Low IQ, Low Dropout 150mA Fixed Voltage Regulator
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw1
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Features General Description
The APL5151/2/3/4 is micropower, low noise, low drop-
out linear regulator. Operate from 3V to 6V input volt-
age and deliver up to 150mA. Typical output noise is
just 60uVRMS with the addition of an external 0.33uF
bypass capacitor in BP pin and typical dropout volt-
age is only 220mV at 150mA loading. Designed for
use in battery-powered system, the low 50uA quies-
cent current makes it an ideal choice. Design with an
internal P-channel MOSFET pass transistor, the
APL5151/2/3/4 maintains a low supply current, inde-
pendent of the load current and dropout voltage. Other
features include reverse current protection , thermal-
shutdown protection , current limit protection to en-
sure specified output current and controlled short-cir-
cuit current . The APL5151/2/3/4 regulators come in a
miniature SOT-23-5 package.
Applications
• Notebook Computer
• PDA or Portable Equipments
• Noise-Sensitive Instrumentation Systems
••
••
• Low Noise : 60uVRMS (100Hz to 100kHz)
••
••
• Low Quiescent Current : 50uA
••
••
• Low Dropout Voltage : 300mV
(VOUT(Nominal)=3.0V Version @150mA)
••
••
• Very low Shutdown Current : < 0.5uA
••
••
• Fixed Output Voltage : 1.3V,1.4V,1.5V,1.6V,
1.7V,1.8V,1.9V, 2.0V,2.1V,2.2V,2.3V,2.4V,
2.5V,2.6V,2.7V, 2.8V, 2.85V,2.9V,3.0V,3.1V,
3.2V,3.3V,3.4V, 3.5V, 5.0V.
••
••
• Stable with 1uF Output Capacitor
••
••
• Stable with Aluminum , Tantalum or Ceramic
Capacitors .
••
••
• Reverse Current Protection
••
••
• No Protection Diodes Needed
••
••
• Built in Thermal Protection
••
••
• Built in Current Limit Protection
••
••
• Controlled Short Circuit Current : 50mA
••
••
• Fast transient Response
••
••
• Short Setting Time
••
••
• SOT-23-5 Package
Pin Configuration
VIN
GND
BP
VOUT
1
2
3
5
SHDN 4
APL5151
VIN
GND
BP
VOUT
1
2
3
5
SHDN
4
APL5152
VIN
GND
BP
VOUT 1
2
3
5
SHDN
4
APL5153
VIN
GND
BP VOUT
1
2
3
5
SHDN
4
APL5154
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw2
Product
Name Marking Product
Name Marking Product
Name Marking Product
Name Marking
APL5151-13 1517X APL5152-13 1527X APL5153-13 1537X APL5154-13 1547X
APL5151-14 1518X APL5152-14 1528X APL5153-14 1538X APL5154-14 1548X
APL5151-15 1519X APL5152-15 1529X APL5153-15 1539X APL5154-15 1549X
APL5151-16 151AX APL5152-16 152AX APL5153-16 153AX APL5154-16 154AX
APL5151-17 151BX APL5152-17 152BX APL5153-17 153BX APL5154-17 154BX
APL5151-18 151CX APL5152-18 152CX APL5153-18 153CX APL5154-18 154CX
APL5151-19 151DX APL5152-19 152DX APL5153-19 153DX APL5154-19 154DX
APL5151-20 151EX APL5152-20 152EX APL5153-20 153EX APL5154-20 154EX
APL5151-21 151FX APL5152-21 152FX APL5153-21 153FX APL5154-21 154FX
APL5151-22 151GX APL5152-22 152GX APL5153-22 153GX APL5154-22 154GX
APL5151-23 151HX APL5152-23 152HX APL5153-23 153HX APL5154-23 154HX
APL5151-24 151IX APL5152-24 152IX APL5153-24 153IX APL5154-24 154IX
APL5151-25 151JX APL5152-25 152JX APL5153-25 153JX APL5154-25 154JX
