MP156
Small, Energy-Efficient, Off-line Regulator
30mW No-Load Power Consumption
The Future of Analog IC Technology
DESCRIPTION
MP156 is a primary-side regulator that provides
accurate constant voltage (CV) regulation
without opto-coupler, support Buck, Buck-Boost,
Boost and Flyback topologies. It has an
integrated 500V MOSFET to simplify the
structure and reduce costs. These features
make it a competitive candidate for off-line low
power applications, such as home appliances
and standby power.
MP156 is a green-mode-operation regulator.
Both its the peak current and the switching
frequency decrease as the load decreases to
provide excellent efficiency at light load, thus
improving the overall average efficiency.
MP156 features various protections, including
thermal shutdown (TSD), VCC under-voltage
lockout (UVLO), overload protection (OLP),
short-circuit protection (SCP), and open loop
protection.
MP156 is available in the TSOT23-5 and
SOIC8 packages.
FEATURES
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Primary-side constant voltage (CV) control,
supporting Buck, Buck-Boost, Boost and
Flyback topologies
Integrated 500V/20Ω MOSFET
<30mW no-load power consumption
Up to 4W output power
Maximum DCM output current less than
130mA
Maximum CCM output current less than
220mA
Low VCC Operating Current
Frequency foldback
Limited maximum frequency
Peak-current compression
Internal high-voltage current source
Internal 350ns leading-edge blanking
Thermal shutdown (auto restart)
VCC under voltage lockout with hysteresis
Timer based over-load protection.
Short-circuit protection
Open-loop protection
Home appliances, white goods and
consumer electronics
Industrial controls
Standby power
APPLICATIONS
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance. “MPS” and “The
Future of Analog IC Technology” are Registered Trademarks of Monolithic Power
Systems, Inc.
TYPICAL APPLICATION
MP156 Rev. 1.15
4/21/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
1
MP156 –SMALL, ENERGY-EFFICIENT, OFF-LINE REGULATOR
ORDERING INFORMATION
Part Number*
MP156GJ
MP156GS
Package
TSOT23-5
SOIC8
Top Marking
AFA
MP156
* For Tape & Reel, add suffix –Z (e.g. MP156GJ–Z);
* For Tape & Reel, add suffix –Z (e.g. MP156GS–Z);
PACKAGE REFERENCE
TOP VIEW
TOP VIEW
VCC
FB
SOURCE
1
2
3
5
DRAIN
VCC
FB
SOURCE
1
2
3
4
8
7
6
5
N/C
DRAIN
N/C
N/C
4
SOURCE
SOURCE
TSOT23-5
SOIC8
ABSOLUTE MAXIMUM RATINGS
(1)
Drain to source .............................-0.7V to 500V
All other pins ..................................-0.7V to 6.5V
(2)
Continuous Power Dissipation ....(T
A
= +25°C)
TSOT23-5 ..................................................... 1W
SOIC8 ........................................................... 1W
Junction Temperature ...............................150°C
Lead Temperature ....................................260°C
Storage Temperature............... -60°C to +150°C
ESD Capability Human Body Mode .......... 4.0kV
ESD Capability Machine Mode .................. 200V
Thermal Resistance
(4)
θ
JA
θ
JC
TSOT23-5.............................. 100 ..... 55... °C/W
SOIC8..................................... 96 ...... 45... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature T
J
(MAX), the junction-to-
ambient thermal resistance
θ
JA
, and the ambient temperature
TA. The maximum allowance continuous power dissipation at
any
ambient
temperature
is
calculated
by
PD(MAX)=(TJ(MAX)-TA)/θ
JA
. Exceeding the maximum
allowance power dissipation will cause excessive die
temperature, and the regulator will go into thermal shutdown.
Internal thermal shutdown circuit protects the device from
permanent damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
Recommended Operating Conditions
(3)
Operating Junction Temp. (T
J
). -40°C to +125°C
Operating VCC range .....................5.3V to 5.6V
MP156 Rev. 1.15
4/21/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
2
MP156 –SMALL, ENERGY-EFFICIENT, OFF-LINE REGULATOR
ELECTRICAL CHARACTERISTICS
V
CC
= 5.8V, T
A
= 25°C, unless otherwise noted.
Parameter
Symbol
Condition
VCC=4V;V
Drain
=100V
VCC=5.8V;V
Drain
=400V
Min
2.5
500
5.4
5.1
5.6
5.3
250
3.4
2.4
VCC=5.8V,
D=40%
f
s
=37kHz,
430
165
VCC=5.3V
500
20
260
290
350
450
180
15
2.45
1.6
f
s
=37kHz
18
2.55
1.7
170
60
150
21
2.65
1.8
345
16
5.8
5.6
Typ
3.5
10
Max
4.5
12
Units
mA
μA
V
V
V
mV
V
V
μA
uA
μA
V
Ω
mA
ns
mA
ns
μs
V
V
ms
mV
°C
Start-up Current Source (Drain Pin)
Internal regulator supply current
I
regulator
Drain pin leakage current
I
Leak
Breakdown Voltage
V
(BR)DSS
Supply Voltage Management (VCC Pin)
VCC level (increasing) where
VCC
OFF
the internal regulator stops
VCC level (decreasing) where
VCC
ON
the internal regulator turns on
VCC regulator on and off
hysteresis
VCC level (decreasing) where
VCC
stop
the IC stops
VCC level (decreasing) where
VCC
pro
the protection phase ends
Internal IC consumption
Internal IC consumption (No
switching)
Internal IC consumption, latch-
off phase
Internal MOSFET (Drain Pin)
Breakdown Voltage
ON resistance
Internal Current Sense
Peak current limit
Leading-edge blanking
SCP point
Leading-edge blanking for SCP
Feedback Input (FB Pin)
Minimum off time
Primary MOSFET feedback
turn-on threshold
OLP feedback trigger threshold
OLP
OLP delay time
Open-loop detection
Thermal Shutdown
Thermal shutdown threshold
I
Limit
I
CC
I
CC
I
CCLATCH
V
BRDSS
R
on
τ
LEB1
I
SCP
τ
LEB2
τ
minoff
V
FB
V
FB_OLP
τ
OLP
V
OLD
MP156 Rev. 1.15
4/21/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
3
MP156 –SMALL, ENERGY-EFFICIENT, OFF-LINE REGULATOR
TYPICAL CHARACTERISTICS
Breakdown Voltage vs.
Junction Temperature
640
620
600
V
BRDSS
(V)
VFB(V)
2
1.6
1.2
0.8
0.4
On-State Resistance vs.
Junction Temperature
Feedback Voltage vs.
Junction Temperature
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
580
560
540
520
500
-40 -20
0
25
85 105 125
0
-40 -20
0
25
85 105 125
2
-40 -20
0
25
85 105 125
20
19
18
17
16
15
14
13
12
11
Minimum Off Time vs.
Junction Temperature
10
-40 -20
0
25
85 105 125
MP156 Rev. 1.15
4/21/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
4
MP156 –SMALL, ENERGY-EFFICIENT, OFF-LINE REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= 265VAC, V
OUT
= 12V, I
OUT
= 150mA, L = 1.8mH, C
OUT
= 100
μ
F, T
A
= +25°C, unless otherwise
noted.
Start Up
Normal Operation
SCP
Zoom In
Zoom In
Zoom In
V
DS
100V/div.
I
L
250mA/div.
V
DS
100V/div.
I
L
250mA/div.
V
DS
100V/div.
I
L
250mA/div.
Open Loop Protection
Zoom In
V
DS
100V/div.
I
L
250mA/div.
MP156 Rev. 1.15
4/21/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
5
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