FP6146
fitipower integrated technology lnc.
300mA Low Noise High PSRR
85T
LDO with Shutdown
Description
Features
The FP6146 is a low dropout, low noise, high PSRR,
very low quiescent current positive linear regulator.
The FP6146 can supply 200mA output current with
low dropout voltage at about 300mV that optimized
for battery-powered systems or portable wireless
devices such as mobile phones. The shutdown
function can provide remote control for the external
signal to decide the on/off state of FP6146 that
consumes less than 0.1µA during shutdown mode.
The FP6146 regulator is able to operate with output
capacitors as small as 1µF for stability. Other than
the current limit protection, FP6146 also offers the on
chip thermal shutdown feature providing protection
against overload or any condition when the ambient
temperature exceeds the maximum junction
temperature.
Low Dropout Voltage of 300mV at 200mA
Low 30μVrms Output Noise
Guaranteed 300mA Output Current
High Power Supply Rejection Ratio of 70dB at
10kHz
Very Low Quiescent Current at 35µA
Max. 2% Output Voltage Accuracy
Needs Only 1µF Capacitor for Stability
Fast Response in Line/Load Transient
Thermal Shutdown Protection
Current Limit Protection
Low-ESR Ceramic Capacitor for Output Stability
Miniature Packages:
SOT-23-3, SOT-23-5, TSOT-23-5, TDFN-6
(1.6mm×1.6mm), SC-82-4 and SC-70-5
RoHS Compliant
The FP6146 offers high precision output voltage of
2%. It is housed in low-profile, space-saving
SOT-23-3,
SOT-23-5,
TSOT-23-5,
TDFN-6
(1.6mm×1.6mm), SC-82-4 and SC-70-5 packages.
Applications
Pin Assignments
Ordering Information
S5 Package (SOT-23-5)
FP6146-□□□□
VOUT
NC
5
4
Mobile Phones
Notebook, Sub-Notebook and Tablet Computers
DSC
Portable Information Appliances
Battery Power Systems
TR: Tape/Reel
G: Green
1
2
3
VIN GND SHDN
S3 Package (SOT-23-3)
VIN
3
FP6146-2.1-APR-2014
1
2
GND
VOUT
Package Type
S3: SOT-23-3
S5: SOT-23-5
S8: TSOT-23-5
WD: TDFN-6 (1.6mm×1.6mm)
C8: SC-82-4
C5: SC-70-5
Output Voltage
11: 1.1V 27: 2.7V
12: 1.2V 28: 2.8V
15: 1.5V 30: 3.0V
18: 1.8V 31: 3.1V
25: 2.5V 33: 3.3V
26: 2.6V 36: 3.6V
Note 1: Please consult Fitipower sales office or authorized
distributors for availability of special output voltages.
1
FP6146
fitipower integrated technology lnc.
Part Number
NC
VOUT
FP6146-12S3G
5
1
2
4
SOT-23-5 Marking
3
Part Number
VIN GND SHDN
WD Package TDFN-6 (1.6mm×1.6mm)
VOUT
1
NC
2
GND
3
GND
6
VIN
5
NC
4
SHDN
C8 Package (SC-82-4)
VIN
VOUT
4
3
1
2
GND
SHDN
C5 Package (SC-70-5)
Product
Code
FB8
Part Number
Product
Code
FP6146-11S5G
Product
Code
FH9
FP6146-27S5G
Product
Code
B6G
FP6146-12S5G
H2=
FP6146-28S5G
H6=
FP6146-15S5G
H3=
FP6146-30S5G
H7=
FP6146-18S5G
H4=
FP6146-31S5G
t3G
FP6146-25S5G
H5=
FP6146-33S5G
H8=
FP6146-26S5G
r5=
FP6146-36S5G
a2G
Part Number
TSOT-23-5 Marking
FP6146-12S8G
Product
Code
H9=
FP6146-28S8G
Product
Code
K3=
FP6146-15S8G
H0=
FP6146-30S8G
K4=
FP6146-18S8G
K1=
FP6146-31S8G
t4G
FP6146-25S8G
K2=
FP6146-33S8G
K5=
FP6146-26S8G
r6=
FP6146-36S8G
a3G
Part Number
Part Number
TDFN-6 (1.6mm×1.6mm) Marking
FP6146-12WDG
Product
Code
f
FP6146-28WDG
Product
Code
m
FP6146-15WDG
h
FP6146-30WDG
n
FP6146-18WDG
i
FP6146-31WDG
g
FP6146-25WDG
k
FP6146-33WDG
r
FP6146-26WDG
B-
FP6146-36WDG
s
Part Number
Part Number
SC-82-4 Marking
VOUT
NC
5
4
1
85T
SOT-23-3 Marking
S8 Package (TSOT-23-5)
2
3
FP6146-12C8G
Product
Code
T1=
FP6146-28C8G
Product
Code
T5=
FP6146-15C8G
T2=
FP6146-30C8G
T6=
FP6146-18C8G
T3=
FP6146-31C8G
t5G
FP6146-25C8G
T4=
FP6146-33C8G
T7=
FP6146-26C8G
r4=
FP6146-36C8G
a1G
Part Number
Part Number
VIN GND SHDN
SC-70-5 Marking
Figure 1. Pin Assignment of FP6146
FP6146-2.1-APR-2014
FP6146-12C5G
Product
Code
a5G
FP6146-28C5G
Product
Code
A1G
FP6146-15C5G
a6G
FP6146-30C5G
A2G
FP6146-18C5G
a7G
FP6146-31C5G
A3G
FP6146-25C5G
a8G
FP6146-33C5G
A4G
FP6146-26C5G
a9G
FP6146-36C5G
A5G
Part Number
Part Number
2
FP6146
fitipower integrated technology lnc.
