BCT2036
Low Power, Low Dropout
RF-Linear Regulators
BCT2036
Low Power, Low Dropout, RF-Linear Regulators
GENERAL DESCRIPTION
FEATURES
The BCT2036 series low-power, low-dropout,
CMOS linear voltage regulators operate from a
1.6V to 5.5V input voltage and deliver up to
300mA output current. They are the perfect choice
for low voltage, low power applications. A low
ground current makes this part attractive for
battery operated power systems. The BCT2036
series also offer low dropout voltage to prolong
battery life in portable electronics. Systems
requiring a quiet voltage source, such as RF
applications, will benefit from the BCT2036 series
low output noise and high PSRR.
Low Dropout Voltage
Thermal Overload Protection
Built-In Fold Back Protection Circuit
20μA Low Supply Current
10nA Logic-Controlled Shutdown
1.6V to 5.5V Input Voltage Range
Fixed Outputs of 1.2V, 1.8V, 2.8V, 3.0V,and
3.3V
Adjustable Output from 0.8V to 5.0V
Short Auto-Discharge Function
300mA Output Current
Other features include a 10nA logic-controlled
shutdown mode, short current limit and thermal
shutdown protection.
The BCT2036 has auto-discharge function to
quickly discharge VOUT in the disable status.
The BCT2036 is available in Green SOT23-3,
SOT23-5,SC70-5, UTDFN1X1-4L packages. It
operates over an ambient temperature range of
-40℃ to +85°C .
High Output Voltage Accuracy
Quick Start-Up Time
-40℃ to +85℃ Operating Temperature Range
Available in Green SOT23-3, SOT23-5,
UTDFN1X1-4L,SC70-5 Packages.
APPLICATIONS
Cellular Telephones
Cordless Telephones
PCMCIA Cards
Modems
MP3 Player
Hand-Held Instruments
Palmtop Computers
Electronic Planners
Portable/Battery-Powered Equipment
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
ORDERING INFORMATION
Order Number
VOUT(V)
Package
Type
Temperature
Range
Marking
QTY/Reel
BCT2036EUR12-TR
1.2
SOT23-3
-40°C to +85°C
B2XX
3000
BCT2036EUR18-TR
1.8
SOT23-3
-40°C to +85°C
B8XX
3000
__
BCT2036EUR28-TR
2.8
SOT23-3
-40°C to +85°C
B8XX
3000
BCT2036EUR30-TR
3.0
SOT23-3
-40°C to +85°C
B0XX
3000
BCT2036EUR33-TR
3.3
SOT23-3
-40°C to +85°C
B3XX
3000
BCT2036EUK12-TR
1.2
SOT23-5
-40°C to +85°C
B2XX
3000
BCT2036EUK18-TR
1.8
SOT23-5
-40°C to +85°C
B8XX
3000
__
BCT2036EUK28-TR
2.8
SOT23-5
-40°C to +85°C
B8XX
3000
BCT2036EUK30-TR
3.0
SOT23-5
-40°C to +85°C
B0XX
3000
BCT2036EUK33-TR
3.3
SOT23-5
-40°C to +85°C
B3XX
3000
BCT2036EUKVAD-TR
ADJ
SOT23-5
-40°C to +85°C
BAXX
3000
BCT2036EXK12-TR
1.2
SC70-5
-40°C to +85°C
B2XX
3000
BCT2036EXK18-TR
1.8
SC70-5
-40°C to +85°C
B8XX
3000
__
BCT2036EXK28-TR
2.8
SC70-5
-40°C to +85°C
B8XX
3000
BCT2036EXK30-TR
3.0
SC70-5
-40°C to +85°C
B0XX
3000
BCT2036EXK33-TR
3.3
SC70-5
-40°C to +85°C
B3XX
3000
BCT2036EXKVAD-TR
ADJ
SC70-5
-40°C to +85°C
BAXX
3000
BCT2036ELS12-TR
1.2
UTDFN1x1-4L
-40°C to +85°C
B2X
10000
BCT2036ELS18-TR
1.8
UTDFN1x1-4L
-40°C to +85°C
10000
BCT2036ELS28-TR
2.8
UTDFN1x1-4L
-40°C to +85°C
B8X
_
B8X
BCT2036ELS30-TR
3.0
UTDFN1x1-4L
-40°C to +85°C
B0X
10000
BCT2036ELS33-TR
3.3
UTDFN1x1-4L
-40°C to +85°C
B3X
10000
10000
Note:
"B" in Marking is product short code for BCT2036
"XX" or "X" in Marking will be appeared as the batch code.
