NCV97310MW33GEVB
NCV97310 Evaluation Board
User'sManual
Description
The NCV97310 is 3-output regulator consisting of
a low-Iq battery-connected 3 A 2 MHz non-synchronous
switcher and two low-voltage 1.5 A 2 MHz synchronous
switchers; all using integrated power transistors.
The high-voltage switcher is capable of converting
a 4.1 V to 18 V battery input to a 5 V or 3.3 V output at
a constant 2 MHz switching frequency, delivering up to 3 A.
In overvoltage conditions up to 36 V, the switching
frequency folds back to 1 MHz; in load dump conditions up
to 45 V the regulator shuts down.
The output of the battery-connected buck regulator serves
as the low voltage input for the 2 synchronous switchers. Each
downstream output is adjustable from 1.2 V to 3.3 V, with
a 1.5 A current limit and a constant 2 MHz switching
frequency. Each switcher has independent enable and reset
pins, giving extra power management flexibility.
For low-Iq operating mode the low-voltage switchers are
disabled, and the standby rail is supplied by a low-Iq LDO
(up to 150 mA) with a typical Iq of 30 mA. The LDO
regulator is in parallel to the high-voltage switcher, and is
activated when the switcher is forced in standby mode.
All 3 SMPS outputs use peak current mode control with
internal slope compensation, internally-set soft-start,
battery undervoltage lockout, battery overvoltage
protection, cycle-by-cycle current limiting, hiccup mode
short-circuit protection and thermal shutdown. An error flag
is available for diagnostics.
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EVAL BOARD USER’S MANUAL
Key Features
• Low Quiescent Current in Standby Mode
• 2 Microcontroller Enabled Low Voltage Synchronous
Buck Converters
• Large Conversion Ratio of 18 V to 3.3 V Battery
Connected Switcher
• Wide Input of 4.1 to 45 V with Undervoltage Lockout
(UVLO)
• Fixed Frequency Operation Adjustable from 2.0 to
•
•
•
•
•
2.6 MHz
Internal 1.5 ms Soft-starts
Cycle-by-Cycle Current Limit Protections
Hiccup Overcurrent Protections (OCP)
Individual Reset Pins with Adjustable Delays
These Devices are Pb-Free, Halogen Free/BFR Free
and are RoHS Compliant
Typical Applications
• Infotainment, Body Electronics, Telematics, ECU
Figure 1. Evaluation Board Photo
© Semiconductor Components Industries, LLC, 2014
January, 2014 − Rev. 0
1
Publication Order Number:
EVBUM2223/D
NCV97310MW33GEVB
SEL
STBYB
VDRV
VDD
VINL
LOGIC
SW1
COMP1
RSTB
RMIN
EN
BST1
REGULATOR 1
3V3
STEP DOWN
VBAT
VDRV1
LINEAR
REGULATOR
RSTB1
VOUT
Master Enable
GND1
VDRV
BST 2
REGULATOR 2
1V2 ... 3V3
STEP DOWN
VIN2
VDRV 2
SW2
FB 2
EN2
RSTB
RSTB2
GND2
BST 3
REGULATOR 3
1V2...3V3
STEP DOWN
VIN3
SW3H
SW3L
FB3
EN3
RSTB
GND3
TEMP
OT
WARNING
VIN _UVLO
VIN _OV
RSTB3
OSC
ERR
RSTB1
RSTB2
RSTB3
ROSC
RMOD
RDEPTH
ERRB
Figure 2. NCV97310 Block Diagram
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NCV97310MW33GEVB
TYPICAL APPLICATION
C OUT1
C BST1
D1
L1
R FB2D
C DRV1
1
C IN1
RDEPTH
R MOD
CCOMP1 RCOMP1
RFB2U
25
SW 1 VDRV 1 BST1
VBAT
VINL
VOUT
FB2
RMIN
BST2
GND 2
SW 2
STBYB
VIN2
RDEPTH
VIN3
RMOD
VDRV 2
RSTB1
SW 3H
COMP 1
SW3L
ROSC
GND3
ERRB
9
EN2
RSTB 2 GND1 RSTB3
FB3
EN3
BST3
C OUT2
24
EN
8
R OSC
C BST2
RMIN
32
VBAT
VOUT1
L2
C IN2
C DRV2
L3
COUT3
17
16
R FB3U
C BST3
Figure 3. Typical Application
Table 1. EVALUATION BOARD TERMINALS
Pin Name
Function
VBAT
Positive dc input voltage
GND
Common dc return
VOUT1
Positive 3.3 V dc output voltage (LDO/Switcher 1)
VOUT2
Positive DC output voltage (Switcher 2)
VOUT3
Positive DC output voltage (Switcher 3)
EN
STBYB
Master enable input. Includes jumper J3 to connect to VBAT.
