• A/V, high density cards, storage, DSL, STB, DVR, DTV,
Industrial PC
TYPICAL APPLICATION CIRCUIT
POWER
SAVE
MODE
ENABLE
POWER
GOOD
INPUT = 2.8 V to 5.5 V
P
GOOD
V
IN
EN AUTO
LX
V
OUT
V
FB
GMO
A
GND
R
ON
V
OUT
AV
IN
P
GND
Fig. 1 - Typical Application Circuit for SiP12108
S20-0484-Rev. C, 29-Jun-2020
Document Number: 62699
1
For technical questions, contact:
powerictechsupport@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
SiP12108, SiP12108A
www.vishay.com
Vishay Siliconix
CONDITIONS
Reference to P
GND
Reference to A
GND
Reference to P
GND
Reference to A
GND
LIMIT
-0.3 to 6
-0.3 to 6
-0.3 to 6
-0.3 to 0.3
-0.3 to AV
IN
+ 0.3
150
-65 to +150
V
UNIT
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL PARAMETER
V
IN
AV
IN
LX
A
GND
to P
GND
All logic inputs
TEMPERATURE
Max. operating junction temperature
Storage temperature
POWER DISSIPATION
Junction to ambient thermal impedance
(R
thJA
)
Maximum power dissipation
ESD PROTECTION
Electrostatic discharge protection
HBM
4
kV
Ambient temperature = 25 °C
Ambient temperature = 100 °C
36.3
3.4
1.3
°C/W
W
°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING RANGE
ELECTRICAL PARAMETER
V
IN
AV
IN
LX
V
OUT
Ambient temperature
MINIMUM
2.8
2.8
-1
0.6
TYPICAL
-
-
-
-
-40 to +85
MAXIMUM
5.5
5.5
5.5
0.85 x V
IN
°C
V
UNIT
S20-0484-Rev. C, 29-Jun-2020
Document Number: 62699
2
For technical questions, contact:
powerictechsupport@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
SiP12108, SiP12108A
www.vishay.com
Vishay Siliconix
TEST CONDITION
UNLESS OTHERWISE SPECIFIED
V
IN
= AV
IN
= 3.3 V, T
A
= -40 °C to +85 °C
LIMITS
MIN.
TYP.
MAX.
UNIT
ELECTRICAL SPECIFICATIONS
PARAMETER
POWER SUPPLY
Power input voltage range
Bias input voltage range
Input current
Shutdown current
AV
IN
UVLO threshold
AV
IN
UVLO hysteresis
PWM CONTROLLER
Feedback reference
V
FB
input bias current
Transconductance
GMO source current
GMO sink current
Switching frequency range
Minimum on-time
Minimum off-time
Soft start time
INTEGRATED MOSFETs
High-side on resistance
Low-side on resistance
FAULT PROTECTIONS
Over current limit
Output OVP threshold
Output UVP threshold
Over temperature protection
POWER GOOD
Power good output threshold
Power good on resistance
Power good delay time
ENABLE THRESHOLD
Logic high Level
Logic low Level
V
EN_H
V
EN_L
1.5
-
-
-
-
0.4
V
V
FB_RISING_VTH_OV
V
FB_FALLING_VTH_UV
R
ON_PGOOD
t
DLY_PGOOD
V
FB
rising above 0.6 V reference
V
FB
falling below 0.6 V reference
-
-
-
-
21
-12.5
30
4
-
-
60
-
%
μs
I
OCP
V
FB_OVP
V
FB_UVP
Inductor valley current
V
FB
with respect to 0.6 V reference
Rising temperature
Hysteresis
-
-
-
-
-
7.5
21
-25
160
30
-
-
-
-
-
A
%
°C
R
ON_HS
R
ON_LS
V
IN
= AV
IN
= 5 V
-
-
35
23
51
35
m
V
FB
I
FB
g
m
I
GMO_SOURCE
I
GMO_SINK
f
SW
t
ON_MIN
t
OFF_MIN
t
SS
Guaranteed by design
Guaranteed by design
V
OUT
= 1.2 V, R
ON
= 100 k
T
A
= 0 °C to +70 °C
T
A
= -40 °C to +85 °C
0.594
0.591