APL5151-26 151KX APL5152-26 152KX APL5153-26 153KX APL5154-26 154KX
APL5151-27 151LX APL5152-27 152LX APL5153-27 153LX APL5154-27 154LX
APL5151-28 151MX APL5152-28 152MX APL5153-28 153MX APL5154-28 154MX
APL5151-285 1512X APL5152-285 1522X APL5153-285 1532X APL5154-285 1542X
APL5151-29 151NX APL5152-29 152NX APL5153-29 153NX APL5154-29 154NX
APL5151-30 151OX APL5152-30 152OX APL5153-30 153OX APL5154-30 154OX
APL5151-31 151PX APL5152-31 152PX APL5153-31 153PX APL5154-31 154PX
APL5151-32 151QX APL5152-32 152QX APL5153-32 153QX APL5154-32 154QX
APL5151-33 151RX APL5152-33 152RX APL5153-33 153RX APL5154-33 154RX
APL5151-34 151SX APL5152-34 152SX APL5153-34 153SX APL5154-34 154SX
APL5151-35 151TX APL5152-35 152TX APL5153-35 153TX APL5154-35 154TX
APL5151-48 151XX APL5152-48 152XX APL5153-48 153XX APL5154-48 154XX
APL5151-49 151YX APL5152-49 152YX APL5153-49 153YX APL5154-49 154YX
APL5151-50 151ZX APL5152-50 152ZX APL5153-50 153ZX APL5154-50 154ZX
Ordering Information
Package Code
B : SOT-23-5
Temp. Range
C : 0 to 70 C I : -40 to 85 C
Handling Code
TR : Tape & Reel
Voltage Code :
13 : 1.3V ~ 50 : 5.0V(refer below for detailed)
APL5151/2/3/4 -
Handling Code
Temp. Range
Package Code
Voltage Code
°°
Marking Information
The last character “X” in the marking is for data code.
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw3
PIN
No. Name I/O Description
1V
IN I Supply voltage input.
2GND Ground pins of the circuitry, and all ground pins must be soldered to
PCB with proper power dissipation.
3 SHDN I Shutdown control pin, low = off , high = normal .
4 BP O Bypass signal pin in fixed output type device
5V
OUT O Output pin of the regulator.
Pin Description
Absolute Maximum Ratings
Symbol Parameter Rating Unit
VIN, VOUT Input Voltage or Out Voltage 6 V
SHDN Shutdown Control Pin 6V
RTH,JA Thermal Resistance – Junction to Ambient 357 °C/W
PDPower Dissipation Internally Limited W
TJOperating Junction Temperature °C
Control Section 0 to 125
Power Transistor 0 to 150
TSTG Storage Temperature Range -65 to +150 °C
TLLead Temperature (Soldering, 10 second) 260 °C
Electrical Characteristics
Unless otherwise noted these specifications apply over full temperature , VIN=3.6V, CIN=COUT=1uF, SHDN=VIN,
TJ=0 to 125°C . Typical values refer to TJ=25°C .
APL5151/2/3/4
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VIN Input Voltage 2.7 6 V
VOUT Output Voltage VOUT+1.0V< VCC<6.0V, 0mA< IOUT < IMAX VOUT -2%VOUT VOUT +2%V
ILIMIT Circuit Current Limit VIN=VOUT+1V 250 300 350 mA
ISHORT Short Current VOUT=0V 405060mA
IOUT Load Current 150 mA
REGLINE Line Regulation VOUT+0.5V< VCC<6.0V, 0mA< IOUT < IMAX 410mV
REGLOAD Load Regulation VIN =VOUT+1.0V, 0mA< IOUT < IMAX 16mV
Load Transient VIN= VOUT+1V , IOUT=1mA-150mA in 1µs70 150 mV
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw4
Electrical Characteristics (Cont.)
Unless otherwise noted these specifications apply over full temperature , VIN=3.6V, CIN=COUT=1uF, SHDN=VIN,
TJ=0 to 125°C . Typical values refer to TJ=25°C .