Standby enable input. Includes jumper J4 to connect to VBAT.
EN2
Switcher 2 enable input. Includes jumper J6 to connect to VOUT1.
EN3
Switcher 3 enable input. Includes jumper J5 to connect to VOUT1.
ERRB
Error flag combining temperature and input and output voltage sensing.
RST1B
Reset with adjustable delay. Goes low when the VOUT1 is out of regulation.
RST2B
Reset with adjustable delay. Goes low when the VOUT2 is out of regulation.
RST3B
Reset with adjustable delay. Goes low when the VOUT3 is out of regulation.
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3
VOUT2
VOUT3
NCV97310MW33GEVB
Table 2. ABSOLUTE MAXIMUM RATINGS (Voltages are with respect to GND)
Rating
Value
Unit
Dc Supply Voltage (VBAT, EN, STBYB)
−0.3 to 36
V
Dc Supply Voltage (VIN2, VIN3)
−0.3 to 12
V
Dc Supply Voltage (RSTB1, RSTB2,
RSTB3, ERRB, EN2, EN3)
−0.3 to 6
V
−55 to 150
°C
Storage Temperature Range
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
Table 3. ELECTRICAL CHARACTERSITICS (TA = 25°C, 4.5 ≤ VIN ≤ 18 V, IOUT ≤ 2 A, unless otherwise specified)
Characteristic
Conditions
Typical Value
Unit
Output Voltage (VOUT1)
3.3
V
Output Voltage (VOUT2)
1.8
V
Output Voltage (VOUT3)
1.2
V
REGULATION
Line Regulation (VOUT1)
IOUT1 = 1.0 A
0.03
%
Line Regulation (VOUT2)
IOUT2 = 1.0 A
0.01
%
Line Regulation (VOUT3)
IOUT3 = 1.0 A
0.001
%
Load Regulation (VOUT1)
VBAT = 13.2 V
0.3
%
Load Regulation (VOUT2)
VBAT = 13.2 V
0.02
%
Load Regulation (VOUT3)
VBAT = 13.2 V
0.03
%
Switching Frequency
2.0
MHz
Soft-start Time
1.4
ms
50 kW ≥ ROSC ≥ 10 kW
2.0 to 2.6
MHz
Peak Current Limit (VOUT1)
STBYB = 0 V
0.2
A
Peak Current Limit (VOUT1)
STBYB = 5 V
4.4
A
Peak Current Limit (VOUT2)
2.9
A
Peak Current Limit (VOUT3)
2.9
A
SWITCHING
ROSC Frequency Range
CURRENT LIMIT
PROTECTION
Input Undervoltage Lockout (UVLO)
VBAT Decreasing
3.9
V
Input Overvoltage Protection
VBAT Increasing
36
V
Thermal Warning
TJ Rising
150
°C
Thermal Shutdown
TJ Rising
170
°C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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GND0
1
VBAT
1
VBAT_1
VBAT
RST1B
Figure 4. NCV97310GEVB 3.3 V Board Schematic
CIN2
CIN3
R6
10K
VOUT1
R3
10K
VOUT1
RST2B
J2
J1
R5
10K
ERRB
R4
10K
VOUT1
COMP1
RST1B
STBYB
EN
2.2 uF
CIN4
VOUT1
4.7 uF 4.7 uF 1 uF
CIN1
RST3B
Place CIN5 on
bottom of PCB
1.0 uH
CIN0
CIN5
100 uF
4.7 uF
L0
Place CIN0, L0, CIN1, CIN2 on VBAT side.
