FAN2510 — 100 mA CMOS LDO Regulators with Fast Start Enable
May 2013
FAN2510
100 mA CMOS LDO Regulators with Fast Start Enable
Features
•
•
•
•
•
•
•
•
Ultra-Low Power Consumption
100 mV Dropout Voltage at 100 mA
Output Voltage of 3.3 V
25
μA
Ground Current at 100 mA
Enable / Shutdown Control
SOT23-5 package
Thermal Limiting
300 mA Peak Current
Description
The FAN2510 micropower low-dropout voltage regulators
utilizes CMOS technology to offer a new level of cost-
effective performance in mobile handsets, laptop and
notebook portable computers, and other portable
devices. Features include extremely low power consump-
tion, low shutdown current, low dropout voltage, excep-
tional loop stability able to accommodate a wide variety of
external capacitors, and a compact SOT23-5 surface-
mount package.
The FAN2510 offers the fast power-cycle time required in
Mobile handset applications. These products offer signifi-
cant improvements over older BiCMOS designs and is
pin-compatible with many popular devices. The output is
thermally protected against overload.
Pin 4 allows the user to adjust the output voltage over a
wide range using an external voltage divider.
Applications
• Mobile Phones and Accessories
• Portable Cameras and Video Recorders
• Laptop, Notebook, and Palmtop Computers
Ordering Information
Part Number
FAN2510SX
V
OUT
Adj.
Pin 4 Function
Adjust
Top Mark
ANA
Package
SOT-23 5L
Packing
Method
Tape and Reel
Tape and Reel Information
Quantity
3000
Reel Size
7 inches
Width
8 mm
© 2010 Fairchild Semiconductor Corporation
FAN2510 Rev. 1.1.0
www.fairchildsemi.com
1
FAN2510 — 100 mA CMOS LDO Regulators with Fast Start Enable
Block Diagram
Figure 1. Block Diagram
Pin Configuration
Figure 2. Pin Configuration
Pin Descriptions
Pin Name
ADJ
Pin No.
4
Type
output voltage.
Enable
Digital Input
0:
Shutdown V
OUT
1:
Enable V
OUT
Power In
Power
Input
Functional Description
FAN2510 Adjust.
Ratio of Potential divider from V
OUT
to ADJ Determines
EN
V
IN
V
OUT
GND
3
1
5
2
Voltage Input.
Supply voltage input.
Ground
Power Out
Voltage Output.
Regulated output voltage.
© 2010 Fairchild Semiconductor Corporation
FAN2510 Rev. 1.1.0
www.fairchildsemi.com
2
FAN2510 — 100 mA CMOS LDO Regulators with Fast Start Enable
Absolute Maximum Ratings
(1)
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only.
Parameter
Power Supply Voltages
V
IN
(Measured to GND)
Enable Input (EN)
Applied Voltage (Measured to GND)
(2)
Power
Dissipation
(3)
Temperature
Junction
Lead Soldering (5 s)
Storage
Min.
0
0
Max.
7
7
Internally Limited
Unit
V
V
-65
-65
150
260
150
°C
°C
°C
4
kV
Electrostatic Discharge
(4)
Notes:
1. Functional operation under any of these conditions is NOT implied. Performance and reliability are guaranteed only
if Recommended Operating Conditions are not exceeded.
2. Applied voltage must be current limited to specified range.
3. Based upon thermally limited junction temperature:
T
J
(
max
)
– T
A
P
D
= -------------------------------
Θ
JA
4. Human Body Model is 4 kV minimum using Mil Std. 883E, method 3015.7. Machine Model is 400 V minimum using
JEDEC method A115-A.
Recommended Operating Conditions
The recommended Operating Conditions table defines the conditions for actual device operation. Recommended oper-
ating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recom-
mend exceeding them or designing to Absolute Maximum Ratings.
Symbol
V
IN
V
EN
T
J
θ
JA
θ
JC
Input Voltage Range
Enable Input Voltage
Junction Temperature
Parameter
Min.
2.7
0
-40
Nom.
Max.
6.5
V
IN
+125
Unit
V
V
°C
°C/W
°C/W
Thermal Resistance, Junction to Air
Thermal Resistance, Junction to Case
220
130
© 2010 Fairchild Semiconductor Corporation
FAN2510 Rev. 1.1.0
www.fairchildsemi.com
3
FAN2510 — 100 mA CMOS LDO Regulators with Fast Start Enable
Electrical Characteristics
(5, 6)
Symbol
Regulator
I
OUT
= 100
μA
V
DO
V
REF
∆V
O
(7)
Parameter
Conditions
Min.
Typ.
2.5
50
100
Max.
4.0
75
140
1.40
6
50
Units
mV
mV
mV
V
%
μA
Drop-Out Voltage
Reference Voltage Accuracy
Output Voltage Accuracy
Ground Pin Current
Current Limit
I
OUT
= 50 mA
I
OUT
= 100 mA
1.24
-6
I
OUT
= 100 mA
1.32
I
GND
Protection
Thermally Protected
EN = 0 V
150
1.2
2.0
1.4
1
1
0.4
1
μA
°C
V
V
μA
μA
I
GSD
T
SH
Enable Input
V
IL
V
IH
I
IH
I
I
Shut-down Current
Thermal Protection Shutdown Temperature
Logic Low Voltage
Logic High Voltage
Input Current High
Input Current Low
Switching Characteristics
Parameter
Enable Input
(8)
Response Time
500
μsec
Max.
Unit
Performance Characteristics
(5, 6)
Symbol
∆V
OUT
/
∆V
IN
∆V
OUT
/
V
OUT
Parameter
Line Regulation
Load Regulation
Conditions
V
IN
= (V
OUT
+ 1) to 6.5 V
I
OUT
= 0.1 to 100 mA
10 Hz - 1 kHz,
C
OUT
= 10
μF,
C
BYP
= 0.01
μF
f > 10 kHz,
C
OUT
= 10
μF,
C
BYP
= 0.01
μF
f = 120 Hz at V
IN
,
C
OUT
= 10
μF,
C
BYP
= 0.01
μF
Typ.
0.3
1.0
< 7.00
Max.
Unit
%/V
2.0
%
e
N
Output Noise
μV
/ Hz
< 0.01
PSRR
Power Supply Rejection
43
dB
Notes:
5. Unless otherwise stated; T
A
= 25°C, V
IN
= V
OUT
+ 1 V, I
OUT
= 100
μA,
and V
IH
> 2.0 V.
6. Bold values indicate -40
≤
T
J
≤
125°C.
7. The adjustable version has a band-gap voltage range of 1.24 V to 1.40 V with a nominal value of 1.32 V.
8. When using repeated cycling.
© 2010 Fairchild Semiconductor Corporation
FAN2510 Rev. 1.1.0
www.fairchildsemi.com
4
FAN2510 — 100 mA CMOS LDO Regulators with Fast Start Enable
Typical Performance Characteristics
Figure 3. Power Supply Rejection Ratio
Figure 4. Power Supply Rejection Ratio
Figure 5. Power Supply Rejection Ratio
Figure 6. Power Supply Rejection Ratio
Figure 7. Power Supply Rejection Ratio
Figure 8. Power Supply Rejection Ratio
© 2010 Fairchild Semiconductor Corporation
FAN2510 Rev. 1.1.0
www.fairchildsemi.com
5
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