Fairchild Semiconductor Corporation FDG6331L Rev B(W)
Page Summary Contents For Fairchild FDG6331L Integrated Load Switch Data Sheet
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 4 |
| File Size | 54.80 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What is the typical load current capability of this device?
The continuous load current is rated at –0.8 A.
Does the FDG6331L include Zener protection?
Yes, the Control MOSFET (Q1) includes Zener protection for the power MOSFET (Q2).
What external components are recommended for circuit implementation?
For additional in-rush current control, R2 and C1 can be added to the application circuit.