85T
Typical Application Circuit
VIN
VIN
CIN
1µF
GND
VSHDN
SHDN
VOUT
VOUT
COUT
1µF
FP6146
NC
Figure 2. Typical Application Circuit of FP6146
Note 2: To prevent oscillation, it is recommended to use minimum 1µF X7R or X5R dielectric capacitors if ceramics are used as
input/output capacitors.
Functional Pin Description
Pin Name
VIN
VOUT
NC
GND
Pin Function
Power is supplied to this device from this pin which is required an input filter capacitor. In general, the input
capacitor in the range of 1µF to 10µF is sufficient.
The output supplies power to loads. The output capacitor is required to prevent output voltage from oscillation.
The FP6146 is stable with an output capacitor 1µF or greater. The larger output capacitor will be required for
application with larger load transients. The large output capacitor could reduce output noise, improve stability
and PSRR.
No connection
Common ground pin
Pull this pin high to enable IC, Pull this pin low to shutdown IC. Floating this pin will be shutdown due to the
built-in pull-low resistor.
FP6146-2.1-APR-2014
3
FP6146
fitipower integrated technology lnc.
85T
Block Diagram
RSEN
PMOS
VIN
VOUT
Current
Limit
SHDN
Power
Shutdown
_
Error
Amp
R1
+
5MΩ
Thermal
Shutdown
Vref
R2
GND
Figure 3. Block Diagram of FP6146
FP6146-2.1-APR-2014
4
fitipower integrated technology lnc.
FP6146
Absolute Maximum Ratings
● VIN,
85T
to GND --------------------------------------------------------------------------------------------- +6V
● Power Dissipation @TA =25ºC, (PD)
SOT-23-3 ------------------------------------------------------------------------------------------------- +0.4W
SOT-23-5 ------------------------------------------------------------------------------------------------- +0.4W
TSOT-23-5 ----------------------------------------------------------------------------------------------- +0.4W
TDFN-6 (1.6mm×1.6mm) ---------------------------------------------------------------------------- +0.63W
SC-82-4 -------------------------------------------------------------------------------------------------- +0.2W
SC-70-5 -------------------------------------------------------------------------------------------------- +0.3W
● Package Thermal Resistance, (θJA)
SOT-23-3 ------------------------------------------------------------------------------------------------- +250ºC/W
SOT-23-5 ------------------------------------------------------------------------------------------------- +250ºC/W
TSOT-23-5 ----------------------------------------------------------------------------------------------- +250ºC/W
TDFN-6 (1.6mm×1.6mm) ---------------------------------------------------------------------------- +160ºC/W
SC-82-4 -------------------------------------------------------------------------------------------------- +500ºC/W
SC-70-5 -------------------------------------------------------------------------------------------------- +330ºC/W
● Maximum Junction Temperature (TJ) ------------------------------------------------------------------------ +150ºC
● Storage Temperature Range (TSTG) -------------------------------------------------------------------------- -65ºC to +150ºC
● Lead Temperature (Soldering, 10 sec.) (TLEAD) ------------------------------------------------------------ +260ºC
Note 3: tresses beyond those listed under “Absolute Maximum Ratings" may cause permanent damage to the device.
