IHLP3232DZER2R2 [VISHAY]

Selectable frequency from 200 kHz to 1 MHz with an external resistor;
IHLP3232DZER2R2
型号: IHLP3232DZER2R2
厂家: VISHAY    VISHAY
描述:

Selectable frequency from 200 kHz to 1 MHz with an external resistor

文件: 总10页 (文件大小:632K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
SiC401, SiC402, SiC403  
www.vishay.com  
Vishay Siliconix  
Reference Board User’s Manual for SiC403 (6 A), SiC402 (10 A),  
and SiC401 (15 A) Synchronous Buck Regulators  
FEATURES  
PRODUCT SUMMARY SiC401A, SIC401BCD  
• SiC401A/B: 3 V to 17 V input range.  
Input Voltage Range  
Output Voltage Range  
Operating Frequency  
Continuous Output Current  
Package  
3 V to 17 V  
0.6 V to VIN x 0.75  
200 kHz to 1 MHz  
15 A  
SiC402A/B, SiC403A/B: 3 V to 28 V input range.  
• Adjustable output voltage down to 0.6 V  
• 6 A (SiC403), 10 A (SiC402), and 15 A (SiC401) continuous  
output current  
MLP55-32L  
• Selectable frequency from 200 kHz to 1 MHz with an  
external resistor  
PRODUCT SUMMARY SiC402A, SIC402BCD  
• 95 % peak efficiency  
Input Voltage Range  
Output Voltage Range  
Operating Frequency  
Continuous Output Current  
Package  
3 V to 28 V  
0.6 V to VIN x 0.75  
200 kHz to 1 MHz  
10 A  
• Stable with any capacitor; no external ESR network  
required  
• Ultrafast transient response  
• Power saving scheme for increased light load efficiency  
MLP55-32L  
1 % accuracy of VOUT setting  
• Cycle-by-cycle current limit  
PRODUCT SUMMARY SiC403A, SIC403BCD  
• Fully protected with OTP, SCP, UVP, OVP  
• PGOOD Indicator  
Input Voltage Range  
Output Voltage Range  
Operating Frequency  
Continuous Output Current  
Package  
3 V to 28 V  
0.6 V to VIN x 0.75  
200 kHz to 1 MHz  
6 A  
• -40 °C to +125 °C operating junction temperature  
• Output voltage tracking  
MLP55-32L  
APPLICATIONS  
Note  
External divider network needed  
• Point of load regulation for low-power processors,  
network processors, DSPs, FPGAs, and ASICs  
• Low voltage, distributed power architectures with 5 V or  
12 V, or 24 V rails  
DESCRIPTION  
The SiC401, SiC402, and SiC403 are high frequency  
voltage-mode constant-on-time (CM-COT) synchronous  
buck regulators with integrated high-side and low-side  
power MOSFETs. The SiC403 is capable of 6 A continuous  
current, the SiC402 is capable of 10 A and the SiC401 15 A.  
These regulators produce an adjustable output voltage  
which in standard setup can output 5 V down to 0.6 V  
and with the VOUT divider network 75 % of VIN down to  
0.6 V to accommodate a variety of applications, including  
computing, consumer electronics, telecom, and industrial.  
• Computing, broadband, networking, LAN / WAN, optical,  
test, and measurement  
• A / V, high density cards, storage, DSL, STB, DVR, DTV,  
industrial PC  
ORDERING INFORMATION  
BOARD PART NUMBER  
MAX. OUTPUT CURRENT  
SiC403DB-LC  
6 A  
SiC402DB-HC  
10 A  
15 A  
The CM-COT architecture delivers ultra-fast transient  
response with minimum output capacitance and tight ripple  
regulation at very light load. The parts are stable with any  
capacitor type and no ESR network is required for loop  
stability. The regulator integrates a full protection feature  
set, it also has UVLO for the input rail and an internal  
soft-start.  
SiC401DB-HC  
Notes  
LC - low current inductor, HC - high current inductor  
The only difference between HC and LC board is the O / P  
inductor size  
The SiC40X family is available in lead (Pb)-free power  
enhanced 5 mm x 5 mm MLP55-32L package.  
Revision: 17-Nov-14  
Document Number: 62923  
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  
SiC401, SiC402, SiC403  
www.vishay.com  
SPECIFICATIONS  
Vishay Siliconix  
Output Voltage Sense  
VOUT_SENSE, GNDOUT_SENSE (P4): This allows the user to  
measure the voltage at the output of the regulator and  
remove any losses generated due to the connections, from  
the measurement. This can also be used by an active load  
with sense capability.  
This reference board allows the end user to evaluate the  
SiC401, SiC402, or the SiC403 chip for its features and all  
functionalities.  
It can also be a reference design for a user’s application.  
PGD (P9): Is an open drain output and is pulled up with a  