-
-
-
-
0.2
-
-
-
0.600
0.600
2
1
50
50
-
50
125
1.5
0.606
0.609
200
-
-
-
4
-
-
-
V
nA
mS
μA
MHz
ns
ms
V
IN
AV
IN
I
IN_NOLOAD
I
IN_SHDN
AV
IN_UVLO
AV
IN_UVLO_HYS
Non- switching, I
O
= 0 A,
R
on
= 100 k, AUTO = Low
EN = 0 V
AV
IN
rising
2.8
2.8
-
-
2.3
-
-
-
1200
6
2.55
300
5.5
5.5
-
9.5
2.8
-
V
mV
V
SYMBOL
μA
S20-0484-Rev. C, 29-Jun-2020
Document Number: 62699
3
For technical questions, contact:
powerictechsupport@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
SiP12108, SiP12108A
www.vishay.com
FUNCTIONAL BLOCK DIAGRAM
Vishay Siliconix
7
2
6
5
3
1,16
A
GND
8
GMO
AV
IN
P
GOOD
AUTO
EN
V
IN
OTP
0.6 V
REFERENCE
V
IN
UVLO
SOFT
START
V
IN
+
+ OTA
9
+
ON-TIME
GENERATOR
-
PWM COMPARATOR
-
V
FB
CONTROL
LOGIC
SECTION
ANTI-XCOND
CONTROL
LX
11,12,13
V
IN
I-V
Converter
I
sense
ZCD
R
ON
4
P
GND
14,15
-
V
OUT
10
OCP
+
0.45 V
+
V
FB
0.72 V
-
UV Comparator
(SiP12108 only)
Current
Mirror
PAD
OV Comparator
I
sense
Fig. 2 - SiP12108 Functional Block Diagram
ORDERING INFORMATION
PART NUMBER
SiP12108DMP-T1GE4
SiP12108ADMP-T1GE4
(1)
SiP12108DB
SiP12108ADB
(1)
(1)
PACKAGE
QFN16 3 x 3
QFN16 3 x 3
N/A
MARKING
(LINE 2: P/N)
2108
108A
Note
Output undervoltage protection (UVP) disabled
P/N
FYWLL
Format:
Line 1: dot
Line 2: P/N
Line 3:
Siliconix
logo + ESD
symbol
Line 4: factory code + year code + work week code + LOT code
S20-0484-Rev. C, 29-Jun-2020
Document Number: 62699
4
For technical questions, contact:
powerictechsupport@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
SiP12108, SiP12108A
www.vishay.com
PIN CONFIGURATION
P
GND
P
GND
Vishay Siliconix
V
IN
16
V
IN
1
AV
IN
2
EN 3
R
ON
4
5
AUTO
15
14
13
12 LX
11 LX
10 V
OUT
9 V
FB
6
P
GOOD
7
GMO
QFN16
3x3
Fig. 3 - SiP12108 Pin Configuration (Top View)
PIN CONFIGURATION
PIN NUMBER
1, 16
2
3
4
5
6
7
8
9
10
11, 12, 13
14, 15
EP
NAME
V
IN
AV
IN
EN
R
ON
AUTO
P
GOOD
GMO
A
GND
V
FB
V
OUT
LX
P
GND
FUNCTION
Input supply voltage for power MOS. V
IN
= 2.8 V to 5.5 V
Input supply voltage for internal circuitry. AV
IN
= 2.8 V to 5.5 V
Enable pin. Pull enable above 1.5 V to enable the part and below 0.4 V to disable. Do not float this pin
An external resistor between R
ON
and GND sets the switching on time
Sets switching mode. Connect AUTO to AV
IN
for forced continuous mode and AUTO to GND for power
save mode. Do not float
Power good output. Open drain
Connect to an external RC network for loop compensation and droop function
Analog ground
Feedback voltage. 0.6 V (typ.). Use a resistor divider between V
OUT
and A
GND
to set the output voltage
V
OUT
, output voltage sense connection
Switching output, inductor connection point
Power ground
Exposed paddle (bottom). Connect to a good PCB thermal ground plane
S20-0484-Rev. C, 29-Jun-2020
Document Number: 62699
5
For technical questions, contact:
powerictechsupport@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
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