fan1086dx-nl Fairchild Semiconductor, fan1086dx-nl Datasheet

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fan1086dx-nl

Manufacturer Part Number
fan1086dx-nl
Description
Fan1086 1.5a Adjustable/fixed Low Dropout Linear Regulator
Manufacturer
Fairchild Semiconductor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FAN1086DX-NL
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Features
• Low dropout voltage
• Load regulation: 0.05% typical
• Trimmed current limit
• On-chip thermal limiting
• Standard SOT-223, TO-263, and TO-252 packages
• Three-terminal adjustable or fixed 2.5V, 2.85V, 3.3V, 5V
Applications
• Active SCSI terminators
• High efficiency linear regulators
• Post regulators for switching supplies
• Battery chargers
• 5V to 3.3V linear regulators
• Motherboard clock supplies
Typical Applications
FAN1086
1.5A Adjustable/Fixed Low Dropout Linear Regulator
V
IN
V
= 3.3V
V
IN
OUT
= 5V
= V
10 F
REF
10 F
(1 + R2/R1) + I
+
+
Adj
V
IN
V
• R2
IN
FAN1086-2.85
FAN1086
ADJ
GND
V
OUT
V
OUT
Description
The FAN1086 and FAN1086-2.5, -2.85, -3.3 and -5 are low
dropout three-terminal regulators with 1.5A output current
capability. These devices have been optimized for low voltage
where transient response and minimum input voltage are
critical. The 2.85V version is designed specifically to be
used in Active Terminators for SCSI bus.
Current limit is trimmed to ensure specified output current
and controlled short-circuit current. On-chip thermal limiting
provides protection against any combination of overload and
ambient temperatures that would create excessive junction
temperatures.
Unlike PNP type regulators where up to 10% of the output
current is wasted as quiescent current, the quiescent current
of the FAN1086 flows into the load, increasing efficiency.
The FAN1086 series regulators are available in the industry-
standard SOT-223, TO-263, and TO-252 power packages.
R1
124
R2
24.9
+
22 F
+
2.85V at 1.5A
22 F
1.5V at 1.5A
www.fairchildsemi.com
REV. 1.0.7 11/10/03

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fan1086dx-nl Summary of contents

Page 1

FAN1086 1.5A Adjustable/Fixed Low Dropout Linear Regulator Features • Low dropout voltage • Load regulation: 0.05% typical • Trimmed current limit • On-chip thermal limiting • Standard SOT-223, TO-263, and TO-252 packages • Three-terminal adjustable or fixed 2.5V, 2.85V, 3.3V, ...

Page 2

PRODUCT SPECIFICATION Pin Assignments Front View 3 Tab OUT 1 4-Lead Plastic SOT-223 = 15 C/W* JC *With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane, 30°C/W to more ...

Page 3

FAN1086 Electrical Characteristics Operating Conditions 25°C unless otherwise specified The denotes specifications which apply over the specified operating temperature range. Parameter 3 Reference Voltage , V 1.5V REF 10mA Output Voltage 10mA FAN1086-2.5, 4V ...

Page 4

PRODUCT SPECIFICATION Typical Performance Characteristics 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0 0.3 0.6 0.9 OUTPUT CURRENT (A) Figure 1. Dropout Voltage vs. Output Current 1.250 1.245 1.240 1.235 1.230 1.225 1.220 1.215 1.210 ...

Page 5

FAN1086 Typical Performance Characteristics 2.0 1.75 1.5 1.25 1.0 -75 -50 - 100 125 150 175 JUNCTION TEMPERATURE ( C) Figure 7. Short-Circuit Current vs. Temperature 10 7.5 TO-263 5 SOT-223 2 ...

Page 6

PRODUCT SPECIFICATION Mechanical Dimensions 3-Lead TO-263 Package Inches Millimeters Symbol Min. Max. Min. A .160 .190 4.06 b .020 .036 0.51 b2 .049 .051 1.25 c2 .045 .055 1.14 D .340 .380 8.64 E .380 .405 9.65 e .100 BSC ...

Page 7

FAN1086 Mechanical Dimensions 4-Lead SOT-223 Package Inches Millimeters Symbol Min. Max. Min. A — .071 — A1 — .181 — B .025 .640 .033 c — .090 — D .248 .264 6.30 E .130 .148 3.30 e .115 .124 2.95 ...

Page 8

PRODUCT SPECIFICATION Mechanical Dimensions 3-Lead TO-252 Package Inches Millimeters Symbol Min. Max. Min. A .086 .094 2.19 b .025 .035 0.64 b2 .030 .045 0.76 b3 .205 5.21 .215 c .018 .024 0.46 c2 .018 .023 0.46 D .210 .245 ...

Page 9

... PRODUCT SPECIFICATION Ordering Information Product Number Package FAN1086DX TO-252 FAN1086MX TO-263 FAN1086SX SOT-223 FAN1086D25X TO-252 FAN1086M25X TO-263 FAN1086S25X SOT-223 FAN1086D285X TO-252 FAN1086M285X TO-263 FAN1086S285X SOT-223 FAN1086D33X TO-252 FAN1086M33X TO-263 FAN1086S33X SOT-223 FAN1086D5X TO-252 FAN1086M5X TO-263 FAN1086S5X SOT-223 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN ...

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