Milestone Semiconductor Inc.
35V, 1.6μA Ultra Low Quiescent Current,
200mA, Low Dropout Voltage Regulator
MST53XXB
Description
The
MST53XXB
series is a
high
voltage
，
ultralow-power，low dropout voltage regulator. The
device can deliver 100mA output current with a
dropout voltage of 300mV and allows an input
voltage as high as 35V. The typical quiescent current
is only 1.6µA. The device is available in fixed output
voltages of 1.8, 2.5, 3.0, 3.3, 3.6, 4.0, 4.2 and 5.0V.
The device features integrated short-circuit and
thermal shutdown protection.
Although
designed
primarily
as
fixed
voltage
Features
Low Quiescent Current：1.6μA
High Input Voltage： Up to 35V
High Output Current：≥200mA
Low Dropout Voltage：
30mV@10mA
300mV@100mA
600mV@200mA
Fixed Output Voltages：1.8, 2.5, 3.0, 3.3, 3.6，
4.0，4.2 and 5.0V
High-accuracy Output Voltage
MST 53XXB ±2%
Good Transient Response
Integrated Short-Circuit Protection
Integrated Thermal Protection
Available Packages：
MST53XXBTE
MST53XXBTG
MST53XXBTS
MST53XXBTY
SOT23-3
SOT23-5
SOT89-3
TO92
regulators, the device can be used with external
components to obtain variable voltages.
Application
Battery-powered equipment
Smoke detector and sensor
Microcontroller Applications
Home Appliance
Pin Descriptions
Page1-10
Rev.1.4 June-21-2018
A fabless company serves market with technology innovation
Milestone Semiconductor Inc.
35V, 1.6μA Ultra Low Quiescent Current,
200mA, Low Dropout Voltage Regulator
MST53XXB
Packages and Pin Assignments
Functional Block Diagram
VIN
VOUT
Gate Driver
Current Limit
And Thermal
Shutdown
R2
+
-
1.2V
R1
GND
Page2-10
Rev.1.4 June-21-2018
A fabless company serves market with technology innovation
Milestone Semiconductor Inc.
35V, 1.6μA Ultra Low Quiescent Current,
200mA, Low Dropout Voltage Regulator
MST53XXB
Absolute Maximum Ratings
Item
Voltage
Current
Description
VIN Pin to GND Pin
VOUT Pin to GND pin
VOUT Pin to VIN Pin
Peak output
Operating Ambient Temperature
Temperature
Storage Temperature
Operating virtual junction
Temperature
SOT89
Thermal Resistance
(Junction to Ambient)
SOT23-3
SOT23-5
TO92
SOT89
Power Dissipation
SOT23-3
SOT23-5
TO92
Electrostatic discharge
rating
Human Body Model（HBM）
Charged Device Model（MM）
4
100
-40
-40
-
180
380
300
200
600
300
400
600
Min
-0.3
-0.3
-35
Max
35
6
0.3
Internally limited
85
150
150
Unit
V
V
V
℃
℃
℃
℃
/W
℃
/W
℃
/W
℃
/W
mW
mW
mW
mW
kV
V
Note：Stresses exceeding the range specified under “Absolute Maximum Ratings” may cause substantial
damage to the device.Functionaloperationofthisdeviceatotherconditionsbeyondthoselistedin
thespecificationisnotimpliedandprolongedexposuretoextremeconditions may affectdevicereliability.
Page3-10
Rev.1.4 June-21-2018
A fabless company serves market with technology innovation
Milestone Semiconductor Inc.
35V, 1.6μA Ultra Low Quiescent Current,
200mA, Low Dropout Voltage Regulator
MST53XXB
Electrical characteristics
（At
T
A=
25°C, C
IN
=1uF, V
IN
=V
OUTNOM
+1.0V, C
OUT
=10µF, unless otherwise noted）
Symbol
V
IN
I
GND
V
OUT(MST53XXB)
I
OUT_MAX
Parameter
Input Voltage
Quiescent Current
Output Voltage
Output Current
I
OUT
=10mA ,
ΔV
OUT
= - V
OUTNOM
*2%
Dropout Voltage
*1
(MST5350)
I
OUT
=100mA ,
ΔV
OUT
= - V
OUTNOM
*2%
I
OUT
=200mA ,
V
DROP
ΔV
OUT
= - V
OUTNOM
*2%
I
OUT
=100mA ,
ΔV
OUT
= - V
OUTNOM
*2%
Dropout Voltage
*1
(MST5333)
I
OUT
=100mA ,
ΔV
OUT
= - V
OUTNOM
*2%
I
OUT
=200mA ,
ΔV
OUT
= - V
OUTNOM
*2%
ΔV
OUT
ΔV
OUT
x100/
ΔV
IN
x V
OUT
I
LIMIT
T
SHDN
Load Regulation
Line Regulation
Current Limit
Thermal Shutdown
Threshold
1mA≤I
OUT
≤100mA
I
OUT
=1mA,
V
IN
=(V
OUTNOM
+1V) to 35V
V
IN
=(V
OUTNOM
+1V) to 35V
R
LOAD
=V
OUTNOM
/1A
VIN=12V, No load
VIN=12V, I
OUT
=10mA
Test Conditions
MIN
—
—
-2%
200
—
—
—
—
—
—
—
—
—
—
250
30
300
600
30
300
600
20
0.2
450
125
TYP
—
1.6
MAX
35
—
2%
—
—
—
—
—
—
—
—
—
—
—
UNIT
V
μA
V
OUT
mA
mV
mV
mV
mV
mV
mV
mV
%/V
mA
℃
Note：*1
Dropout Voltage is the voltage difference between the input and the output at which the output
voltage drops 2% below its nominal value.
Page4-10
Rev.1.4 June-21-2018
A fabless company serves market with technology innovation
Milestone Semiconductor Inc.
35V, 1.6μA Ultra Low Quiescent Current,
200mA, Low Dropout Voltage Regulator
MST53XXB
Application Circuits
VIN
MST53XX
C1
1µF
C2
10µF
VOUT
GND
Common
Common
Typical Performance Characteristics
Test Condition: T
A=
25°C, V
IN
=V
OUTNOM
+1.0 V,I
OUT
=1mA, C
OUT
=10uF, unless otherwise noted.
5.10
5.08
Output Voltage V
OUT
(V)
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
5.06
MST5350B
I
OUT
=1mA
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
-40
Output Voltage V
OUT
(V)
MST5350B I
OUT
=10mA
6
11
16
21
26
31
36
-20
0
20
40
60
80
100
Input Voltage V
IN
(V)
Temperature（℃）
Output Voltage vs. Input Voltage
2.60
Quiescent Current I
Q
(μA)
2.40
2.20
2.00
1.80
1.60
1.40
1.20
1.00
6
11
16
21
26
31
36
Input Voltage V
IN
(V)
Output Voltage vs. Temperature
2.00
1.90
Quiescent Current I
Q
(μA)
1.80
1.70
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0
40
80
120
160
200
Output Current I
OUT
(mA)
MST5350B
No Load
MST5350B V
IN
=6.0V
Quiescent Current vs. Input Voltage
Quiescent Current vs. Output Current
Page5-10
Rev.1.4 June-21-2018
A fabless company serves market with technology innovation
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