response and low ripple over the full load range with
minimum output capacitance and no ESR requirements.
The device features a built in soft start of 2.9 ms and
integrated compensation.
The device also includes cycle-by-cycle current limit, over
temperature protection (OTP) and input under-voltage
lockout (UVLO).
The SiP12117 is available in lead (Pb)-free 3 mm x 3 mm
DFN 10 lead package with thermal pad.
FEATURES
• 4.5 V to 15 V input voltage
• Adjustable output voltage down to 0.6 V
• 3 A continuous output current
• Integrated compensation
• 600 kHz switching frequency
• Ultrafast transient response
• < 5 μA typical shutdown current
• Cycle by cycle current limit
• Power good function
• Fixed soft start: 2.9 ms, typ.
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
APPLICATIONS
• Graphics cards
• Set-top-box
• LCD TV
• Notebook computers
• HDD / SSD
TYPICAL APPLICATION CIRCIUT AND PACKAGE OPTIONS
Enable
Power good
Input
4.5 V to 15 V
V
IN
P
GOOD
EN
BOOT
V
OUT
LX
V
CC
SiP12117
FB
P
GND
Fig. 1 - Typical Application Circuit for SiP12117
S17-0307-Rev. B, 06-Mar-17
Document Number: 62973
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
SiP12117
www.vishay.com
PIN CONFIGURATION
Vishay Siliconix
EN 10
P
GOOD
9
BOOT 8
LX 7
LX 6
1 FB
2 VCC
3 VIN
4 P
GND
5 P
GND
A
GND
pad
Fig. 2 - SiP12117 Pin Configuration (Bottom View)
PIN CONFIGURATION
PIN NUMBER
1
2
3
4, 5
6, 7
8
9
10
Pad
NAME
FB
V
CC
V
IN
P
GND
LX
BOOT
P
GOOD
EN
A
GND
FUNCTION
Feedback voltage 0.6 V (typ.) input. Use a resistor divider between V
OUT
and thermal pad to set the output
voltage
Internal regulator output
Input supply voltage for power MOS and regulator. V
IN
= 4.5 V to 15 V
Power ground
Switching node, inductor connection point
Bootstrap pin - connect a capacitor of at least 100 nF from BOOT to LX to develop the floating supply
for the high-side gate driver
Power good output. Open drain
Enable input. Pull enable above 1.5 V to enable and below 0.4 V to disable the part. Do not float this pin
Analog ground. The pad also improves thermal performance
ORDERING INFORMATION
PART NUMBER
SiP12117DMP-T1-GE4
SiP12117DB
PACKAGE
DFN10 3 x 3
Reference board
MARKING (LINE 1: P/N)
2117
MARKING
P/N
FYWLL
Format:
Line 1: Dot
Line 2: P/N
Line 3:
Siliconix
logo + ESD dymbol
Line 4: Factory code + year code + work week code + LOT code
S17-0307-Rev. B, 06-Mar-17
Document Number: 62973
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
SiP12117
www.vishay.com
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL PARAMETER
V
IN
V
CC
LX
LX (AC)
BOOT
All Logic Input and Output (EN, FB, P
GOOD
)
TEMPERATURE
Junction Temperature
Storage Temperature
POWER DISSIPATION
Junction to Ambient Thermal Impedance
(R
thJA
)
ESD PROTECTION
Electronic Discharge Protection
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.
CONDITIONS
Reference to P
GND
Reference to A
GND
Reference to P
GND
100 ns
10 ns
Reference to P
GND
Reference to A
GND
LIMIT
-0.3 to +16
-0.3 to +6
-1 to +16
-2 to +17
-6 to +17
-0.3 to V
IN
+ V
CC
-0.3 to V
CC
+ 0.3
UNIT
V
-40 to +150
-65 to +150
°C
36.3
°C/W
HBM
2
kV
RECOMMENDED OPERATING RANGE
(all voltages referenced to GND = 0 V)
ELECTRICAL PARAMETER
V
IN
V
OUT
TEMPERATURE
Recommended Ambient Temperature
Operating Junction Temperature
-40 to +85
-40 to +125
°C
MINIMUM
4.5
0.6
TYPICAL
-
-
MAXIMUM
15
5.5
UNIT
V
S17-0307-Rev. B, 06-Mar-17
Document Number: 62973
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
SiP12117
www.vishay.com
Vishay Siliconix
ELECTRICAL SPECIFICATIONS
(test condition unless otherwise specified)
PARAMETER
POWER SUPPLY
Input Voltage
V
CC
Voltage
Input Current
Shutdown Current
V
IN
U
VLO
Threshold
V
IN
U
VLO
Hysteresis
CONTROLLER AND TIMING
Feedback Voltage
V
FB
Input Bias Current
On-Time (600 kHz)
Soft Start Timing
(1)
SYMBOL
TEST CONDITION
V
IN
= 12 V, T
A
= -40 °C to +85 °C
LIMITS
MIN.
4.5
-
TYP.
-
5
1.5
5
2.8
550
600
600
-
138
2.9
85
55
4.25
145
35
95
-10
28
8
-
-
MAX.
15
-
-
10
-
-
612
615
100
-
5
140
105
5.1
-
-
-
-
50
-
-
0.4
UNIT
V
IN
V
CC
IV
IN_NOLOAD
IV
IN_SHDN
V
IN_UVLO
V
IN_UVLO_HYS
T
A
= 25 °C
T
A
= -40 °C to +85 °C
V
IN
= 12 V, (V
OUT
= 1 V)
T
A
= 25 °C, non-switching, no load
EN = 0 V
Rising edge
V
mA
μA
V
mV
-
-
-
-
588
585
-
-
-
V
FB
I
FB
t
ON
mV
nA
ns
ms
POWER MOSFETs
High-Side On Resistance
Low-Side On Resistance
FAULT PROTECTIONS
Over Current Limit
Over Temperature Protection
(1)
POWER GOOD
Power Good Output Threshold
Power Good Pull Low Resistance
Power Good Delay Time
ENABLE THRESHOLD
Logic High Level
Logic Low Level
Note
(1)
Not tested, guaranteed by design.
V
EN_H
V
EN_L
1.5
-
V
V
FB_RISING_VTH_OV
V
FB_FALLING_VTH_UV
R
ON_PGOOD
t
DLY_PGOOD
Rising (% V
OUT
)
Falling (% V
OUT
)
-
-
-
-
%
μs
I
OCP
Inductor valley current, T
A
= 25 °C
Rising temperature
Hysteresis
3.6
-
-
A
°C
R
ON_HS
R
ON_LS
V
GS
= 5 V
-
-
m
S17-0307-Rev. B, 06-Mar-17
Document Number: 62973
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
SiP12117
www.vishay.com
FUNCTIONAL BLOCK DIAGRAM
Vishay Siliconix
V
CC
2
P
GOOD
9
EN
10
Regulator
OTP
V
IN
3
BOOT
8
BOOT
0.6 V
reference
Soft
start
+
+ OTA
-
V
FB
UVLO
+
-
Control
logic
section
ON-time
generator
1
Anti-xcond
control
V
CC
LX
6, 7
PWM comparator
I
sense
I-V
converter
ZCD
P
GND
4, 5
OCP
PAD
I
sense
Current
mirror
Fig. 3 - SiP12117 Functional Block Diagram
S17-0307-Rev. B, 06-Mar-17
Document Number: 62973
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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