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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.

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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

Page 1 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 port...
Page 2 FD 6331L Electrical Characteristics TA = 25°C unless otherwise noted Symbol Parameter Test Conditions Min Typ Max Units Off Characteristics BVIN Vin Breakdown Voltage VON/OFF = 0 V, ID = –250 µA 8 V I...
Page 3 FD 6331L Typical Characteristics VIN = -1.8V VIN = -2.5V 0.8 VON/OFF = -1.5-8V 0.8 VON/OFF = -1.5-8V PW = 300us, D < 2% PW = 300us, D < 2% TJ = 125OC TJ = 125OC TJ = 25OC TJ = 25OC -IL, (A) -IL,...
Page 4 TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx™ FAST...

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.