Recommended Operating Conditions
● Input Voltage (VIN) ------------------------------------------------------------------------------------------------ +2.0V to +5.5V
● Operating Temperature Range (TOPR) ----------------------------------------------------------------------- -40ºC to +85ºC
FP6146-2.1-APR-2014
5
FP6146
fitipower integrated technology lnc.
85T
Electrical Characteristics
(VIN=VOUT+1V,
pin connected to VIN, CIN=1µF, COUT=1µF, TA=25ºC, unless otherwise specified)
Parameter
Symbol
Current Limit
ILIMIT
RLoad=1Ω
IQ
IOUT=0mA
Quiescent Current
Standby Current
ISTBY
VOUT
Output Voltage Accuracy
Conditions
Min
Typ
Max
300
Pin Connected to GND
IOUT=1mA
Unit
mA
35
60
µA
0.1
1
µA
+2
%
-2
VOUT=1.2V
1100
1300
VOUT=1.5V
910
1100
VOUT=1.8V
750
900
VOUT=2.5V
500
600
VOUT=3.0V
270
330
VOUT=3.3V
230
270
VOUT=1.2V
1950
2300
VOUT=1.5V
1600
1920
VOUT=1.8V
1450
1750
VOUT=2.5V
980
1170
VOUT=3.0V
510
610
VOUT=3.3V
400
480
IOUT=150mA
Dropout Voltage (Note4)
VDROP
mV
IOUT=300mA
Line Regulation
VLINE
IOUT=1mA, VIN=VOUT +1V to 5V
1
8
mV
Load Regulation (Note5)
VLOAD
IOUT=0mA to 150mA
6
30
mV
Ripple Rejection (Note6)
PSRR
VIN=VOUT+1V,
fRIPPLE = 10kHz
70
dB
Output Noise Voltage (Note6)
VNOISE
COUT=1μF, IOUT=0mA
30
μVRMS
IOUT=1mA, VIN=5V
100
ppm/ºC
145
ºC
25
ºC
5
MΩ
Temperature Coefficient
(Note6)
TC
TSD
Thermal Shutdown Threshold
(Note6)
Pull-Low Resistance
Pin Threshold
TSD
Hysteresis
R
V
(
Start-up
V
( FF
Shutdown
1.0
V
0.4
V
Note 4: The dropout voltage is defined as VIN-VOUT, which is measured when VOUT drops 2% of its normal value with the specified
output current.
Note 5: Load regulation and dropout voltage are measured at a constant junction temperature by using a 40ms low duty cycle current
pulse.
Note 6: Guarantee by design.
FP6146-2.1-APR-2014
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FP6146
fitipower integrated technology lnc.
85T
Typical Performance Curves
50
50
VOUT=2.8V
CIN=1uF
COUT=1uF
VOUT=1.8V
CIN=1uF
COUT=1uF
45
Quiescent Current (uA)
Quiescent Current (uA)
45
40
35
30
40
35
30
3.0
3.5
4.0
4.5
5.0
5.5
6.0
3.0
3.5
4.0
Figure 4. Quiescent Current vs. Input Voltage
5.5
6.0
750
VIN=4V
VOUT=2.5V
CIN=COUT=1uF
700
Current Limit (mA)
Current Limit (mA)
5.0
Figure 5. Quiescent Current vs. Input Voltage
750
700
4.5
Input Voltage (V)
Input Voltage (V)
650
600
550
VIN=4V
VOUT=1.8V
CIN=COUT=1uF
650
600
550
500
500
450
450
-25
0
25
50
75
100
125
-25
Figure 6. Current Limit vs. Temperature
VIN=2.8V, VOUT=1.8V, IOUT=1mA to 100mA
50
75
100
125
Figure 7. Current Limit vs. Temperature
VIN=3.8V, VOUT=2.8V, IOUT=1mA to 100mA
VOUT
IOUT
IOUT
FP6146-2.1-APR-2014
25
Temperature ( C)
VOUT
Figure 8. Load Transition Response
0
0
0
Temperature ( C)
Figure 9. Load Transition Response
7
FP6146
fitipower integrated technology lnc.
85T
Typical Performance Curves (Continued)
VIN=4.3V, VOUT=3.3V, IOUT=1mA to 100mA
VOUT
VIN=3.5V, VOUT=2.5V, IOUT=1mA to 100mA
VOUT
IOUT
IOUT
Figure 10. Load Transition Response
VIN=3.8V, VOUT=2.8V, IOUT=1mA to 150mA
Figure 11. Load Transition Response
VIN=3.8V, VOUT=2.8V, IOUT=0mA to 150mA
VOUT
VOUT
IOUT
IOUT
Figure 12. Load Transition Response
Figure 13. Load Transition Response
VIN=4V, VOUT=2.8V, IOUT=100mA
VIN=4V, VOUT=2.8V, IOUT=100mA
VOUT
VOUT
Figure 14. Shutdown/Enable Test
FP6146-2.1-APR-2014
Figure 15. Shutdown/Enable Test
8
FP6146
fitipower integrated technology lnc.