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
ABSOLUTE MAXIMUM RATINGS
OVERSTRESS CAUTION
Stresses beyond those listed under “Absolute Maximum Ratings”
IN to GND......................................................-0.3V to 6.0V
may cause permanent damage to the device. These are stress
Output Short-Circuit Duration....................................Infinite
ratings only, and functional operation of the device at these or any
EN to GND……………....................................-0.3V to 6.0V
other conditions beyond those indicated in the operational
OUT,BP/FB to GND............................-0.3V to (VIN +0.3V)
sections of the specifications is not implied. Exposure to absolute
Power Dissipation, PD@TA=25℃
maximum rating conditions for extended periods may affect device
SOT23-3....................................................................0.42W
reliability.
SOT23-5....................................................................0.48W
SC70-5......................................................................0.38W
UTDFN1x1-4L..........................................................0.45W
ESD SENSITIVITY CAUTION
Package Thermal Resistance
SOT23-3................................................................300℃/W
This integrated circuit can be damaged by ESD if you don’t
SOT23-5, θJA.........................................................260℃/W
pay attention to ESD protection. Broadchip recommends
SC70-5, θJA...........................................................330℃/W
that all integrated circuits be handled with appropriate
UTDFN1x1-4L......................................................280℃/W
precautions. Failure to observe proper handling and
Junction Temperature................................................150℃
installation procedures can cause damage. ESD damage
Storage Temperature Range.......................-65℃ to 150℃
can range from subtle performance degradation to
Lead Temperature (Soldering, 10 sec)......................260℃
complete device failure. Precision integrated circuits may
ESD Susceptibility
be more susceptible to damage because very small
HBM..........................................................................4000V
parametric changes could cause the device not to meet its
MM..............................................................................400V
published specifications.
RECOMMENDED OPERATING
CONDITIONS
DISCLAIMER
Broadchip reserves the right to make any change in circuit
Operating Voltage Range.........................................1.6V to 5.5V
design, specification or other related things if necessary
Operating Temperature Range ............................-40℃ to +85℃
without notice at any time. Please contact Broadchip sales
office to get the latest datasheet.
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
PIN CONFIGURATION
（TOP VIEW）
（TOP VIEW）
GND
IN
1
IN
GND
EN
2
SOT23-3
5
OUT
IN
MARKING
MARKING
OUT
3
1
（TOP VIEW）
2
3
4
3
EN
2
GND
0
4
BP/FB
OUT
SOT23-5/SC70-5
1
UTDFN1x1-4L
PIN DESCRIPTION
PIN
UTDFN
1X1-4L
NAME
SOT23-5
SOT23-3
SC70-5
FUNCTION
1
5
2
OUT
Regulator Output.
2
2
1
GND
Ground.
3
3
-
EN
Enable Pin. This pin has an internal pull-down resistor.
A logic low reduces the supply current to less than
1μA.Connect to IN for normal operation.
4
1
3
IN
Regulator Input. Supply voltage can range from 1.6V to
5.5V. Bypass with a 1μF capacitor to GND.
BP
-
4
-
to be placed very close to the pin for high PSRR.
FB
0
-
-
Reference-Noise Bypass Pin (fixed voltage version only).
Bypass with a low-leakage 0.01μF ceramic capacitor for
reduced noise at the output. The capacitor is recommended
Adjustable Voltage Version Only. This is used to set the output
voltage of the device.
Exposed The exposed pad should be connected to a large ground plane
Pad
to maximize thermal performance.
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
ELECTRICAL CHARACTERISTICS
(VIN= VOUT(NOMINAL)+0.5V or 1.6V, whichever is greater, Full = -40℃ to +85℃, unless otherwise noted.)