10 kΩ resistor to VIN. When FB or VOUT are within -10 % to  
+20 % percent of the set voltage this pin will go HI to  
indicate the output is okay. The pin will also follow EN/PSV  
condition switching LO if the IC is disabled.  
CONNECTION AND SIGNAL / TEST POINTS  
Power Sockets  
VIN, GND (P1): Input voltage source with VIN to be positive.  
Connect to a voltage source:  
- SiC401A/BCD - 3 V to 17 V  
- SiC402A/BCD - 3 V to 28 V  
- SiC403A/BCD - 3 V to 28 V  
POWER UP PROCEDURE  
To turn-on the reference board, apply 12 V to VIN with the  
P6 jumper is in Position 1. If the P7 jumper is in place the  
board will come up in power save mode, if not in place then  
constant PWM will be observed.  
VOUT, GND (P3): Output voltage with VOUT to be positive.  
Connect to a load that draws no more than:  
• SiC401A/BCD - 15 A  
When applying higher than 12 V to the input it is reasonable  
to install a RC snubber from LX to GND. There are place  
holders on the reference board R9 and C11 for the snubber.  
Values of 10 Ω and 1 nF are a reasonable starting point.  
• SiC402A/BCD - 10 A  
• SiC403A/BCD - 6 A  
5 V, GND (P5): External 5 V voltage source with 5 V to be  
positive. Connect to a 5 V source when this option is  
selected.  
ADJUSTMENTS TO THE REFERENCE BOARD  
OUTPUT VOLTAGE ADJUSTMENT  
SELECTION JUMPERS  
If a different output voltage is needed, simply change the  
value of VOUT and solve for R12 based on the following  
formula:  
Mode Select  
P7: This is a 2 way header which allows the user to select  
either power save mode or constant PWM mode.  
VOUT - VFB  
-----------------------------  
R12 = R13 x  
OPEN - forced PWM, the pin is floating  
VFB  
SHORT - power save mode, the pin is at 5 V  
Where VFB is 0.6 V for the SiC40X.  
A third option is available whereby pin 2 is shorted to 0 V to  
disable the part.  
CHANGING SWITCHING FREQUENCY  
UVLO Option  
The following equation illustrates the relationship between  
ON-time, VIN, VOUT, and RON value:  
P8: This is a 2 way header that will enable the UVLO function  
when selected. The divider resistors R1 and R2 can be  
changed depending on the required turn on voltage level,  
the pin requires a voltage greater than 3 V to enable.  
k
--------------------------------  
RtON  
=
25 pF x FSW  
OPEN - UVLO disabled  
SHORT - UVLO enabled  
Where k equals 1 when VDD is greater than 3.6 V. When k is  
less than 3.6 V and VIN is greater than ((VDD - 1.75 V) x 10),  
k is shown by the following equation:  
VDD Select  
P6: This is a 3 way header that will enable the user to select  
between internal LDO and an external 5 V supply.  
(VDD - 1.75 V) x 10  
----------------------------------------------------  
k =  
VIN  
Position 1 - SHORT PIN 1-2 - internal LDO  
Position 2 - SHORT PIN 2-3 - external 5 V  
The maximum Rton value allowed is shown:  
VIN min.  
SIGNALS AND TEST LEADS  
------------------  
=
RtON MAX.  
15 μA  
Input Voltage Sense  
VIN_SENSE, GNDIN_SENSE (P2): This allows the user to  
measure the voltage at the input of the regulator and remove  
any losses generated due to the, connections from the  
measurement. This can also be used by a power source with  
sense capability.  
Revision: 17-Nov-14  
Document Number: 62923  
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  
SiC401, SiC402, SiC403  
www.vishay.com  
Vishay Siliconix  
Other than the inductance the DCR and saturation current  
parameters are key values. The DCR causes an I2R loss  
which will decrease the system efficiency and generate  
heat. The saturation current has to be higher than the  
maximum output current plus 1/2 the ripple current. In over  
current condition the inductor current may be very high. All  
this needs to be considered when selecting the inductor.  
OUTPUT RIPPLE VOLTAGE  
Output ripple voltage is measured with a tip and barrel  
measurement across COUT. Typically output ripple voltage  
is set to 3 % to 5 % of the output voltage, but an all ceramic  
output solution can bring output ripple voltage to a much  
lower level since the ESR of ceramics is very small.  
If ceramics or a combination of ceramics and bulk  
capacitors are used it may be necessary to add a voltage  