Place CIN3 close to VINL (pin 29)
Place CIN4 close to VBAT (pin 1)
2
1
2
1
RST3B
RST2B
ERRB
22 pF
CCOMP2
COMP1
RDEPTH
DNP
RMOD
DNP
TP2
COMP1
RST1
RMOD
Place GND near
ERRB for logic
reference.
VOUT1
1 J4 2
330 pF
CCOMP1
ROSC
DNP
GND
31
RDEPTH
STBY
EN
VBAT
U1
32
ROSC 8
ROSC
RCOMP1
TP3
12.4K
7
6
5
4
3
STBYB
TP1
2
1
DRV1
EN
VBAT_IC
VIND
D1
NRVB440MFS
EN2
EN2
CBST1
0.1 uF
50V
CDRV1
0.1 uF
4.7 uH
30
C3
0.1 uF
RFB2L
20.0K
NCV97310MW33R2G
BST1
RST2
11
BST2
RFB3L
DNP
R1
0.0
C1
100 pF
1
J3
100 pF
2
VOUT1
10.0
L3 1.0 uH
CSNB3
RSNB3
10 uF
10 uF
COUT31 COUT32
VOUT3
10 uF
10 uF
100 pF
10.0
VOUT2
VIN2
R7
0.0
VOUT1
(1.2 V)
VOUT3
(1.8 V)
1
1
1
1
to VIN2
VOUT2
4.7 uF
GND3
VOUT3
GND2
VOUT2
CO15 Place close
VIN2
Place close
1 uF to VIN2
CO14
VIN2
COUT21 COUT22
10 uF
L2 2.2 uH
CSNB2
RSNB2
SW2
CDRV2
0.47 uF
VIN2
EN3
CBST3
0.1 uF
SW3
SW3
SW2
10K
10 uF
CBST2
0.1 uF
10 uF
COUT11 COUT12 COUT13
100 pF
RFB2U
10K C2
RFB3U
17
18
19
20
21
22
23
24
R2
0.0
EN3
BST3
GND3
SW3L
SW3H
VDRV2
VIN3
VIN2
SW2
GND2
FB3
FB3
FB2
FB2
BST2 25
L1
29
VINL
GND1
12
EPAD 33
SW1
28
VOUT
RST3
13
SW1
ERR
9
27
FB2
FB3
14
VDRV1
EN2
10
26
NC
EN3
15
5
16
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BST3
SW1
GND1
1
VOUT1
1
(3.3 V)
VOUT1
NCV97310MW33GEVB
NCV97310MW33GEVB
Operational Guidelines
5. Connect a dc enable voltage, within the 2.0 V to
6 V range, between EN2 and GND. This will
power up switcher 2. You may use jumper J4 to
connect EN2 directly to VOUT1.
The VOUT2 signal should be 1.8 V.
6. Connect a dc enable voltage, within the 2.0 V to
6 V range, between EN3 and GND. This will
power up switcher 3. You may use jumper J3 to
connect EN3 directly to VOUT1.
The VOUT3 signal should be 1.2 V.
1. Connect a dc input voltage, within the 6.0 V to
36 V range, between VBAT and GND.
2. Connect a load (< 150 mA) between VOUT1 and
GND
3. Connect a dc enable voltage, within the 2.0 V to
36 V range, between EN and GND. This will
enable the internal LDO for low Iq mode. You
may use jumper J1 to connect EN directly to
VBAT.
a. The VOUT1 signal should be 3.3 V.
b. The VOUT2 signal should be disabled
(regardless of EN2 state) and read 0 V.
c. The VOUT3 signal should be disabled
(regardless of EN3 state) and read 0 V.
4. Connect a dc enable voltage, within the 2.0 V to
36 V range, between STBYB and GND. This will
exit low Iq mode and power up switcher 1. You
may use jumper J2 to connect STBYB directly to
VBAT.
The VOUT1 signal should still be 3.3 V. You
may now add a higher load to VOUT1.
