4 EVM Schematics
4.1 Power Supply Schematic
SELECT TPS62913 or BYPASS
TPS62913 for VDD and VDDO rails
VDDO_PLANE
TP5
VDDO
1uF
C21
TP1
VDD_DCDC
DNP
TP7
VIN2
DNP
47µF
C27
VIN2
DUT VDDO OUTPUT POWER (3.3V)
TPS62913 OUT: 3.3 V
TPS62913 OUT: 3.3 V
VDD_PLANE
TP2
VDD
1uF
C6
DUT VDD CORE POWER (3.3V)
20V
D2
DIODE_SCHOTTKY
VDDO
TP4
VDDO_DCDC
DNP
VIN3
1
2
3
4
5
J3
VIN2
DNP
POWER INPUT
SH2
SNT-100-BK-G
SH1
SNT-100-BK-G
VDD
EN/SYNC
1
SW
2
VO
3
PGND
4
PG
5
VIN
6
PSNS
7
NR/SS
8
FB
9
S-CONF
10
TPS62913RPUT
U500
470nF
25V
C512
VIO_3P3V
S-CONF top resistor = 0 for 2.2MHz no sync no discharge, open if bottom resistor is chosen
S-CONF bottom resistor = 18.2k for 2.2MHz, no sync, with output discharge
18.2k
R502
S-CONF bottom resistor = 27.4k for 2.2MHz +/-20% sync with discharge
0
R500
0805
10V
22uF
C501
0402
25V
2200pF
C507
0805
10V
22uF
C502
0805
10V
22uF
C503
GND
GND
0805
10uF
25V
C505
0805
10uF
25V
C506
XGL4030-222MEC
L501
+12V
270pF
50V
C511
GND
5.60k
R501
1.80k
R504
DNP
0805
10V
22uF
C508
0805
10V
22uF
C509
1
2
L500
BLE18PS080SN1
0805
10V
22uF
C510
10V
10uF
C513
GND
GND
1
2
L502
BLE18PS080SN1
0402
25V
2200pF
C514
GND
0402
25V
2200pF
C504
TP501
VDD_XO_DCDC
DNP
10V
10uF
C515
GND
GND
1
2
L503
BLE18PS080SN1
0402
25V
2200pF
C516
35V
47uF
C500
10uF
C23
23.2k
R8
13.3k
R9
1-A LDO REG (LDO3) for XO rail
10uF
C22
LDO3 OUT 3.3V
IN
1
IN
2
IN[CP]
3
CP
4
EN
5
GND[CP]
6
GND
7
FB
8
SET
9
OUT[FB]
10
OUT
11
OUT
12
DAP
13
LP38798SD-ADJ/NOPB
U9
10nF
C24
LDO3_IN
LDO3
47k
R203
0.01uF
C156
GND
1
2
3
4
5
J500
393570005
1
2
3
4
5
6
JP1
61000621121
LDO1
1
2
3
4
5
6
JP2
61000621121
LDO2
VIN4
SH4
SNT-100-BK-G
1
2
3
4
5
6
JP4
61000621121
VCC_XO
VIN1
1
2
3
4
5
J2
VIN1
DNP
47µF
C10
20V
D1
DIODE_SCHOTTKY
GND
Figure 4-1. Power Supplies
4.2 Alternative Power Supply Schematic
1-A LDO REG (LDO1, LDO2) for DUT VDD & VDDO rails
IN
1
IN
2
IN[CP]
3
CP
4
EN
5
GND[CP]
6
GND
7
FB
8
SET
9
OUT[FB]
10
OUT
11
OUT
12
DAP
13
LP38798SD-ADJ/NOPB
U10
IN
1
IN
2
IN[CP]
3
CP
4
EN
5
GND[CP]
6
GND
7
FB
8
SET
9
OUT[FB]
10
OUT
11
OUT
12
DAP
13
LP38798SD-ADJ/NOPB
U11
10uF
C1
10nF
C7
10uF
C8
10nF
C13
10uF
C2
23.2k
R1
13.3k
R2
10uF
C9
23.2k
R3
13.3k
R5
LDO1
LDO2
47k
R201
0.01uF
C154
GND
47k
R202
0.01uF
C155
GND
VIN1
Figure 4-2. Alternative Power Supply
EVM Schematics
16
LMK5B33414EVM User's Guide
SNAU279 – JULY 2022
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