injection network.  
On this board Vishay IHLP series inductors are used to meet  
cost requirement and high efficiency, a part that utilizes a  
material that has incredible saturation levels compared to  
competing products.  
VOLTAGE INJECTION NETWORK  
This is the network seen placed across the output inductor  
in the schematic consisting of R8, C9, and C10. A quick  
method to add or remove injection is to reduce or increase  
R4.  
OUTPUT CAPACITOR SELECTION  
Voltage rating, ESR, transient response, overall PCB area  
and cost are requirements for selecting output capacitors.  
The types of capacitors and there general advantages and  
disadvantages are covered next.  
The time constant of the inductor (τIND) and voltage injection  
network are as follows:  
Electrolytic have high ESR, dry out over time so ripple  
current rating must be examined and have slower transient  
response, but are fairly inexpensive for the amount of overall  
capacitance.  
L
DCR  
------------  
τIND  
=
and  
τRIN = RL x CL  
Tantalums can come in low ESR varieties and high  
capacitance value for its overall size, but they fail short when  
damaged and also have slower transient response.  
In (1) the recommended value of C9 = 10 nF.  
The injection voltage can be checked for magnitude next  
using the following equation,  
Ceramics have very low ESR, fast transient response and  
overall small size, but come in low capacitance values  
compared to the others above. A combination of technology  
is sensible.  
1
----------  
VINJ = (VIN MIN. - VOUT) x 1 -  
t
---------  
eτ  
RIN  
LDO SETTING  
In order that the LDO is programmed to 5 V the divider  
resistors from the VDD pin to the FBL pin need to be set in  
order that 0.75 V is present on FBL. They can be set as  
Where t is the ON period. This required magnitude is  
> 20 mVpp for stable operation, when the ripple injection  
voltage is smaller than 20 mVpp then double pulsing may be  
observed as the thresholds are not correctly triggered within  
the SiC40X.  
follows:  
VDD x R8  
------------------------  
=
VLDO  
R2 + R8  
The injection voltage will be DC decoupled from the FB pin  
via a capacitor, the calculation for this part is as follows:  
ENABLE PIN VOLTAGE  
1
3
--------- -------------------------------  
C10  
=
x
The ENL pin will need to be set to enable the LDO. This pin  
accepts an input voltage up to VIN however it can also be set  
as an under voltage trigger. The operation for this pin can be  
seen in Table 1.  
R12 2 x π x FSW  
--------  
R13  
INDUCTOR SELECTION  
The choice of inductor is specific to each application and  
quickly determined with the following equations:  
TABLE 1  
EN/PSV  
Disabled  
Enabled  
Disabled  
Enabled  
Disabled  
Enabled  
ENL  
LDO  
Off  
Off  
On  
On  
On  
On  
SWITCHER  
VOUT  
Low, < 0.4 V  
Off  
On  
Off  
Off  
Off  
On  
-------------------------------------  
=
tON  
VIN MAX. x fSW  
Low, < 0.4 V  
1 V < High < 2.6 V  
1 V < High < 2.6 V  
High > 2.6 V  
(VIN - VOUT) x tON  
--------------------------------------------------  
IOUT MAX. x k2  
L =  
Where k2 is a percentage of maximum output current ripple  
required. The designer can quickly make a choice if the  
ripple percentage is decided, usually no more than 30 %  
however higher or lower percentages of IOUT can be  
acceptable depending on application.  
High > 2.6 V  
Revision: 17-Nov-14  
Document Number: 62923  
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  
SiC401, SiC402, SiC403  
www.vishay.com  
Vishay Siliconix  
The UVLO will be activated if the voltage present at this pin  
is below 2.6 V. This can be set using the following equation.  
If under voltage is not a consideration then this can be  
connected to VIN. The divider values for this pin can be set  
using the following equation:  
Where ILPK is the peak inductor current, IMAX. is the  
maximum output current, dILOAD is the current step in μF  
and VPK is the peak voltage, the output voltage summed  
with the specified over and under shoot.  
VIN x R9  
INPUT CAPACITANCE  
----------------------  
=
VENL  
R1 + R9  
In order to keep the design compact and minimize parasitic  
elements, ceramic capacitors will be chosen. The initial  