Figure 5. NCV97310 Board Connections
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NCV97310MW33GEVB
APPLICATION INFORMATION
Output Voltage Selection
The voltage outputs for switcher 2 and switcher 3 are
adjustable and can be set with a resistor divider. The FB
reference for both switchers is 1.2 V.
Time Domain
Frequency Domain
Unmodulated
VOUT 2 (VOUT 3)
V
RUPPER
t
fc
3fc
5fc
7fc
9fc
t
fc
3fc
5fc
7fc 9fc
FBx = 1.2 V
V
RLOWER
The spread spectrum used in the NCV97310 is an
“up-spread” technique, meaning the switching frequency is
spread upward from the 2.0 MHz base frequency. For
example, a 5 % spread means that the switching frequency
is swept (spread) from 2.0 MHz up to 2.1 MHz in a linear
fashion – this is called the modulation depth. The rate at
which this spread takes place is called the modulation
frequency. For example, a 10 kHz modulation frequency
means that the frequency is swept from 2.0 MHz to 2.1 MHz
in 50 ms and then back down from 2.1 MHz to 2.0 MHz in
50 ms.
The upper resistor is set to 10 kW and is part of the
feedback loop. To maintain stability over all conditions, it is
recommended to change the only the lower feedback resistor
to set the output voltage. Use the following equation:
R LOWER + R UPPER
V FB
V OUT*V FB
Some common setups are listed below:
Desired
Output (V)
VREF (V)
RUPPER
(kW, 1%)
RLOWER
(kW, 1%)
1.2
1.2
10.0
NP
1.5
1.2
10.0
40.0
1.8
1.2
10.0
20.0
2.5
1.2
10.0
9.31
3.3
1.2
10.0
5.76
Spread Spectrum
In SMPS devices, switching translates to higher
efficiency. Unfortunately, the switching leads to a much
noisier EMI profile. We can greatly decrease some of the
radiated emissions with some spread spectrum techniques.
Spread spectrum is used to reduce the peak electromagnetic
emissions of a switching regulator.
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NCV97310MW33GEVB
The modulation depth and modulation frequency are each
set by 2 external resistors to GND. The modulation
frequency can be set from 5 kHz up to 50 kHz using
a resistor from the RMOD pin to GND. The modulation
depth can be set from 3% up to 30% of the nominal switching
frequency using a resistor from the RDEPTH pin to GND.
Please see the curves below for typical values:
Modulation Depth (%FSW)
Modulation Depth vs. RDEPTH
Modulation Frequency (kHz)
Modulation Frequency vs. RMOD
52.00
47.00
42.00
37.00
32.00
27.00
22.00
17.00
12.00
7.00
2.00
30.0%
25.0%
20.0%
15.0%
10.0%
5.0%
0.0%
0
10
20
30
40
50
60
RDEPTH (kW)
Spread spectrum is automatically turned off when there is
a short to GND or an open circuit on either the RMOD pin
or the RDEPTH pin. Please be sure that the ROSC pin is an
open circuit when using spread spectrum.
0
10
20
30
40
50
60
RMOD (kW)
TYPICAL PERFORMANCE
Efficiency
NCV97310 − SW1 Efficiency − 3.3 V
100%
90%
80%
70%
Efficiency
60%
50%
40%
30%
20%
VIN = 8.0 V
VIN = 13.2 V
10%
