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fitipower integrated technology lnc.
FP6166
600mA LowLDNOoisweithHSighhutPdSo8Rw5RnT
Description
The FP6166 is a low dropout, low noise, high PSRR and very low quiescent current positive linear regulator. The FP6166 can supply 600mA output current with low dropout voltage at about 890mV 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 FP6166 that consumes less than 0.1µA during shutdown mode.
The FP6166 regulator is able to operate with output capacitors as small as 1µF for stability. Other than the current limit protection, FP6166 also offers the on chip thermal shutdown feature providing protection against overload or any condition when the ambient temperature exceeds the maximum junction temperature.
The FP6166 offers high precision output voltage of 2%. It is housed in low-profile, space-saving SOT-23-5 and SOP-8 packages.
Pin Assignments
S5 Package (SOT-23-5)
VOUT
ADJ
54 123
VIN GND SHDN
SO Package (SOP-8)
SHDN VIN
VOUT ADJ
1 2 3 4
8 GND 7 GND 6 GND 5 GND
Features
Low Dropout Voltage of 890mV at 600mA Low 30μVrms Output Noise Guaranteed 600mA Output Current Adjustable Mode Output Voltage Range is from
1V to 5.5V-Vdrop High Power Supply Rejection Ratio of 70dB at
10kHz Very Low Quiescent Current at 45µA Max. 2% Output Voltage Accuracy Fast Response in Line/Load Transient Thermal Shutdown Protection Current Limit Protection Low-ESR Ceramic Capacitor for Output Stability Miniature Packages: SOT-23-5 and SOP-8 RoHS Compliant
Applications
Mobile Phone Notebook, Sub-Notebook and Tablet Computer DSC Portable Information Appliance Battery Power System
Ordering Information
FP6166□□□
TR: Tape/Reel
C: Green
Package Type S5: SOT-23-5 SO: SOP-8
SOT-23-5 Marking
Part Number
Product Code
FP6166S5CTR
C7G
Figure 1. Pin Assignment of FP6166
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Typical Application Circuit
FP6166
85T
VIN
CIN
2.2µF
VSHDN
VIN VOUT
FP6166
ADJ
SHDN GND
R1 R2
VOUT
COUT 1µF
Figure 2. Typical Application Circuit of FP6166
Note 1:To prevent oscillation, it is recommended to use minimum 2.2µF/1µF X7R or X5R dielectric capacitors if ceramics are used as input/output capacitors.
Functional Pin Description
Pin Name VIN
VOUT ADJ
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 2.2µ F to 10µ F is sufficient. The output supplies power to loads. The output capacitor is required to prevent output voltage from oscillation. The FP6166 is stable with a 1µ F or greater output capacitor. 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.
Voltage Feedback Input Pin. Connect ADJ and VOUT with a resistive voltage divider.
GND
Common Ground Pin
Pull this pin high to enable IC, and pull this pin low to shutdown IC. Keeping this pin floating will shut down IC due to the built-in pull-low resistor.
FP6166-0.4-OCT-2012
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FP6166
Block Diagram
85T
VIN
RSEN
PMOS
VOUT
Current Limit
SHDN
Power Shutdown
5MΩ
Thermal Shutdown
Error Amp
_+
_
Vref
+ Output Mode Comparator
+ _ 0.166V
ADJ
R1
R2
GND
Figure 3. Block Diagram of FP6166
Absolute Maximum Ratings
● VIN,
, ADJ to GND --------------------------------------------------------------------------------------- +6V
● Package Thermal Resistance (θJA)
SOT-23-5 ------------------------------------------------------------------------------------------------- +250ºC/W
SOP-8 ----------------------------------------------------------------------------------------------------- +110ºC/W
● Maximum Junction Temperature (TJ) ------------------------------------------------------------------------ +150ºC ● Storage Temperature Range (TSTG) -------------------------------------------------------------------------- -65ºC to +150ºC ● Lead Temperature (Soldering, 10 sec.) (TLEAD) ------------------------------------------------------------ +260ºC Note 2:Stresses 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
FP6166-0.4-OCT-2012
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FP6166
Electrical Characteristics
85T
(VIN=VOUT+1V,
pin connected to VIN, CIN=2.2µF, COUT=1µF, TA=25ºC, unless otherwise specified)
Parameter
Symbol
Conditions
Min Typ Max
Unit
Current Limit Short Circuit Current Quiescent Current Standby Current Reference Voltage Reference Voltage Ac.