PARAMETER
Input Voltage
SYMBOL
TEMP
MIN
+25℃
IOUT = 0.1mA
IOUT = 0.1mA, BCT2036-ADJ
VIN
Output Voltage Accuracy
Feedback Voltage
CONDITIONS
VFB
Maximum Output Current (1)
Current Limit
Ground Pin Current
Dropout Voltage (2)
Line Regulation
ILIM
IQ
VDROP
VOUT
VIN VOUT
No Load, VEN = VIN
TYP
MAX
UNITS
1.6
5.5
V
+25℃
-2.5
+2.5
%
+25℃
0.78
0.82
V
+25℃
300
+25℃
360
0.8
mA
560
mA
+25℃
20
26
1.2V ≤ VOUT < 1.8V +25℃
590
800
1.8V ≤ VOUT < 2.5V +25℃
320
420
2.5V ≤ VOUT < 3.0V +25℃
215
280
3.0V ≤ VOUT < 3.6V +25℃
190
250
1.8V ≤ VOUT ≤ 3.3V
+25℃
0.01
0.06
+25℃
0.01
0.1
40
IOUT = 300mA
VIN = 1.6V or (VOUT +
0.5V) to 5.5V,
IOUT = 1mA
µA
mV
%/V
VOUT < 1.8V or VOUT
> 3.3V
Load Regulation
ΔVOUT
IOUT = 0.1mA to 300mA
+25℃
12
Short Current Limit
ISHORT
VOUT = 0V
+25℃
200
f = 217Hz
+25℃
80
f = 1kHz
+25℃
70
mV
mA
CBP = 0µF, IOUT = 30mA,
COUT = 1μF, VIN = 2.8V,
VOUT = 1.8V ,
∆VRIPPLE = 0.2VP-P
Power Supply Rejection Ratio
PSRR
dB
CBP = 0.01μF, IOUT = 30mA,
f = 217Hz
+25℃
82
f = 1kHz
+25℃
75
IOUT = 0mA
+25℃
70
VIN = 2.8V,VOUT = 1.8V
IOUT = 30mA +25℃
100
CBP = 0.01µF, f = 10Hz to
IOUT = 0mA
+25℃
25
IOUT = 30mA +25℃
65
COUT = 1μF, VIN = 2.8V,
VOUT = 1.8V ,
∆VRIPPLE = 0.2VP-P
CBP = 0µF, f = 10Hz to
100kHz,COUT = 1µF,
Output Voltage Noise
en
µVRMS
100kHz, COUT = 1µF,
VIN = 2.8V, VOUT = 1.8V
Output
Voltage Temperature
Coefficient (3)
VOUT
TA VOUT
IOUT = 0.1mA
Full
30
ppm/℃
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
ELECTRICAL CHARACTERISTICS（continued）
(VIN= VOUT(NOMINAL)+0.5V or 1.6V, whichever is greater, Full = -40℃ to +85℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
MIN
Full
1.5
TYP
MAX
UNITS
SHUTDOWN
EN Input Threshold
VIH
V
VIN = 1.6V to 5.5V
VIL
Full
0.4
IBH
VEN = 5.5V
Full
0.8
2
IBL
VEN = 0V
Full
0.01
1
Shutdown Supply Current
ISHDN
VEN = 0V
Full
0.01
1
Start-Up Time (4)
tSTR
COUT = 1μF, No Load, CBP = 0µF
+25℃
30
µs
VIN = 4.0V, VEN = 0V
+25℃
50
Ω
TSHDN
140
℃
ΔTSHDN
15
℃
EN Input Bias Current
µA
RON of Discharge MOSFET
µA
THERMAL PROTECTION
Thermal Shutdown
Temperature
Thermal Shutdown Hysteresis
NOTES:
1.
Maximum output current is affected by the PCB layout, size of metal trace, the thermal conduction path between metal layers,
ambient temperature and the other environment factors of system. Attention should be paid to the dropout voltage when VIN <
VOUT + VDROP.
2.
The dropout voltage is defined as VIN - VOUT, when VOUT is 100mV below the value of VOUT.
3.
Output voltage temperature coefficient is defined as the worst-case voltage change divided by the total temperature range.
4.
Time needed for VOUT to reach 90% of final value.
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
TYPICAL APPLICATION CIRCUIT
INPUT
1.6V to 5.5V
1
5
VOUT
IN
CIN
1uF
INPUT
1.6V to 5.5V
OUTPUT
COUT
1uF
3
CIN
1uF
COUT
1uF
BCT2036
3
ON
EN
OFF
BCT2036
4
GND BP
GND
CBP
0.01uF
2
1
SOT23-3
SOT23-5/SC70-5
INPUT
1.6V to 5.5V
1
VOUT
IN
5
CIN
1uF
INPUT
1.6V to 5.5V
OUTPUT
1
3
OFF
EN
4
GND BP
2
SOT23-5/SC70-5
OUTPUT
5
COUT
1uF
BCT2036
ADJ
3
ON
CBP
0.01uF
VOUT
IN
CIN
1uF
COUT
1uF
BCT2036
ON
OUTPUT
2
VOUT
IN
OFF
EN
GND FB
2
R1
4
R2
SOT23-5/SC70-5
NOTES: Choose R2 = 160kΩ to maintain a 5μA minimum load.