VIN = 18.0 V
0%
0
0.5
1
1.5
2
2.5
Output Current (A)
Figure 6. Efficiency for SW1 with a 3.3 V Output
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3
3.5
NCV97310MW33GEVB
NCV97310 − SW2 Efficiency − 1.8 V
100%
90%
80%
Efficiency
70%
60%
50%
40%
30%
VIN = 3.3 V
20%
VIN = 5.0 V
10%
0%
VIN = 8.0 V
0
0.5
1
1.5
2
2.5
Output Current (A)
Figure 7. Efficiency for SW2 with a 1.8 V Output
NCV97310 − SW3 Efficiency − 1.2 V
100%
90%
80%
Efficiency
70%
60%
50%
40%
30%
20%
VIN = 3.3 V
10%
0%
VIN = 5.0 V
0
0.5
1
1.5
Output Current (A)
Figure 8. Efficiency for SW3 with a 1.2 V Output
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2
2.5
NCV97310MW33GEVB
Line Regulation
NCV97310 − SW1 − 3.3 V − Line Regulation
2.00%
1.50%
Line Regulation
1.00%
0.50%
0.00%
−0.50%
IOUT = 100 mA
−1.00%
IOUT = 500 mA
IOUT = 1.0 A
IOUT = 2.0 A
−1.50%
IOUT = 3.0 A
−2.00%
0
5
10
15
20
25
30
Input Voltage (V)
Figure 9. Line Regulation for SW1 with a 3.3 V Output
NCV97310 − SW2 − 1.8 V − Line Regulation
0.10%
Line Regulation
0.05%
0.00%
IOUT = 100 mA
−0.05%
IOUT = 500 mA
IOUT = 1.0 A
IOUT = 2.0 A
−0.10%
3
4
5
6
7
Input Voltage (V)
Figure 10. Line Regulation for SW2 with a 1.8 V Output
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8
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NCV97310MW33GEVB
NCV97310 − SW3 − 1.2 V − Line Regulation
0.10%
Line Regulation
0.05%
0.00%
IOUT = 100 mA
−0.05%
IOUT = 500 mA
IOUT = 1.0 A
IOUT = 2.0 A
−0.10%
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Figure 11. Line Regulation for SW3 with a 1.2 V Output
Load Regulation
NCV97310 − SW1 Load Regulation − 3.3 V
0.50%
VIN = 8.0 V
0.40%
VIN = 13.2 V
VIN = 18.0 V
0.30%
Load Regulation
0.20%
0.10%
0.00%
−0.10%
−0.20%
−0.30%
−0.40%
0
0.5
1
1.5
2
2.5
Output Current (A)
Figure 12. Load Regulation for SW1 with a 3.3 V Output
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3
3.5
NCV97310MW33GEVB
NCV97310 − SW2 Load Regulation − 1.8 V
0.10%
VIN = 3.3 V
VIN = 5.0 V
VIN = 8.0 V
Load Regulation
0.05%
0.00%
−0.05%
−0.10%
0
0.5
1
1.5
2
2.5
Output Current (A)
Figure 13. Load Regulation for SW2 with a 1.8 V Output
NCV97310 − SW3 Load Regulation − 1.2 V
0.10%
VIN = 3.3 V
VIN = 5.0 V
Load Regulation
0.05%
0.00%
−0.05%
−0.10%
0
0.5
1
1.5
2
Output Current (A)
Figure 14. Load Regulation for SW3 with a 1.2 V Output
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2.5
GND0
1
VBAT
1
VBAT_1
VBAT
RST1B
CIN2
CIN3
R6
10K
VOUT1
R3
10K
VOUT1
RST2B
J2
J1
2
R5
10K
ERRB
R4
10K
VOUT1
COMP1
RST1B
STBYB
EN
2.2 uF
CIN4
VOUT1
4.7 uF 4.7 uF 1 uF
CIN1
RST3B
Place CIN5 on
bottom of PCB
1.0 uH
CIN0
CIN5
100 uF
4.7 uF
L0
Place CIN0, L0, CIN1, CIN2 on VBAT side.
Place CIN3 close to VINL (pin 29)
Place CIN4 close to VBAT (pin 1)
2
1
RST3B
RST2B
ERRB
22 pF
CCOMP2
COMP1
RDEPTH
DNP
RMOD
DNP
STBYB
EN
TP2
7
6
5
4
3
2
1
DRV1
COMP1
RST1
RMOD
Place GND near
ERRB for logic
reference.