requirement for the input capacitance is decided by the  
maximum input voltage, 16 V in this case however a 35 V  
rated capacitor will be chosen of the X7R variety. The  
footprint will be a compact 1206.  
SOFT START SETTING  
Soft start is a useful function helping to limit the current draw  
from the source at switch on. This is simply set with a  
ceramic capacitor using the following equation:  
tSS  
In order to determine the minimum capacitance the input  
voltage ripple needs to be specified; VCINPP 150 mV is a  
suitable starting point. This magnitude is determined by the  
final application specification. The input current needs to be  
determined for the lowest operating input voltage:  
IOUT  
---------------------  
=
CSS  
500 000  
A 2. 2 nF capacitor will provide ~ 1 ms soft start time.  
BOOTSTRAP CIRCUIT  
-----------  
ICIN(RMS)  
=
x
VOUT x (VIN - VOUT)  
A bootstrap capacitor of 100 nF will be sufficient for this  
circuit with switching frequencies from 200 kHz to 500 kHz.  
A series resistor has been added in order to slow down the  
low side switch in and minimize overshoot without adding a  
snubber. This is user adjustable.  
VIN  
The minimum input capacitance can then be found,  
DC - (1 - DC)  
--------------------------------------  
x
CIN MIN. = IOUT  
VCINPP x FSW  
VDD DECOUPLING  
HIGH OUTPUT VOLTAGE OPERATION  
The VDD pin will need to be decoupled in order to provide a  
stable voltage internally and externally. The value for this  
capacitor is recommended as 1 μF.  
For the SiC40X family the recommended maximum output  
voltage of no more than 75 % of VIN.  
For applications where an output voltage greater than 5 V is  
required a resistive network should be used to step down  
the output voltage in order to provide the VOUT pin with  
4.5 V.  
CURRENT LIMIT RESISTOR  
The current limit is set by placing a resistor between pins  
LXS and ILIM. The values can be found using the following  
equations.  
R2 x (VOUT - VOUT PIN  
)
-------------------------------------------------------------  
R1 =  
VOUT PIN  
SiC401:  
For example, if an output voltage of VOUT = 8.5 V is  
required, setting R2 = 10 kΩ and VOUT PIN = 4.5 V results in  
R1 = 8870 Ω.  
RILIM = 792 x ILIM x [0.101 x (5 V - VDD) + 1]  
SiC402:  
The switching frequency will also need recalculating using a  
RILIM = 446 x ILIM x [0.099 x (5 V - VDD) + 1]  
V
OUT PIN magnitude of 4.5 V.  
VOUT PIN  
------------------------  
tON x VIN  
SiC403:  
FSW  
=
RILIM = 1176 x ILIM x [0.112 x (5 V - VDD) + 1]  
OUTPUT CAPACITANCE  
LX  
VOUT  
The output capacitance will be determined by the ripple  
voltage requirement. Voltage mode COT topology can work  
with very small values of capacitor ESR however a ripple  
injection network will also be required for stable operation.  
R1  
R2  
SiC40X  
COUT  
VOUT PIN  
The overall capacitance needs to be calculated next. The  
following equations are used to calculate the size needed to  
meet a transient load response:  
ILPK = IMAX. + 0.5 x IRIPPLE MAX,  
Fig. 1 - Resistor Divider Network Allows 4.5 V at the VOUT PIN  
ILPK  
------------- -----------------  
x dt  
IMAX.  
L x  
-
VOUT dILOAD  
--------------------------------------------------------------  
x
COUT MIN. = ILPK  
2 x (VPK - VOUT  
)
Revision: 17-Nov-14  
Document Number: 62923  
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  
SiC401, SiC402, SiC403  
www.vishay.com  
Vishay Siliconix  
7. If a voltage injection network is needed then place it near  
to the inductor LX node.  
LAYOUT CONSIDERATIONS  
The SiC40x family of footprint compatible 15 A, 10 A, and  
6 A products offers the designer a scalable buck regulator  
solution. If the below layout recommendations are followed,  
the same layout can be used to cover a wide range of output  
currents and voltages without any changes to the board  
design and only minor changes to the component values in  
the schematic.  
8. PGND can be used on internal layers if the resistance of  
the PCB is to be small; this will also help remove heat.  
Use extra vias if needed but be mindful to allow a path  
between the vias.  
9. A quiet plane should be employed for the AGND, this is  
