PJ9500 Series
Low Dropout Regulators
Description
PJ9500 Series is high accuracy,very low quiescent current,low-dropout linear regulator able to provide 500mA load
current.
PJ9500 Series features very fast response against line voltage transient and load current transient, and ensures no
overshoot voltage during the LDO start up and short circuit recovery.
PJ9500 Series integrated short circuit protection, current limiting protection and thermal protection function. By putting
the EN pin down to turn on shuntdown mode.
Features
⚫ Wide Input Voltage Range: 1.8V~6V
⚫ Maximum Output Current: 500mA
⚫ Standard Fixed Output Voltage Options: 1.2V,1.8V,2.5V,2.8V,3V,3.3V,3.6V,etc
⚫ Low Quiescent Current: 800nA
⚫ PSRR=60dB@1KHz
⚫ Low Dropout: 130mV @ 100mA
⚫ Low Output Voltage Accuracy: ±2%
⚫ Short Circuit Protection
⚫ Current Limiting Protection
⚫ Thermal Shutdown Protection
⚫ Available Packages: SOT-23, SOT-23-3, SOT-89, SOT-23-5,DFN1x1-4L and SOT-89-5
Applications
⚫ Battery-Powered Equipment
⚫ Smoke Detector and Sensor
⚫ Micro Controller Applications
Typical Application Circuit
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PJ9500 Series
Low Dropout Regulators
Pin Distribution
SOT-23
SOT-89
SOT-23-3
3.VIN
2.VIN
3.VIN
1.GND
2.VOUT
1.GND 2.VIN 3.VOUT
SOT-23-5
4. NC
5. VOUT
1.GND
SOT-89-5
DFN1x1-4L
4. NC
5. VOUT
4.VIN
3.EN
2.VOUT
GND
2.GND
1.VIN
3.EN
2.GND
1.VOUT
(Bottom View)
1.VIN
2.GND
3.EN
Functional Pin Description
Pin Name
Pin Function
VIN
Power Input Voltage
GND
Ground
EN
Chip Enable (Active High). Note that this pin is high impedance
NC
NO Connected
VOUT
Output Voltage
Ordering Information
PJ9500
Package Type
SA:SOT-23 SQ:SOT-89
SC:SOT-23-3 SE:SOT-23-5
DE:DFN1x1-4L SR: SOT-89-5
Output Voltage
12 : 1.2V 18 : 1.8V 25 : 2.5V
28 : 2.8V 30 : 3.0V 33 : 3.3V
36 : 3.6V
Output current tap
M : 500mA
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PJ9500 Series
Low Dropout Regulators
Ordering Information Continue
Orderable
Package
Device
Reel
Package Qty
(inch)
(PCS)
Eco Plan Note
MSL Level
Marking Code
PJ9500M12SA
PJ9500M18SA
PJ9500M25SA
SOT-23
PJ9500M28SA
7
3000
RoHS & Green
MSL1
PJ9500M30SA
9500
-XX
XX:Output Voltage
e.g. 3.0:3.0V
PJ9500M33SA
PJ9500M36SA
PJ9500M12SQ
PJ9500M18SQ
PJ9500M25SQ
SOT-89
PJ9500M28SQ
7/13
1000/3000
RoHS & Green
MSL1
9500
-XX
PJ9500M30SQ
XX:Output Voltage
PJ9500M33SQ
e.g. 3.0:3.0V
PJ9500M36SQ
PJ9500M12SC
PJ9500M18SC
PJ9500M25SC
PJ9500M28SC
SOT-23-3
7
3000
RoHS & Green
MSL3
9500
-XX
PJ9500M30SC
PJ9500M33SC
XX:Output Voltage
e.g. 3.0:3.0V
PJ9500M36SC
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PJ9500 Series
Low Dropout Regulators
PJ9500M12SE
PJ9500M18SE
PJ9500M25SE
PJ9500M28SE
SOT-23-5
7
3000
RoHS & Green
MSL3
9500
-XX
PJ9500M30SE
XX:Output Voltage
e.g. 3.0:3.0V
PJ9500M33SE
PJ9500M36SE
PJ9500M12DE
PJ9500M18DE
DXX
PJ9500M25DE
PJ9500M28DE
DFN1x1-4L
7
1000
RoHS & Green
MSL1
PJ9500M30DE
PJ9500M33DE
D:Product Code
e.g. D: PJ9500 Series
XX:Output Voltage
e.g. 30:30V
PJ9500M36DE
PJ9500M12SR
PJ9500M18SR
PJ9500M25SR
PJ9500M28SR
SOT-89-5
7/13
1000/3000
RoHS & Green
MSL1
9500
-XX
PJ9500M30SR
PJ9500M33SR
XX:Output Voltage
e.g. 3.0:3.0V
PJ9500M36SR
Note:
1. RoHS:PJ defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS
substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials.