85T
Typical Performance Curves (Continued)
VIN=3V4V, VOUT=1.8V, IOUT=10mA
VIN=4V5V, VOUT=2.8V, IOUT=10mA
VIN
VIN
VOUT
VOUT
Figure 16. Line Transition Response
Figure 17. Line Transition Response
3.0
2.2
VIN=2.8V
VOUT=1.8V
CIN=1uF
COUT=1uF
2.8
Output Voltage (V)
Output Voltage (V)
2.0
VIN=3.5V
VOUT=2.5V
CIN=1uF
COUT=1uF
1.8
1.6
2.6
2.4
2.2
1.4
2.0
-40
-20
0
20
40
60
80
100
120
-40
-20
0
0
40
60
80
100
120
Temperature ( C)
Figure 18. Output Voltage vs. Temperature
Figure 19. Output Voltage vs. Temperature
55
60
VIN=2.8V
CIN=1uF
50
Quiescent Current (uA)
COUT=1uF
45
VIN=3.5V
VOUT=2.5V
CIN=1uF
COUT=1uF
55
VOUT=1.8V
50
Quiescent Current(uA)
20
0
Temperature ( C)
40
35
30
25
45
40
35
30
25
20
20
-40
-20
0
20
40
60
80
100
120
0
Temperature( C)
Figure 20. Quiescent Current vs. Temperature
FP6146-2.1-APR-2014
-40
-20
0
20
40
60
80
100
120
0
Temperature ( C)
Figure 21. Quiescent Current vs. Temperature
9
FP6146
fitipower integrated technology lnc.
85T
Typical Performance Curves (Continued)
550
450
VOUT=3.3V
400
CIN=1uF
350
COUT=1uF
0
Tj=85 C
Dropout Voltage(mV)
Dropout Voltage(mV)
500
0
Tj=25 C
300
250
0
Tj=-40 C
200
150
100
500
VOUT=2.8V
450
CIN=1uF
400
COUT=1uF
0
Tj=85 C
0
Tj=25 C
350
300
0
Tj=-40 C
250
200
150
100
50
50
0
0
0
30
60
90
120
150
180
210
240
270
0
300
30
60
90
120
150
180
210
240
270
-80
-80
Power Supply Rejection Ratio(dB)
Figure 23. VOUT=2.8V Dropout vs. Temperature
Power Supply Rejection Ratio(dB)
Figure 22. VOUT=3.3V Dropout vs. Temperature
-60
VIN=4V,VOUT=2.8V
COUT=2.2uF,No Load
-40
-20
300
Loading Current(mA)
Loading Current(mA)
-60
VIN=4V,VOUT=1.8V
COUT=2.2uF, No Load
-40
-20
0
0
1
10
100
1000
10000
100000
1000000
Frequency(Hz)
Figure 24. Power Supply Rejection Ratio vs. Frequency
FP6146-2.1-APR-2014
1
10
100
1000
10000
100000
1000000
Frequency(Hz)
Figure 25. Power Supply Rejection Ratio vs. Frequency
10
fitipower integrated technology lnc.
85T
Application Information
The FP6146 is a low dropout linear regulator that
could provide 200mA output current at dropout
voltage about 300mV. Current limit and on chip
thermal shutdown features provide protection
against any combination of overload or ambient
temperature that could exceed maximum junction
temperature.
1. Output and Input Capacitor
The FP6146 regulator is designed to be stable with a
wide range of output capacitors. The ESR of the
output capacitor affects stability. Larger value of the
output capacitor decreases the peak deviations and
improves transient response for larger current
changes.
The capacitor types (aluminum, ceramic, and
tantalum) have different characterizations such as
temperature and voltage coefficients. All ceramic
capacitors are manufactured with a variety of
dielectrics, each with different behavior across
temperature and applications. Common dielectrics
used are X5R, X7R and Y5V. It is recommended to
use 1µF to 10µF X5R or X7R dielectric ceramic
capacitors with 30m to 50m ESR range between
device outputs and ground for stability.