VOUT1
1 J4 2
330 pF
ROSC
DNP
GND
31
RDEPTH
STBY
EN
VBAT
U1
32
ROSC 8
ROSC
RCOMP1
TP3
12.4K
TP1
CCOMP1
VBAT_IC
VIND
D1
NRVB440MFS
EN2
EN2
CBST1
0.1 uF
50V
CDRV1
0.1 uF
C3
0.1 uF
RFB2L
20.0K
NCV97310MW33R2G
11
1
4.7 uH
30
BST1
RST2
BST2
FB2
RFB3L
DNP
R1
0.0
C1
100 pF
1
J3
100 pF
2
VOUT1
10.0
L3 1.0 uH
CSNB3
RSNB3
10 uF
10 uF
COUT31 COUT32
VOUT3
10 uF
10 uF
100 pF
10.0
VOUT2
VIN2
R7
0.0
VOUT1
(1.2 V)
VOUT3
(1.8 V)
1
1
1
1
to VIN2
VOUT2
4.7 uF
GND3
VOUT3
GND2
VOUT2
CO15 Place close
VIN2
Place close
1 uF to VIN2
CO14
VIN2
COUT21 COUT22
10 uF
L2 2.2 uH
CSNB2
RSNB2
SW2
CDRV2
0.47 uF
VIN2
EN3
CBST3
0.1 uF
SW3
SW3
SW2
10K
10 uF
CBST2
0.1 uF
10 uF
COUT11 COUT12 COUT13
100 pF
RFB2U
10K C2
RFB3U
17
18
19
20
21
22
23
24
R2
0.0
EN3
BST3
GND3
SW3L
SW3H
VDRV2
VIN3
VIN2
SW2
GND2
FB3
FB3
FB2
EPAD 33
L1
29
VINL
GND1
12
BST2 25
SW1
28
VOUT
RST3
13
SW1
ERR
9
27
FB2
FB3
14
VDRV1
EN2
10
26
NC
EN3
15
13
16
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BST3
SW1
GND1
1
VOUT1
1
(3.3 V)
VOUT1
NCV97310MW33GEVB
SCHEMATIC
NCV97310MW33GEVB
PCB LAYOUT
Figure 15. Top View
Figure 16. Bottom View
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NCV97310MW33GEVB
BILL OF MATERIALS
Table 4. BILL OF MATERIALS
Reference
Designator(s)
Manufacturer’s
Part Number
Substitution
Allowed
Qty.
Description
Value
Tolerance
Footprint
Manufacturer
C1, C2, CSNB2,
CSNB3
4
CAP CER
100 pF 50 V 5%
NP0 0603
100 pF
5%
603
Murata Electronics
North America
GCM1885C1H101JA16D
Yes
C3, CBST1,
CBST2, CBST3,
CDRV1
5
CAP CER
0.1 mF 50 V
10% X7R 0603
0.1 mF
10%
603
Murata Electronics
North America
GCM188R71H104KA57D
Yes
CCOMP1
1
CAP CER
330 pF 50 V 5%
NP0 0603
330 pF
5%
603
Murata Electronics
North America
GCM1885C1H331JA16D
Yes
CCOMP2
1
CAP CER
22 pF 50 V 5%
NP0 0603
22 pF
5%
603
Murata Electronics
North America
GCM1885C1H220JA16D
Yes
CDRV2
1
CAP CER
0.47 mF 16 V
10% X7R 0603
0.47 mF
10%
603
Murata Electronics
North America
GCM188R71C474KA55D
Yes
CIN0, CIN1,
CIN2
3
CAP CER
4.7 mF 50 V
10% X7R 1206
4.7 mF
10%
1206
TDK Corporation
C3216X7R1H475K160AC
Yes
CIN3
1
CAP CER
1.0 mF 50 V
10% X7R 1206
1.0 mF
10%
1206
Murata Electronics
North America
GCM31MR71H105KA55L
Yes
CIN4
1
CAP CER
2.2 mF 50 V
10% X7R 1206
2.2 mF
10%
1206
Murata Electronics
North America
GCM31CR71H225KA55L
Yes
CIN5
1
CAP ALUM
100 mF 50 V
20% SMD
100 mF
20%
FK_V_E
Chemi-Con
EMZA500ADA101MHA0G
Yes
CO14
1
CAP CER 1 mF
16 V 10% X7R
0603
1.0 mF
10%
603
Murata Electronics
North America