APL5151/2/3/4
Symbol Parameter Test Conditions Min. Typ. Max. Unit
PSRR Ripple Rejection F≤1kHz, 1Vpp at VIN = VOUT+1.0V
CBP=0.1µF, COUT = 1µF45 55 dB
1.3V≤VOUT<1.5V 1.2 1.4
1.5V≤VOUT<2.0 1 1.2
2.0V≤VOUT<2.5 0.7 0.8
2.5V≤VOUT<3 0.3 0.4
VDROP Dropout Voltage(Note) IOUT =150mA
3V≤VOUT≤50.20.3
V
No load 50 80
IQQuiescent Current
IOUT=150mA 135 170
µA
Shutdown Supply
Current
Shutdown = low
IOUT=0, VCC =6.0V 0.01 1 µA
100Hz<f<100kHz, typical load,
CBP=0.1µF, COUT = 1µF80
Noise 100Hz<f<100kHz, typical load,
CBP=0.33µF, COUT = 1µF60
µVrms
CBP=0.1µF,COUT=1µF, no load 4
Shutdown Recovery
Delay CBP=0.33µF,COUT=1µF, no load 13.2 ms
OTS Over Temperature
Shutdown 150 °C
Over Temperature
Shutdown Hysteresis Hysteresis 10 °C
TC
Output Voltage
Temperature
Coefficient
50 ppm/°C
COUT Output Capacitor 0.8 1.0 2.6 µF
ESR 0.02 0.1 1 Ohm
Shutdown Input
Threshold VOUT+1.0V< VIN <6.0V 0.4 1.6 2.5 V
ISHDN
Shutdown Input Bias
Current VSHDN =VIN 0.01 100 nA
Input Reverse Leakage
Current VOUT-VIN=0.1V 0.1 0.5 µA
Reverse Protection
Threshold 11 50 mV
Note: Dropout voltage definition : VIN-VOUT when VOUT is 2% below the value of VOUT for VIN = VOUT + 0.5V
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw5
Application Circuit
BP
VOUT
VIN
GND
SHDN
VOUT
CIN
1µF
off
on
APL5151/2/3/4
INPUT
3V to 6V
0.33µFCBP
COUT
1µF
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw6
Typical Characteristics
0
100
200
300
400
500
600
3.8 4.3 4.8 5.3 5.8 6.3
Current Limit vs. Input Voltage
Input Voltage (V)
Current Limit (mA)
0
20
40
60
80
100
120
140
160
0 50 100 150
Ground Pin Current vs. Load Current
Ground Pin Current vs. Load Current (uA)
Load Current (mA)
0
20
40
60
80
100
120
140
160
0123456
Ground Pin Current vs. Input Voltage
Input Voltage (V)
Ground Pin Current vs. Load Current (uA)
IOUT=50mA
NO LOAD
0
0.5
1
1.5
2
2.5
3
3.5
0123456
Input Voltage vs. Output Voltage
Input Voltage (V)
Output Voltage (V)
APL5151-33 APL5151-33
APL5151-33
APL5151-33
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw7
0
50
100
150
200
0306090120150
Typical Characteristics (Cont.)
1
1.1
1.2
1.3
1.4
1.5
1.6
3.544.555.56
SHDN Threshold Voltage vs. Input Voltage
SHDN Threshold Voltage (V)
Input Voltage (V)
-80
+0
-70
-60
-50
-40
-30
-20
-10
10 200k20 50 100 200 500 1k 2k 5k 10k 20k 50k
PSRR vs. Frequency
Frequency (HZ)
PSRR (dB)
VIN=4.3V
IOUT =50mA
COUT=1uF
CBP=0.1uF
APL5151-33 APL5151-33
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0123456
Reverse Leakage Current vs. Output Voltage
Reverse Leakage Current (uA)
Output Voltage (V)
APL5151-33
Load Current (mA)
Dropout Voltage (mV)
APL5151-33
Dropout Voltage vs. Load Current
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw8
Typical Characteristics (Cont.)
Output Noise
Time (s)
VOUT (50uV/div)
-300u
300u
-250u
-200u
-150u
-100u
-50u
0
50u
100u
150u
200u
250u
010m2m 4m 6m 8m
VIN=4.3V f=100HZ-80KHZ
IOUT =50mA COUT=1uF
CBP=0.33uF
0
50
100
150
200
250
0 0.1 0.2 0.3 0.4
Output Noise vs. Bypass Capacitor
Output Noise (uV)
Bypass Capacitor (uF)
VIN=4.3V f=100HZ-80KHZ
IOUT=50mA COUT=1uF
1mA
50mA
Load-Transient Response
Output Voltage (20mV/div)
Time (100us)
VOUT
IOUT
4V
5V
Time (500us/div)
VOUT
VIN
IOUT=50mA
Line-Transient Response
VIN=4.3V
Output Voltage (50mV/div)
APL5151-33 APL5151-33
APL5151-33 APL5151-33
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw9
Typical Characteristics (Cont.)