placed under the small signal passives. This can be  
placed on multiple layers if needed for heat removal. This  
should be connected to the PGND plane near to the input  
GND at one connection only of at least 1mm width.  
The reference design has a majority of the components  
placed on the top layer. This allows for easy assembly and  
straightforward layout.  
10. The LX copper can also be used on multiple layers, use  
a number of vias.  
Figure 2 outlines the pointers for the layout considerations  
and the explanations follow.  
11. The copper area beneath the inductor has been removed  
(on all layers) in this design to reduce the inductive  
coupling that occurs between the inductor and the GND  
trace. No other voltage planes should be placed under  
this area.  
Fig. 2 - Resistor Divider Network Allows 4.5 V at the VOUT PIN  
1. Place input ceramic capacitors close to the voltage input  
pins with a small 10 nF / 100 nF placed as close as the  
design rules will allow. This will help reduce the size of  
the input high frequency current loop and consequently  
reduce the high frequency ripple noise seen at the input  
and the LX node.  
2. Place the setup and control passive devices logically  
around the IC with the intention of placing a quiet ground  
plane beneath them on a secondary layer.  
3. It is advisable to use ceramic capacitors at the output to  
reduce impedance. Place these as close to the IC PGND  
and output voltage node as design will allow. Place a  
small 10 nF / 100 nF ceramic capacitor closest to the IC  
and inductor loop.  
4. The loop between LX, VOUT and the IC GND should be as  
compact as possible. This will lower series resistance  
and also make the current loop smaller enabling the high  
frequency response of the output capacitors to take  
effect.  
5. The output impedance should be small when high  
current is required; use high current traces, multiple  
layers can be used with many vias.  
6. Use many vias when multiple layers are involved. This  
will have the effect of lowering the resistance between  
layers and reducing the via inductance of the PCB nets.  
Revision: 17-Nov-14  
Document Number: 62923  
5
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  
SiC401, SiC402, SiC403  
www.vishay.com  
Vishay Siliconix  
PCB LAYOUT  
Fig. 3 - Top Layer  
Fig. 5 - Inner Layer 2  
Fig. 4 - Inner Layer 1  
Fig. 6 - Bottom Layer  
Revision: 17-Nov-14  
Document Number: 62923  
6
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  
SiC401, SiC402, SiC403  
www.vishay.com  
Vishay Siliconix  
SCHEMATIC - COMMON TO ALL BOARDS  
Revision: 17-Nov-14  
Document Number: 62923  
7
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  
SiC401, SiC402, SiC403  
www.vishay.com  
Vishay Siliconix  
BILL OF MATERIAL FOR SIC401 (VIN = 12 V, VOUT = 1.5 V, FSW = 500 kHz)  
ITEM  
QTY  
REFERENCE  
PCB FOOTPRINT  
VALUE VOLTAGE  
PART NUMBER  
MANUFACTURER  
TDK  
1
2
3
4
5
6
2
2
3
1
2
1
C1, C2  
1206  
1206  
0402  
0402  
0402  
0402  
Omit  
22 μF  
10 nF  
2.2 μF  
2.2 nF  
100 nF  
35 V  
35 V  
50 V  
10 V  
50 V  
35 V  
C3216X5R1V226M160AC  
C3216X5R1V226M160AC  
GRM155R71H103KA88D  
C0402C225M8PACTU  
C3, C4  
TDK  
C5, C9, C12  
C6  
Murata  
Kemet  
C7, C10  
C8  
GRM155R71H222KA01D  
CGA2B3X7R1V104K050BB  
Murata  
Vishay  
C13, C14, C15, C16,  
C17  
7
5
1206  
47 μF  
35 V  
GRM31CR61A476ME15L  
Murata  
8
3
2
4
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
C18, C19, C20  
1206  
7343  
Omit  
Omit  
-
35 V  
GRM31CR61A476ME15L  
-
Murata  
-
9
C21, C22  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
P1, P3, P9, P10  
Banana Jack  
Header-2  
Header-3  
IHLP5050  
0402  
575-4K-ND  
Keystone  
AMP (TE)  
Samtec  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
-
P2, P4, P5, P7, P8  
-
826926-2  
P6  
L1  
-
HTSW-103-08-T-S  
IHLP5050FDER1R0  
CRCW0402249KFKED  
CRCW0402100KFKED  
CRCW0402169KFKED  
CRCW040230K0FKED  
CRCW04025K11FKED  
CRCW040276K8FKED  
CRCW040210R0FKEA  
CRCW040210K0FKED  
-
1 μH  
249K  
100K  
169K  
30K  
5K11  
76K8  
10R  
10K  
Omit  
0R  
R1  
R2  
0402  
R3  
0402  
R4  
0402  
R5  
0402  
R6  
0402  
R7  
0402  
R8  
0402  
R9  
0805  
R10  
R11  
R12  
R13  
R14  