Calculate the value for R1 using the following equation:
V
R 1 R 2 OUT - 1
0.8V
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
TYPICAL PERFORMANCE CHARACTERISTICS
VEN = VIN, CIN = 1μF, COUT = 1μF, CBP = 0µF ,TA = +25℃, unless otherwise noted.
Output Voltage vs. Input Voltage
4
3.5
3
2.5
2
1.5
1
0.5
0
Output Voltage（V）
Output Voltage（V）
Output Voltage vs. Input Voltage
IOUT=0.1mA
VOUT=1.8V
0
1
2
3
4
5
4
3.5
3
2.5
2
1.5
1
0.5
0
IOUT=0.1mA
VOUT=3.3V
0
6
1
4
5
6
30
Supply Pin Current（uA）
30
Supply Pin Current（uA）
3
Supply Pin Current vs.Input Voltage
Supply Pin Current vs. Input Voltage
25
20
15
10
IOUT=0mA
VOUT=1.8V
5
25
20
15
10
IOUT=0mA
VOUT=3.3V
5
0
0
0.0 1.0 2.0 3.0 4.0 5.0 6.0
0.0 1.0 2.0 3.0 4.0 5.0 6.0
Input Voltage（V）
Input Voltage（V）
Dropout Voltage vs. Output Current
Dropout Voltage vs. Output Current
400
350
300
250
200
150
100
50
0
VOUT=1.8V
0
50
Dropout Voltage（mV）
Dropout Voltage（mV）
2
Input Voltage（V）
Input Voltage（V）
100 150 200 250 300
Output Current（mA）
400
350
300
250
200
150
100
50
0
VOUT=3.3V
0
50
100 150 200 250 300
Output Current（mA）
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
TYPICAL PERFORMANCE CHARACTERISTICS（continued）
VEN = VIN, CIN = 1μF, COUT = 1μF, CBP = 0µF ,TA = +25℃, unless otherwise noted.
Output Voltage vs. Output Current
Output Voltage vs. Output Current
1.6
1.2
Output Voltage（V）
Output Voltage（V）
2
VIN=2.8V
VOUT=1.8V
0.8
0.4
0
0
4
3.5
3
2.5
2
1.5
1
0.5
0
VIN=4.3V
VOUT=3.3V
0
100 200 300 400 500 600
100 200 300 400 500 600
Output Current（mA）
Output Current（mA）
Ground Pin Current vs. Output Current
Ground Pin Current vs. Output Current
200
Ground Pin Current（uA）
Ground Pin Current（uA）
200
VIN=2.8V
VOUT=1.8V
160
120
80
40
0
VIN=4.3V
VOUT=3.3V
160
120
80
40
0
0
50
100 150 200 250 300
0
50
Output Current（mA）
Power Supply Rejection Ratio vs. Frequency
Power Supply Rejection Ratio vs. Frequency
100
100
CBP=0.01uF
60
40
VIN=2.8V
IOUT=30mA
VOUT=1.8V
20
CBP=0.01uF
80
PSRR（dB）
80
PSRR（dB）
100 150 200 250 300
Output Current（mA）
CBP=0uF
60
40
VIN=4.3V
IOUT=30mA
VOUT=3.3V
20
CBP=0uF
0
0
0.01
0.1
1
10
100
0.01
0.1
Frequency（KHz）
1
10
100
Frequency（KHz）
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
TYPICAL PERFORMANCE CHARACTERISTICS（continued）
VEN = VIN, CIN = 1μF, COUT = 1μF, CBP = 0µF ,TA = +25℃, unless otherwise noted.