Entering Shutdown
2.5V
0V
0V
Time (2ms/div)
VOUT
vSHDN
cBP=0.33uF
2.5V
0V
0V
Shutdown Exit Delay
Time (1ms/div)
VOUT
vSHDN
CBP=0.1uF
2.5V
0V
0V
Time (0.1ms/div)
VOUT
VSHDN
0.01
0.1
1
10
0 25 50 75 100 125 150
Region of Stable ESR vs. Load Current
Load Current (mA)
COUT ESR (Ω)
Stable
Region COUT=1uF
Shutdown Exit Delay
APL5151-33
APL5151-33 APL5151-33
APL5151-33
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw10
Typical Characteristics (Cont.)
3.28
3.29
3.3
3.31
3.32
-40 -15 10 35 60 85
Output Voltage vs. Temperature
Temperature (°C )
Output Voltage (V)
APL5151-33
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw11
The minimum input-output voltage difference (dropout)
determines the lowest usable supply voltage. In bat-
tery-powered systems, this will determine the useful
end-of-life battery voltage. Because the APL5151/2/
3/4 use a p-channel MOSFET pass transistor, the drop-
out voltage is a function of drain-to-source on-resis-
tance (RDS(ON)) multiplied by the load current.
The APL5151/2/3/4 load-transient response graphs in
typical characteristics show the transient response.
A step change in the load current from 1mA to 50mA
at 1us will cause a 60mV transient spike. Larger out-
put capacitor and lower ESR can reduce transient
spike.
Application Information
Capacitor Selection and Regulator
Stability
The APL5151/2/3/4 use at least a 1uF capacitor on
the input, and this capacitor can be Aluminum, Tanta-
lum or Ceramic capacitor. The input capacitor with
larger value and lower ESR provides better PSRR and
line-transient response. The output capacitor also can
use Aluminum, Tantalum or Ceramic capacitor, and a
minimum value of 1uF and ESR above 0.06Ω is
recommended. The curve of the stable region in typi-
cal characteristics shows the appropriate output ca-
pacitor ESR for different load current stable operation.
A larger output capacitor can reduce noise and im-
prove load-transient response, stability, and PSRR.
Note that some ceramic dielectrics exhibit large ca-
pacitance and ESR variation with temperature. When
using this capacitor, a minimum 2.2uF or more may
be required to ensure the stability at low temperature
operation. Use a bypass capacitor at BP pin for low
output nvise. Increasing the capacitance will slightly
decrease the output noise, but increase the start-up
time. (See Shutdown Exit Delay and Output Noise
vs.Bypass Capacitor graph in the typical
characteristics)
Load-Transient Considerations
Input-Output (Dropout)Voltage
Reverse Current Protection
The APL5151/2/3/4 have an internal reverse protection,
it does not need an external schottky diode to con-
nect the regulator input and output. If the output volt-
age is forced above the input voltage by more than
11mV, the IC will be shutdown and the ground pin
current is below 0.1uA.
Current Limit
The APL5151/2/3/4 have a current limit protection. The
ouptut voltage will drop close to zero volt, when load
current reaches the limit, and then the load current
will be limited at 50mA after output voltage is below 0.
7V. When the load current back to the value where
limiting started, the output voltage and current will re-
turn to normal value. When output is shorted to
ground, the APL5151/2/3/4 will keep short circuit cur-
rent at 150mA .
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw12
Thermal protection limits total power dissipation in the
device. When the junction temperature exceeds
TJ=+150J, the thermal sensor generates a logic sig-
nal to turn off the pass transistor and allows IC to
cool. When the IC’s junction temperature is down by
10J, the thermal sensor will turn the pass transistor
on again, resulting in a pulsed output during continu-
ous thermal protection. Thermal protection is designed
to protect the APL5151/2/3/4 in the event of fault
conditions. For continuous operation, do not exceed
the absolute maximum junction temperature of
TJ=+150J.
Operating Region and Power Dis-
sipation
The thermal resistance of the case to circuit board,
and the rate of air flow all control the APL5151/2/3/4’s
maximum power dissipation. The power dissipation
across the device is PD = IOUT (VIN-VOUT) and the maxi-
mum power dissipation is:
PDMAX = (TJ-TA) / (?JC + ?CA)
where TJ-TA is the temperature difference between the
junction and ambient air, ?JC is the thermal resis-
tance of the package, and ?CA is the thermal resis-
tance through the printed circuit board, copper traces,
and other materials to the ambient air.