R15  
U1  
0402  
CRCW04020000Z0ED  
-
0402  
Omit  
1K54  
1K  
0402  
CRCW04021K54FKED  
CRCW0402249KFKED  
CRCW040210R0FKEA  
CRCW040210K0FKED  
-
0402  
0402  
10R  
10K  
SIC401  
0402  
MLP55-33  
KEY  
Only needed for reference board  
Revision: 17-Nov-14  
Document Number: 62923  
8
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  
SiC401, SiC402, SiC403  
www.vishay.com  
Vishay Siliconix  
BILL OF MATERIAL FOR SIC402 (VIN = 12 V, VOUT = 1.5 V, FSW = 500 kHz)  
ITEM  
QTY  
REFERENCE  
PCB FOOTPRINT  
VALUE VOLTAGE  
PART NUMBER  
MANUFACTURER  
TDK  
1
2
3
4
5
6
7
2
2
3
1
2
1
3
C1, C2  
1206  
1206  
0402  
0402  
0402  
0402  
1206  
Omit  
22 μF  
10 nF  
2.2 μF  
2.2 nF  
100 nF  
47 μF  
35 V  
35 V  
50 V  
10 V  
50 V  
35 V  
35 V  
C3216X5R1V226M160AC  
C3216X5R1V226M160AC  
GRM155R71H103KA88D  
C0402C225M8PACTU  
C3, C4  
TDK  
C5, C9, C12  
C6  
Murata  
Kemet  
C7, C10  
C8  
GRM155R71H222KA01D  
CGA2B3X7R1V104K050BB  
GRM31CR61A476ME15L  
Murata  
Vishay  
C13, C14, C15  
Murata  
C16, C17, C18, C19,  
C20  
8
5
1206  
Omit  
35 V  
GRM31CR61A476ME15L  
Murata  
9
2
4
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
C21, C22  
7343  
Banana Jack  
Header-2  
Header-3  
IHLP4040  
0402  
Omit  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
P1, P3, P9, P10  
575-4K-ND  
Keystone  
AMP (TE)  
Samtec  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
-
P2, P4, P5, P7, P8  
-
826926-2  
P6  
L1  
-
HTSW-103-08-T-S  
IHLP4040DZER1R0  
CRCW0402249KFKED  
CRCW0402100KFKED  
CRCW0402169KFKED  
CRCW040230K0FKED  
CRCW04025K11FKED  
CRCW040276K8FKED  
CRCW040210R0FKEA  
CRCW040210K0FKED  
-
1 μH  
249K  
100K  
169K  
30K  
5K11  
76K8  
10R  
10K  
Omit  
0R  
R1  
R2  
0402  
R3  
0402  
R4  
0402  
R5  
0402  
R6  
0402  
R7  
0402  
R8  
0402  
R9  
0805  
R10  
R11  
R12  
R13  
R14  
R15  
U1  
0402  
CRCW04020000Z0ED  
-
0402  
Omit  
1K54  
1K  
0402  
CRCW04021K54FKED  
CRCW0402249KFKED  
CRCW040210R0FKEA  
CRCW040210K0FKED  
-
0402  
0402  
10R  
10K  
SIC402  
0402  
MLP55-33  
KEY  
Only needed for reference board  
Revision: 17-Nov-14  
Document Number: 62923  
9
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  
SiC401, SiC402, SiC403  
www.vishay.com  
Vishay Siliconix  
BILL OF MATERIAL FOR SIC403 LC (VIN = 12 V, VOUT = 1.5 V, FSW = 500 kHz)  
ITEM  
QTY  
REFERENCE  
C1, C2, C3  
C4  
PCB FOOTPRINT  
VALUE VOLTAGE  
PART NUMBER  
MANUFACTURER  
TDK  
1
2
3
4
5
6
7
3
1
3
1
2
1
2
1206  
1206  
0402  
0402  
0402  
0402  
1206  
Omit  
22 μF  
10 nF  
2.2 μF  
1 nF  
35 V  
35 V  
50 V  
10 V  
50 V  
35 V  
35 V  
C3216X5R1V226M160AC  
C3216X5R1V226M160AC  
GRM155R71H103KA88D  
C0402C225M8PACTU  
TDK  
C5, C9, C12  
C6  
Murata  
Kemet  
C7, C10  
C8  
GRM155R71H102KA01D  
CGA2B3X7R1V104K050BB  
GRM31CR61A476ME15L  
Murata  
100 nF  
47 μF  
Vishay  
C13, C14  
Murata  
C15, C16, C17  
C18, C19, C20  
8
6
1206  
Omit  
35 V  
GRM31CR61A476ME15L  
Murate  
9
2
4
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
C21, C22  
7343  
Banana Jack  
Header-2  
Header-3  
IHLP3232  
0402  
Omit  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
P1, P3, P9, P10  
575-4K-ND  
Keystone  
AMP (TE)  
Samtec  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
Vishay  
-
P2, P4, P5, P7, P8  
-
826926-2  
P6  
L1  
-
HTSW-103-08-T-S  
IHLP3232DZER2R2  
CRCW0402249KFKED  
CRCW0402100KFKED  
CRCW0402169KFKED  
CRCW040230K0FKED  
CRCW04025K11FKED  
CRCW040276K8FKED  
CRCW040210R0FKEA  
CRCW040210K0FKED  
-
2.2 μH  
249K  
100K  
169K  
30K  
5K11  
76K8  
10R  
10K  
Omit  
0R  
R1  
R2  
0402  
R3  
0402  
R4  
0402  
R5  
0402  
R6  
0402  
R7  
0402  
R8  
0402  
R9  
0805  
R10  
R11  
R12  
R13  
R14  
R15  
U1  
0402  
CRCW04020000Z0ED  
-
0402  
Omit  
1K54  
1K  
0402  
CRCW04021K54FKED  
CRCW0402249KFKED  
CRCW040210R0FKEA  
CRCW040210K0FKED  
-
0402  
0402  
10R  
10K  
SIC403  
0402  
MLP55-33  
KEY  
Only needed for reference board  
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon  
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and  
reliability data, see www.vishay.com/ppg?62923.  
Revision: 17-Nov-14  
Document Number: 62923  
10  
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  