GCM188R71C105KA64D
Yes
CO15
1
CAP CER
4.7 mF 16 V
10% X7R 0805
4.7 mF
10%
805
TDK Corporation
CGA4J3X7R1C475K125AB
Yes
COUT11,
COUT12,
COUT13,
COUT21,
COUT22,
COUT31,
COUT32
7
CAP CER
10 mF 10 V 10%
X7R 1206
10 mF
10%
1206
Murata Electronics
North America
GCM31CR71A106KA64L
Yes
R1, R2
2
RES 0.0 W
1/10 W 0603
SMD
0W
Jumper
603
Vishay/Dale
CRCW06030000Z0EA
Yes
R3, R4, R5, R6,
RFB2U, RFB3U
6
RES 10.0 kW
1/10 W 1%
0603 SMD
10.0 kW
1%
603
Vishay/Dale
CRCW060310K0FKEA
Yes
R7
1
RES 0.0 W
1/4 W 1206
SMD
0W
Jumper
1206
Vishay/Dale
CRCW12060000Z0EA
Yes
RCOMP1
1
RES 12.4 kW
1/10 W 1%
0603 SMD
12.4 kW
1%
603
Vishay/Dale
CRCW060312K4FKEA
Yes
RFB2L
1
RES 5.76 kW
1/10 W 1%
0603 SMD
5.76 kW
1%
603
Vishay/Dale
CRCW06035K76FKEA
Yes
RSNB2, RSNB3
2
RES 10.0 W
1/10 W 1%
0603 SMD
10.0 W
1%
603
Vishay/Dale
CRCW060310R0FKEA
Yes
D1
1
DIODE
SCHOTTKY
4.0 A 40 V SMB
40 V/4.0 A
N/A
SMB_DIODE
ON Semiconductor
NRVB440MFST1G
No
http://onsemi.com
15
NCV97310MW33GEVB
Table 4. BILL OF MATERIALS (continued)
Manufacturer
Manufacturer’s
Part Number
Substitution
Allowed
XAL4020-102ME
Coilcraft
XAL4020-102ME
No
20%
XAL4030-472ME
Coilcraft
XAL4030-472ME
No
2.2 mH
20%
XAL4020-222ME
Coilcraft
XAL4020-222ME
No
PIN INBOARD
.042″ HOLE
1000/PKG
N/A
N/A
TP
Vector Electronics
K24C/M
Yes
8
CONN JACK
BANANA
UNINS PANEL
MOU
N/A
N/A
BANANA
Emerson Network
Power Connectivity
Johnson
108-0740-001
No
4
CONN
HEADER 2POS
.100 VERT
GOLD
N/A
N/A
JMP
Molex Connector
Corporation
22-28-4023
Yes
4
CONN
JUMPER
SHORTING
GOLD
N/A
N/A
JMP
Sullins Connector
Solutions
SSC02SYAN
Yes
COMP1, DRV1,
FB2, FB3,
RMIN, TP1,
TP2, TP3, VIND
9
CIRCUIT PIN
PRNTD .020″D
.425″L
Do Not
Populate
N/A
SMALLTP
Mill-Max
Manufacturing
Corp.
3128-2-00-15-00-00-08-0
Yes
RDEPTH,
RFB3L, RMOD,
ROSC
4
U1
1
Reference
Designator(s)
Qty.
Description
Value
Tolerance
Footprint
L0, L3
2
High Current
Shielded
Inductor 1.0 mH,
8.7 A SAT
1.0 mH
20%
L1
1
High Current
Shielded
Inductor 4.7 mH,
4.5 A SAT
4.7 mH
L2
1
High Current
Shielded
Inductor 2.2 mH,
5.6 A SAT
EN, EN2, EN3,
ERRB, GNDL,
PGND1_1,
PGND1_2,
PGND2_1,
PGND3_1,
RST1B, RST2B,
RST3B, STBYB,
SW1, SW2,
SW3, VIN2,
VBAT,
VOUT1_1,
VOUT2_1,
VOUT3_1
21
GND0, GND1,
GND2, GND3,
VBAT, VOUT1,
VOUT2, VOUT3
J1, J2, J3, J4
Do Not
Populate
Automotive
Battery-Connec
ted Low IQ
Multi-Output
PMU
N/A
603
N/A
QFN32
NOTE: All devices are RoHS Compliant.
http://onsemi.com
16
Yes
ON Semiconductor
NCV97310MW33R2G
No
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