The GND pin of the APL5151/2/3/4 provide an electri-
cal connection to ground and channeling heat away.
If power dissipation is large, connect the GND pin to
ground using a large pad or ground plane, can im-
prove the problem of over heat of IC.
Thermal Protection
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw13
Packaging Information
SOT-23-5
e1
E1 E
b
12 3
45
e
D
A2 A
A1 L 2 L
L 1
a
Millimeters Inches
Dim Min. Max. Min. Max.
A 0.95 1.45 0.037 0.057
A1 0.05 0.15 0.002 0.006
A2 0.90 1.30 0.035 0.051
b0.350.55 0.0138 0.0217
D2.83.00
0.110 0.118
E2.63.00
0.102 0.118
E1 1.5 1.70 0.059 0.067
e0.95 0.037
e1 1.90 0.075
L 0.35 0.55 0.014 0.022
L1 0.20 BSC 0.008 BSC
L2 0.5 0.7 0.020 0.028
N5 5
α0°10°0°10°
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw14
Physical Specifications
Reference JEDEC Standard J-STD-020A APRIL 1999
Reflow Condition (IR/Convection or VPR Reflow)
Pre-heat temperature
183 C
Peak temperature
Time
°
temperature
Classification Reflow Profiles
Convection or IR/
Convection
VPR
Average ramp-up rate(183°C to Peak) 3°C/second max. 10 °C /second max.
Preheat temperature 125 ± 25°C) 120 seconds max
Temperature maintained above 183°C60 – 150 seconds
Time within 5°C of actual peak temperature 10 –20 seconds 60 seconds
Peak temperature range 220 +5/-0°C or 235 +5/-0°C 215-219°C or 235 +5/-0°C
Ramp-down rate 6 °C /second max. 10 °C /second max.
Time 25°C to peak temperature 6 minutes max.
Package Reflow Conditions
pkg. thickness ≥
≥≥
≥ 2.5mm
and all bgas
pkg. thickness < 2.5mm and
pkg. volume ≥
≥≥
≥ 350 mm³
pkg. thickness < 2.5mm and pkg.
volume < 350mm³
Convection 220 +5/-0 °C Convection 235 +5/-0 °C
VPR 215-219 °C VPR 235 +5/-0 °C
IR/Convection 220 +5/-0 °C IR/Convection 235 +5/-0 °C
Terminal Material Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb)
Lead Solderability Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3.
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw15
Reliability test program
Test item Method Description
SOLDERABILITY MIL-STD-883D-2003 245°C , 5 SEC
HOLT MIL-STD-883D-1005.7 1000 Hrs Bias @ 125 °C
PCT JESD-22-B, A102 168 Hrs, 100 % RH , 121°C
TST MIL-STD-883D-1011.9 -65°C ~ 150°C, 200 Cycles
ESD MIL-STD-883D-3015.7 VHBM > 2KV, VMM > 200V
Latch-U p JESD 78 10m s , Itr > 100mA
Carrier Tape
A
J
B
T2
T1
C
t
Ao
E
W
Po P
Ko
Bo
D1
D
F
P1
A
pp
lication A B C J T1 T2 W P E
178±172
± 1.0 13.0 + 0.2 2.5 ± 0.15 8.4 ± 2 1.5± 0.3 8.0+ 0.3
- 0.3 4 ± 0.1 1.75± 0.1
F D D1 Po P1 Ao Bo Ko t
SOT-23-5
3.5 ± 0.05 1.5 +0.1 1.5 +0.1 4.0 ± 0.1 2.0 ± 0.1 3.15 ± 0.1 3.2± 0.1 1.4± 0.1 0.2±0.03
Copyright ANPEC Electronics Corp.
Rev. B.1 - May., 2003
APL5151/2/3/4
www.anpec.com.tw16
Application Carrier Width Cover Tape Width Devices Per Reel
SOT- 23 8 5.3 3000
Cover Tape Dimensions
Anpec Electronics Corp.
Head Office :
5F, No. 2 Li-Hsin Road, SBIP,
Hsin-Chu, Taiwan, R.O.C.
Tel : 886-3-5642000
Fax : 886-3-5642050
Taipei Branch :
7F, No. 137, Lane 235, Pac Chiao Rd.,
Hsin Tien City, Taipei Hsien, Taiwan, R. O. C.
Tel : 886-2-89191368
Fax : 886-2-89191369
Customer Service