相关型号:

IHLP3232DZER2R2M01

General Fixed Inductor, 1 ELEMENT, 2.2 uH, COMPOSITE-CORE, GENERAL PURPOSE INDUCTOR, SMD, CHIP, 3232, GREEN
VISHAY

IHLP3232DZER2R2M11

FIXED IND 2.2UH 14.5A 9.41 MOHM
VISHAY

IHLP3232DZER2R2M5A

FIXED IND 2.2UH 11.5A 12.5 MOHM
VISHAY

IHLP3232DZER330M11

Low Profile, High Current IHLP? Inductors
VISHAY

IHLP3232DZER330M5A

General Purpose Inductor, 33uH, 20%, Iron-Core, 3433,
VISHAY

IHLP3232DZER3R3M01

General Fixed Inductor, 1 ELEMENT, 3.3 uH, COMPOSITE-CORE, GENERAL PURPOSE INDUCTOR, SMD, CHIP, 3232, GREEN
VISHAY

IHLP3232DZER3R3M11

FIXED IND 3.3UH 10.5A 14.9 MOHM
VISHAY

IHLP3232DZER3R3M5A

FIXED IND 3.3UH 11.3A 16.48 MOHM
VISHAY

IHLP3232DZER4R7M01

FIXED IND 4.7UH 7.25A 32 MOHM
VISHAY

IHLP3232DZER4R7M11

FIXED IND 4.7UH 8A 22.6 MOHM SMD
VISHAY

IHLP3232DZER4R7M5A

FIXED IND 4.7UH 7.2A 28.46 MOHM
VISHAY

IHLP3232DZER5R6M01

FIXED IND 5.6UH 6.8A 35.5 MOHM
VISHAY