PL0301
300mA, Ultra-Low Noise, Ultra-Fast
CMOS LDO Regulator
FEATURES
DESCRIPTION
Guaranteed 300mA output
High output initial voltage accuracy: ±1%
Ultra low output noise: 138µV
RMS
Low ground current: 105µA
Very low dropout: 160mV @300mA
Zero shutdown supply current
TTL-logic-controlled enable input
Thermal and current limit protections
Low ESR capacitor compatibility to achieve
Ultra low droop load transient response
Ultra fast line transient response
Low profile 5-lead SOT25 and 3-lead SOT23
package
Fixed options 1.5V, 1.8V, 2.5V, 2.8V, 3.0V
and 3.3V
Cellular and cordless phones
Wireless LAN cards
Palmtop computers
Personal communication equipment
Pen drives
Bluetooth devices
The PL0301 is a CMOS low dropout linear regulator
with ultra-low-noise output, very low dropout
voltage and very low ground current.
The PL0301 operates from a 2.5V to 5.5V input
voltage range and delivers up to 300mA, with low
dropout of 160 mV at 300mA. The other features of
PL0301 include short-circuit protection and thermal-
shutdown protection.
The PL0301 is designed especially for battery-
powered portable devices. Its low noise feature
makes PL0301 ideal for noise-sensitive personal
communication applications. Other key application
areas for PL0301 also include palmtop computers,
PCMCIA cards and WLAN cards.
The PL0301 is available in small 5-lead SOT25
package and 3-lead SOT23 with fixed output
voltage versions.
APPLICATIONS
TYPICAL APPLICATION CIRCUIT
July 2007
www.picsemi.com
© 2007 Power IC. All Rights Reserved.
1
PL0301
PIN CONFIGURATION
PIN DESCRIPTION
Name
IN
GND
EN
BYP
OUT
Pin NO.
SOT-25 SOT-23
Type
Supply
Ground
Function
1
2
3
4
5
3
1
2
Supply voltage. 2.5V ~ 5.5V.
Ground pin
Enable/Shutdown. CMOS compatible input. Logic ‘H’ : enable, logic ‘L’
Logic input
: shutdown.
Reference voltage bypass pin. Connect 0.01uF
≦
C
BYP
≦
0.1uF to GND
Bypass
to reduce output noise. May be left open.
Analog
Regulator Output.
output
ORDERING INFORMATION
Part Number
Output Voltage
Marking
Package
PL0301 – 15VZ
1.5
PL0301 – 15UZ
1.5
PL0301 – 18VZ
1.8
PL0301 – 18UZ
1.8
PL0301 – 25VZ
2.5
PL0301 – 25UZ
2.5
PL0301 – 27VZ
2.7
PL0301 – 27UZ
2.7
PL0301 – 28VZ
2.8
PL0301 – 30VZ
3.0
PL0301 – 30UZ
3.0
PL0301 – 33VZ
3.3
PL0301 – 33UZ
3.3
Note 1: Contact the factory for other output voltages that
DBAMW
DBBMW
DBCMW
DBDMW
DBEMW
DBFMW
DBGMW
DBHMW
DBIMW
DBKMW
DBLMW
DBMMW
DBNMW
are not in the above table
SOT-23
SOT-25
SOT-23
SOT-25
SOT-23
SOT-25
SOT-23
SOT-25
SOT-23
SOT-23
SOT-25
SOT-23
SOT-25
July 2007
www.picsemi.com
© 2007 Power IC. All Rights Reserved.
2
PL0301
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
EN
PB
DB
T
STG
R
θJA
T
J,MAX
TB
LB
ESD
Parameter
DC Supply Voltage at Pin 1
Enable Input Voltage at Pin 2
Continuous Power Dissipation
Storage Temperature Range
Thermal Resistance, Junction-To-Air
Operating Junction Temperature
Lead Temperature (Soldering, 5sec)
ESD Capability, HBM model
Value
-0.3 to +6.0
-0.3 to +6.0
Internally limited
-65 to +150
235
-40 to +125
260
2
Unit
V
V
W
℃
℃/W
℃
℃
kV
RECOMMENDED OPERATING CONDITIONS
Symbol
V
IN
V
EN
TB
AB
Parameter
DC Supply Voltage at Pin 1
Enable Input Voltage at Pin 2
Operating Ambient Temperature
Value
+2.5 to 5.5
0 to V
IN
-40 to +85
Unit
V
V
℃
July 2007
www.picsemi.com
© 2007 Power IC. All Rights Reserved.
4
PL0301
ELECTRICAL CHARACTERISTICS
(V
IN
=V
OUT(NOMINAL)
+1V or 2.5V (whichever is greater), V
EN
=V
IN,
C
IN
=C
OUT
=1µF, I
O
=1mA,
T
A
=25°C,
unless
otherwise specified)
Symbol
V
IN
ΔV
OUT
ΔV
LOAD
ΔV
line
V
DP
IB
OB
ILIM
IB
QB
IB
GB
PSRR
PSRR
e
NO
Parameter
Supply Voltage
Output Voltage Accuracy
Load Regulation
Line Regulation
dV
OUT
/( dV
IN
*V
OUT(NOMINAL)
)*100%
Dropout Voltage (Note 1)
Test Conditions
Min.
2.5
-1.0
0.4
0.015
160
56
300
420
680
0.5
105
62
60
138
165
20
1.2
0.4
-1
V
EN
= 0 to 5.5V, C
BYP
=10nF
C
OUT
=1uF
135
400
1
Typ.
Max.
5.5
1.0
0.5
0.05
220
100
Unit
V
%
%
%/V
mV
mV
mA
RMS
mA
µA
µA
dB
dB
µV
RMS
°C
°C
V
V
µA
µs
Ω
I
O
= 1mA
I
O
=1mA to 300mA
V
IN
=V
OUT(NOMINAL)
+0.1V (or
2.5V, whichever is greater) to
5.5V, I
O
=1mA
I
LOAD
= 300mA
I
LOAD
= 100mA
Maximum Output Current
Continuous
Current Limit/Output Current
V
IN
-V
OUT
=1.3V
Standby Current
V
EN
= 0V
Ground pin current
Ripple Rejection,
I
OUT
= 50mA,
Output voltage noise
Thermal Shutdown
Temperature
Thermal Shutdown Hysteresis
Logic Input High Voltage (EN)
Logic Input Low Voltage
(EN\)
Logic Input Current (SHDN\)
Shutdown exit delay
Shutdown discharge
resistance
I
LOAD
=1mA
f = 100Hz, Cout= 1µF,
C
BYP
=10nF
f = 10KHz, Cout= 1µF,
C
BYP
=10nF
C
OUT
= 1µF, C
BYP
= 10nF,
F = 10Hz to 100K Hz
(Vp-p/2/√2)
V
IH
V
IL
I
EN
July 2007
www.picsemi.com
© 2007 Power IC. All Rights Reserved.
5
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