The
FP6146 is designed to be stable with low ESR
ceramic capacitors and higher values of capacitors
and ESR could improve output stability. The ESR of
output capacitor is very important because it
generates a zero to provide phase lead for loop
stability.
FP6146
2. Protection Features
In order to prevent overloading or thermal condition
from damaging the device, FP6146 has internal
thermal and current limiting functions designed to
protect the device. It will rapidly shut off PMOS
pass element during over-temperature condition.
3. Thermal Consideration
The power handling capability of the device will be
limited by allowable operation junction temperature
(125ºC). The power dissipated by the device will
be estimated by PD=IOUT(VIN-VOUT). The power
dissipation should be lower than the maximum
power dissipation listed in “Absolute Maximum
Ratings” section.
4. Shutdown Operation
The FP6146 is shutdown by pulling the
input low, and turned on by driving the
high.
If
pin floating, the FP6146 will shut down
because
pin has built-in a pull low resistor
(refer to Block Diagram).
There are no requirements for the ESR on the input
capacitor, but its voltage and temperature coefficient
have to be considered for device application
environment.
FP6146-2.1-APR-2014
11
FP6146
fitipower integrated technology lnc.
85T
Outline Information
SOT-23-3 Package (Unit: mm)
SYMBOLS
UNIT
DIMENSION IN MILLIMETER
MIN
MAX
A
0.90
1.45
A1
0.00
0.15
A2
0.90
1.30
B
0.30
0.50
D
2.80
3.00
E
2.60
3.00
E1
1.50
1.70
e
0.90
1.00
e1
1.80
2.00
L
0.30
0.60
Carrier Dimensions
FP6146-2.1-APR-2014
12
FP6146
fitipower integrated technology lnc.
85T
Outline Information (Continued)
SOT-23-5 Package (Unit: mm)
SYMBOLS
UNIT
DIMENSION IN MILLIMETER
MIN
MAX
A
0.90
1.45
A1
0.00
0.15
A2
0.90
1.30
B
0.30
0.50
D
2.80
3.00
E
2.60
3.00
E1
1.50
1.70
e
0.90
1.00
e1
1.80
2.00
L
0.30
0.60
Note:Followed From JEDEC MO-178-C.
Carrier Dimensions
FP6146-2.1-APR-2014
13
FP6146
fitipower integrated technology lnc.
85T
Outline Information (Continued)
TSOT-23-5 Package (Unit: mm)
SYMBOLS
UNIT
A
DIMENSION IN MILLIMETER
MIN
MAX
0.70
0.90
A1
0.00
0.10
A2
0.70
1.00
B
0.30
0.50
D
2.80
3.00
E
2.60
3.00
E1
1.50
1.70
e
0.90
1.00
e1
1.80
2.00
L
0.30
0.60
Carrier Dimensions
FP6146-2.1-APR-2014
14
FP6146
fitipower integrated technology lnc.
85T
Outline Information (Continued)
TDFN-6 (1.6mm×1.6mm) Package (Unit: mm)
SYMBOLS
UNIT
A
DIMENSION IN MILLIMETER
MIN
MAX
0.70
0.80
A1
0.00
0.05
A2
0.18
0.25
D
1.55
1.65
E
1.55
1.65
a
0.18
0.30
b
0.18
0.30
e
0.45
0.55
D1
0.95
1.05
E1
0.55
0.65
Carrier Dimensions
FP6146-2.1-APR-2014
15
FP6146
fitipower integrated technology lnc.
85T
Outline Information (Continued)
SC-82-4 Package (Unit: mm)
SYMBOLS
UNIT
A
DIMENSION IN MILLIMETER
MIN
MAX
0.80
1.10
A1
0.00
0.10
A2
0.80
1.00
B
0.15
0.40
B1
0.35
0.55
D
1.80
2.20
E
1.15
1.35
E1
1.80
2.40
e
1.20
1.40
L
0.25
0.45
Carrier Dimensions
FP6146-2.1-APR-2014
16
FP6146
fitipower integrated technology lnc.
85T
Outline Information (Continued)
SC-70-5 Package (Unit: mm)
SYMBOLS
UNIT
A
DIMENSION IN MILLIMETER
MIN
MAX
0.90
1.10
A1
0.00
0.10
A2
0.90
1.00
b
0.15
0.35
D
1.80
2.20
E1
1.80
2.40
E
1.15
1.35
e
0.55
0.75
L
0.26
0.46
Carrier Dimensions
Life Support Policy
Fitipower’s products are not authorized for use as critical components in life support devices or other medical systems.
FP6146-2.1-APR-2014
17