Green:PJ defines "Green" to mean Halogen-Free and Antimony-Free.
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PJ9500 Series
Low Dropout Regulators
Function Block Diagram
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PJ9500 Series
Low Dropout Regulators
Absolute Maximum Ratings Note1
Ratings at 25℃ ambient temperature unless otherwise specified.
Parameter
Value
Unit
VIN
-0.3 ~ 6
V
VEN
-0.3 ~ 6
V
-0.3 ~ 5
V
500
mA
SOT-23
300
mW
SOT-89
400
mW
SOT-23-3
250
mW
SOT-23-5
250
mW
DFN1x1-4L
250
mW
SOT-89-5
400
mW
SOT-23
330
°C/W
SOT-89
250
°C/W
SOT-23-3
400
°C/W
SOT-23-5
400
°C/W
DFN1x1-4L
400
°C/W
SOT-89-5
250
°C/W
Operating Ambient Temperature
-40 ~ +125
°C
Storage temperature range
-40 ~ +150
°C
Lead Temperature
300°C,10S
--
HBM
4
KV
CDM
200
V
VIN,VEN to GND Voltage
VOUT to VIN Voltage
Maximum Load Current
Power Dissipation
Thermal Resistance,Junction-to-Ambient
ESD Voltage
Note1: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect.
Recommended Operating Conditions
Parameter
Supply Voltage
Maximum Output Current
Operating Ambient Temperature
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Value
Unit
1.8~6
V
500
mA
-40 ~ +125
°C
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PJ9500 Series
Low Dropout Regulators
Electrical Characteristics
VIN=VOUT+1V, CIN=1µF, COUT=1µF, TA=25℃ , unless otherwise noted.)
Parameter
Input Voltage
Test Conditions
VIN
Output Voltage Accuracy
Quiescent Current
Maximum Output Current
Dropout
Symbol
Voltage Note
Min.
Typ.
Max.
Unit
1.8
--
6
V
∆VOUT
VIN=5V, IOUT=10mA
-2
--
+2
%
IQ
VIN=5.0V, IOUT=0A
--
800
--
nA
--
500
--
mA
VIN=0.98*VOUT, IOUT=100mA
VOUT≥2.8V
--
120
--
mV
VIN=0.98*VOUT, IOUT=100mA
1.8≤VOUT<2.8V
--
160
--
mV
VIN=0.98*VOUT, IOUT=100mA
VOUT=1.5V
--
190
--
mV
VIN=0.98*VOUT, IOUT=100mA
VOUT=1.2V
--
280
--
mV
IOUT_Max
VDROP
Line Regulation
∆VLINE
VIN=(VOUT+2V)~7V, IOUT=1mA
--
1
3
mV
Load Regulation
∆VLOAD
VOUT=4V, IOUT=1~200mA
--
0.1
0.2
mV/mA
Short Circuit Current
ISHORT
--
120
150
mA
--
700
--
mA
Current Limit
ILIMIT
VEN=VIN
VOUT Short to GND
VIN=VOUT+1V
EN Input
Logic Low
VIL
--
--
0.9
V
Threshold
Logic High
VIH
1.2
--
--
V
--
60
--
dB
--
66
Shutdown, Temp increasing
--
129
--
°C
Reset, Temp decreasing
--
105
--
°C
Power Supply Rejection Rate
PSRR
VIN=5V, IOUT=10mA,f=1 KHz
VIN= 5V, IOUT= 300mA,
Output Noise Voltage
eN
f=10Hz to100KHz,
--
μVRMS
(VOUT=3.3V), COUT=1μF
Thermal Shutdown Temperature
Thermal Reset Temperature
TSHDN
Note:The dropout voltage difference is the voltage difference between the input and output, where the output voltage is
2% lower than its nominal value.