Output Voltage vs. Temperature
Output Voltage vs. Temperature
3.315
VIN=2.3V
IOUT=0.1mA
VOUT=1.8V
1.807
1.804
Outpt Voltage（V）
Outpt Voltage（V）
1.810
1.801
1.798
1.795
VIN=3.8V
IOUT=0.1mA
VOUT=3.3V
3.311
3.307
3.303
3.299
3.295
-40
-15
10
35
60
85
-40
-15
Temperature（℃）
10
35
60
85
Temperature（℃）
Start up from EN（VOUT=3.3V）
Start up from EN（VOUT=1.8V）
VEN
VOUT
VIN=4.3V
2V/div
VIN=2.8V
1V/div
VOUT
2V/div
2V/div
VEN
IOUT=0mA
IOUT=0mA
Time 20us/div
Time 20us/div
Shutdown from EN（VOUT=3.3V）
Shutdown from EN（VOUT=1.8V）
VEN
2V/div
2V/div
VEN
VOUT
VOUT
VIN=4.3V
IOUT=0mA
IOUT=0mA
Time 40us/div
Time 40us/div
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2V/div
1V/div
VIN=2.8V
BCT2036
Low Power, Low Dropout
RF-Linear Regulators
TYPICAL PERFORMANCE CHARACTERISTICS（continued）
VEN = VIN, CIN = 1μF, COUT = 1μF, CBP = 0µF ,TA = +25℃, unless otherwise noted.
Line Transient Response（VOUT=3.3V）
Line Transient Response（VOUT=1.8V）
IOUT=30mA
VIN
VOUT
VIN=4.3V to 5.3V
IOUT=30mA
Time 40us/div
Time 40us/div
Load Transient Response（VOUT=1.8V）
Load Transient Response（VOUT=3.3V）
IOUT=1mA to 300mA
IOUT
VOUT
VIN=4.3V
IOUT=1mA to 300mA
Time 100us/div
Time 100us/div
Load Transient Response（VOUT=1.8V）
Load Transient Response（VOUT=3.3V）
IOUT=50mA to 100mA
IOUT
VOUT
Time 100us/div
VIN=4.3V
IOUT=50mA to 100mA
Time 100us/div
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50mV/div
VIN=2.8V
50mV/div
VOUT
50mA/div
50mA/div
IOUT
200mV/div
VIN=2.8V
200mV/div
VOUT
100mA/div
100mA/div
IOUT
50mV/div
VIN=2.8V to 3.8V
50mV/div
VOUT
1V/div
1V/div
VIN
BCT2036
Low Power, Low Dropout
RF-Linear Regulators
PACKAGE OUTLINE DIMENSIONS
SOT23-3
Symbol
A
Dimensions In Millimeters
Min
Max
2.82
3.02
e
0.95(BSC)
b
0.28
0.45
B
1.50
1.70
B1
2.75
3.05
C
1.05
1.15
C1
0.03
0.15
C2
0.12
0.23
L
0.35
0.55
θ
0°
8°
SOT23-3 Surface Mount Package
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
SOT23-5
Symbol
Dimensions In Millimeters
Min
Max
A
1.05
1.15
A1
0.03
0.15
B
1.5
1.7
b
0.28
0.45
C
2.75
3.05
D
2.82
3.02
e
0.95(BSC)
H
0.12
0.23
L
0.35
0.55
SOT23-5 Surface Mount Package
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
SC70-5
SC70-5 Surface Mount Package
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
UTDFN1x1-4L
Symbol
Dimensions In Millimeters
Min
Max
A
0.335
0.405
A1
0.000
0.050
A2
0.100 REF
D
0.950
1.050
D1
0.450
0.550
E
0.950
1.050
E1
0.450
0.550
K
0.195 REF
b
0.175
0.275
e
0.575
0.675
L
0.200
0.300
UTDFN1x1-4L Surface Mount Package
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BCT2036
Low Power, Low Dropout
RF-Linear Regulators
LAND PATTERN DATA
SOT23-5
RECOMMENDED PCB LAYOUT PATTERN (Unit: mm)
REV2.0
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Copyright © BROADCHIP TECHNOLOGY CO., LTD
16
BCT2036
Low Power, Low Dropout
RF-Linear Regulators
SOT23-3
RECOMMENDED PCB LAYOUT PATTERN (Unit: mm)
SC70-5
RECOMMENDED PCB LAYOUT PATTERN (Unit: mm)
REV2.0
www.broadchip.com
Copyright © BROADCHIP TECHNOLOGY CO., LTD
17
BCT2036
Low Power, Low Dropout
RF-Linear Regulators
UTDFN1x1-4L
0.25
0.4
0.4
1.2
0.4
0.9
RECOMMENDED PCB LAYOUT PATTERN (Unit: mm)
REV2.0
www.broadchip.com
Copyright © BROADCHIP TECHNOLOGY CO., LTD
18
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