Preliminary Datasheet
LP3986H
600mA,Ultra-low Noise LDO Regulator
General Description
Features
The LP3986H is designed for portable applications
Ultra-Low-Noise for RF Application
2.5V- 6.5V Input Voltage Range
battery-powered systems to deliver ultra low noise and
Low Dropout : 480mV @ 600mA
low quiescent current. Regulator ground current
Ultra-Fast Response in Line/Load Transient
Current Limiting and Thermal Shutdown
with demanding performance and space requirements.
The
LP3986H
performance
is
optimized
for
increases only slightly in dropout, further prolonging
the battery life. The LP3986H also works with low-ESR
Protection
ceramic capacitors, reducing the amount of board
space necessary for power applications, critical in
hand-held wireless devices. The other features include
Applications
PMP/PDA/MP3 players
current limiting protection, and high ripple rejection
Cellular and Mobile phone
ratio. Available in the 3-lead of SOT-23 and SOT-89
RF Module
Sensor Module
ultra low dropout voltage, high output accuracy,
packages.
Order Information
Typical Application Circuit
LP3986H □ □ □ □ □
F: Pb-Free
Package Type
VIN
B3: SOT23-3
LP3986H
VIN
X3: SOT-89
Output Type
Vout
OUT
GND
2.2uF
2.2uF
12: 1.2V
15: 1.5V
18: 1.8V
25: 2.5V
28: 2.8V
30: 3.0V
Device
33: 3.3V
50: 5.0V
LP3986H-01
Marking Information
Oct.-2013
Package
Shipping
LP3986HB3F
SOT23-3
3K/REEL
LP3986HX3F
SOT89
1K/REEL
Email: marketing@lowpowersemi.com
Marking
www.lowpowersemi.com
Page 1 of 6
Preliminary Datasheet
LP3986H
Functional Pin Description
Package Type
Pin Configurations
3
SOT23-3 / SOT-89
SOT23-3
SOT89-3
TOP VIEW
TOP VIEW
1
2
1
2
3
Pin Description
Pin
Name
Description
1
GND
Ground.
2
3
VIN
Power Input Pin.
3
2
OUT
Output Pin.
SOT-89
SOT23-5
1
Function Diagram
LP3986H-01
Oct.-2013
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 2 of 6
Preliminary Datasheet
LP3986H
Absolute Maximum Ratings
Supply Input Voltage ----------------------------------------------------------------------------------------------------- 7V
Power Dissipation, PD @ TA = 25°C
SOT-23 ----------------------------------------------------------------------------------------------------------------- 450mW
SOT-89 ----------------------------------------------------------------------------------------------------------------- 700mW
Package Thermal Resistance
SOT-23, θJA -------------------------------------------------------------------------------------------------------- 250°C/W
SOT-89, θJA -------------------------------------------------------------------------------------------------------- 165°C/W
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------ 260°C
Storage Temperature Range -------------------------------------------------------------------------- −65°C to 165°C
ESD Susceptibility
HBM (Human Body Mode) --------------------------------------------------------------------------------------------- 2kV
MM(Machine-Mode) --------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions
Supply Input Voltage ------------------------------------------------------------------------------------------- 2.5V to 6V
Operation Junction Temperature Range ------------------------------------------------------------ -40°C to 125°C
Operation Ambient Temperature Range ------------------------------------------------------------- -40°C to 85°C
Electrical Characteristics
(VIN = VOUT + 1V, CIN = COUT = 2.2µF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ.
Max
Units
△VOUT/VOUT
IOUT = 1mA
−3
--
+3
%
Current Limit
ILIM
RLOAD = 1Ω
650
Quiescent Current
IQ
IOUT = 0mA
90
μA
Dropout Voltage
VDROP
IOUT = 600mA, VOUT > 2.8V
480
mV
Line Regulation
△VOUT/VOUT
Load Regulation
△VLOAD
Output Voltage
Accuracy
Thermal Shutdown
Temperature
VIN = (VOUT + 1V) to 5.5V,
IOUT = 1mA
1mA < IOUT < 300mA
TSD
Thermal Shutdown
Hysteresis
LP3986H-01
Oct.-2013
mA
Email: marketing@lowpowersemi.com
0.2
%
2
%
150
°C
20
°C
www.lowpowersemi.com
Page 3 of 6
Preliminary Datasheet
LP3986H
Typical Operating Characteristics
LP3986H-01
Oct.-2013
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 4 of 6
Preliminary Datasheet
LP3986H
Packaging Information
SOT-89-3
LP3986H-01
Oct.-2013
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 5 of 6
Preliminary Datasheet
LP3986H
SOT23-3
LP3986H-01
Oct.-2013
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 6 of 6
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