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PJ9500 Series
Low Dropout Regulators
Typical Electrical Curves
TA=25°C, (unless otherwise noted)
Line transient
Line transient
VIN=5V to 3.5V
IOUT=1mA
VIN=3.5V to 5V
IOUT=1mA
Load transient
Load transient
VIN=4V
IOUT=100mA to 0mA
VIN=4V
IOUT=0mA to 100mA
Power-on waveform
Power-off waveform
2V/div
2V/div
VIN
2V/div
VIN
VOUT
VOUT
IOUT
VOUT=3.3V,VIN=5V,IOUT=0mA
Time(200μs/div)
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2V/div
100mA/div
VOUT=3.3V,VIN=5V,IOUT=100mA
Time(400μs/div)
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PSRR(dB)
PJ9500 Series
Low Dropout Regulators
Frequency(Hz)
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PJ9500 Series
Low Dropout Regulators
Functional Description
Input Capacitor
A 1μF ceramic capacitor is recommended to connect between VIN and GND pins to decouple input power supply glitch
and noise. The amount of the capacitance may be increased without limit. This input capacitor must be located as close as
possible to the device to assure input stability and less noise. For PCB layout, a wide copper trace is required for both VIN
and GND. The input capacitor should be at least equal to, or greater than, the output capacitor for good load transient
performance。
Output Capacitor
An output capacitor is required for the stability of the LDO. The recommended output capacitance is from 1μF to 10μF,
Equivalent Series Resistance (ESR) is from 5mΩ to 500mΩ, and temperature characteristics are X7R or X5R. Higher
capacitance values help to improve load/line transient response. The output capacitance may be increased to keep low
undershoot/overshoot. Place output capacitor as close as possible to OUT and GND pins.
ON/OFF Input Operation
The PJ9500 EN pin is internally held low by a 1-MΩ resistor to GND. The PJ9500 is turned on by setting the EN pin
higher than VIH threshold, and is turned off by pulling it lower than VIL threshold. If this feature is not used, the EN pin should
be tied to IN pin to keep the regulator output on at all time.
Low Quiescent Current
Cellular phone baseband internal digital circuits typically operate all the time. That requires LDO stays on at all times.
However, in the standby mode, the microprocessor consumes only around 100~300μA. Since the phone stays in standby for
the longest percentage of time, using a 0.8μA quiescent current LDO, instead of 100μA, saves 99.2μA and can substantially
extends the battery standby time.
The PJ9500, consuming only 0.8μA quiescent current, provides great power saving in portable and low power applications.
Current Limit Protection
When output current at the OUT pin is higher than current limit threshold or the OUT pin is short-circuiting to GND, the
current limit protection will be triggered and clamp the output current to a pre-set level to prevent over-current and to protect
the regulator from damage due to overheating.
Thermal Overload Protection
The 9500 has internal thermal protection. When the temperature is too high, such as a short circuit in the output pins
or a device with a very large load current and a large voltage drop, the internal thermal protection circuit will be triggered,
which will shut down the power supply MOSFET and prevent LDO damage. Once the excessive thermal conditions are
eliminated and the temperature of the device drops, the thermal protection circuit will restore control of the power
MOSFET and allow the LDO device to enter normal operation
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PJ9500 Series
Low Dropout Regulators
Package Outline
SOT-23
Dimensions in mm
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PJ9500 Series
Low Dropout Regulators
Package Outline
SOT-89
Dimensions in mm
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PJ9500 Series
Low Dropout Regulators
Package Outline
SOT-23-3
Dimensions in mm
1.6
2.8
±0.1
10
0.127 +0.05/-0.02
±0.1
±0.1
2.92
12
R0.15MAX
0.95±0.1
0.35±0.05
R0.15MAX
0.06
12
± 0.05
0.65
±0.1
1.1
±0.1
10
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PJ9500 Series
Low Dropout Regulators
Package Outline
SOT-23-5
Dimensions in mm
2.92
±0.1
1.6
2.8
±0.1
± 0.1
10
0.127 +0.05/-0.02
1.9±0.1
12
R0.15MAX
0.95 ±0.1
0.35±0.05
R0.15MAX
0.06
12
± 0.05
0.65
±0.1
1.1
±0.1
10
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PJ9500 Series
Low Dropout Regulators
Package Outline
DFN1x1-4L
Dimensions in mm
0.625 BSC
1±0.05
0.25±0.05
1±0.05
05
0.
0.
5±
0.
05
5±
0.
PIN1
PIN 1
0.225±0.05
TOP VIEW
0.125 BSC
+0.05
0.5±0.05
BOTTOM VIEW
SIDE VIEW
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PJ9500 Series
Low Dropout Regulators
Package Outline
SOT-89-5
Dimensions in mm
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