SI3861 Fairchild Semiconductor, SI3861 Datasheet
SI3861
Manufacturer Part Number
SI3861
Description
Integrated Load Switch
Manufacturer
Fairchild Semiconductor
Datasheet
1.SI3861.pdf
(4 pages)
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Si3861DV
Integrated Load Switch
General Description
This device is particularly suited for compact power
management in portable electronic equipment where
2.5V to 8V input and 2.8A output current capability are
needed. This load switch integrates a small N-Channel
power MOSFET (Q1) that drives a large P-Channel
power MOSFET (Q2) in one tiny SuperSOT
package.
Applications
• Load switch
• Power management
2001 Fairchild Semiconductor Corporation
Absolute Maximum Ratings
Symbol
V
V
I
P
T
Thermal Characteristics
R
R
Package Marking and Ordering Information
Load
J
IN
ON/OFF
D
θJA
θJC
, T
SuperSOT
Device Marking
STG
Pin 1
SuperSOT™-6
D1
.861
S1
TM
Maximum Input Voltage
High level ON/OFF voltage range
Load Current
Maximum Power Dissipation
Operating and Storage Junction Temperature Range
Thermal Resistance, Junction-to-Ambient
Thermal Resistance, Junction-to-Case
-6
D2
G1
S2
G2
– Continuous
– Pulsed
Si3861DV
Device
Parameter
ON/OFF
Vin,R1
R1,C1
T
4
5
6
A
=25
TM
See Application Circuit
o
-6
C unless otherwise noted
Reel Size
Q2
7’’
(Note 1)
(Note 1)
(Note 1)
(Note 1)
Q1
Features
• –2.8 A, –8 V. R
• Control MOSFET (Q1) includes Zener protection for
• High performance trench technology for extremely
ESD ruggedness (>6KV Human body model)
low R
3
2
1
Vout,C1
Vout,C1
R2
DS(ON)
Tape width
R
R
DS(ON)
DS(ON)
DS(ON)
–55 to +150
8mm
–0.5 to 8
Ratings
IN
ON/OFF
–2.8
180
± 8
0.7
–9
60
= 55 mΩ @ V
= 70 mΩ @ V
= 100 mΩ @ V
Equivalent Circuit
+
V
DROP
August 2001
–
GS
GS
GS
= –4.5 V
= –2.5 V
Si3861DV Rev B(W)
3000 units
= –1.8 V
Quantity
OUT
Units
°C/W
°C/W
°C
W
V
V
A
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SI3861 Summary of contents
Page 1
... August 2001 = 55 mΩ –4.5 V DS(ON mΩ –2.5 V DS(ON 100 mΩ –1.8 V DS(ON) GS Equivalent Circuit IN OUT + – V DROP ON/OFF Ratings Units ± –0 –2.8 A –9 0.7 W –55 to +150 °C 180 °C/W 60 °C/W Tape width Quantity 8mm 3000 units Si3861DV Rev B(W) ...
Page 2
... R is guaranteed by design while R θJC 2. Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%. Si3861DV Load Switch Application Circuit ...
Page 3
... - -1.5V -8V ON/OFF PW = 300us, D < 125 INPUT VOLTAGE (V) IN With Input Voltage R ( θJA θ 156 °C/W θJA P(pk ( θJA Duty Cycle 100 1000 Si3861DV Rev B(W) ...
Page 4
... TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended exhaustive list of all such trademarks. ACEx™ FAST Bottomless™ FASTr™ FRFET™ CoolFET™ GlobalOptoisolator™ CROSSVOLT™ GTO™ DenseTrench™ ...