MAX17577 [MAXIM]
in -12V and -5V Output-Voltage Applications;
| 型号： | MAX17577 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | in -12V and -5V Output-Voltage Applications |
| 文件： | 总14页 (文件大小：1046K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Click here for production status of specific part numbers.
MAX17577EVKIT#, MAX17578EVKIT# Evaluate: MAX17577 and MAX17578
Evaluation Kits
in -12V and -5V Output-Voltage
Applications
General Description
Features
● Operates Over a Wide Input Range
The MAX17577EVKIT# and MAX17578EVKIT# evalua-
tion kits (EV kits) provide a proven design to evaluate the
MAX17577 and MAX17578 high-efficiency, high-voltage,
inverting, Himalaya synchronous DC-DC converters. The
• MAX17577EVKIT#: V
= -12V, I
= 0.8A,
OUT1
OUT1
V
IN1
Range = 16V to 48V
• MAX17578EVKIT#: V
= -5V, I
= 1A,
OUT2
OUT2
V
IN2
Range = 16V to 55V
devices generate output voltages (V
) from -0.9V to
OUT
-36V and can deliver up to 1A of load current from a wide
4.5V to 60V-|V | input voltage range.
● Enable/UVLO Input, Resistor Programmable UVLO
OUT
Threshold
The MAX17577EVKIT# EV kit generates -12V output
(V ) at load currents up to 0.8A from a 16V to 48V
input supply and operates at 600kHz switching frequency.
This EV kit configuration features MAX17577 that oper-
ates in continuous conduction mode (CCM) at all loads,
thus, providing a constant frequency operation.
● Adjustable Soft-Start Time
OUT1
● RESET Output with a Pull-Up Resistor to an External
Supply
● System Ground Interfaced EN/UVLO and RESET
Pins
● Overcurrent and Overtemperature Protection
● Proven PCB Layout
The MAX17578EVKIT# EV kit generates -5V output
(V
) at load currents up to 1A from a 16V to 55V input
OUT2
supply and operates at 600kHz switching frequency. This
EV kit configuration features MAX17578 that operates in
discontinuous conduction mode (DCM) for superior effi-
ciency at light loads.
● Fully Assembled and Tested
● Complies with CISPR32 (EN55032) Class B
Conducted and Radiated Emissions
The EV kits are configured for optimum efficiency and
component size. The EV kits feature programmable
enable and input undervoltage-lockout (UVLO), soft-
start, open-drain RESET signal and external clock syn-
chronization. The EV kits also provide a good layout
example, which are optimized for conducted, radiated
EMI, and thermal performance. For more details about
the device Benefits and Features, refer to the MAX17577,
MAX17578 IC data sheet.
Ordering Information appears at end of data sheet.
319-100646; Rev 0; 12/20
MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
of typical application circuits of the two devices. Each of
these circuits are electrically isolated from each other
and hosted on the same PCB. Each of the devices can
be evaluated by powering them from their respective
input pins. Individual device settings can be adjusted
to evaluate their performance under different operating
conditions.
Quick Start
Recommended Equipment
● MAX17577EVKIT#, MAX17578EVKIT#
● 60V, 1.5A DC input power supply
● 5V, 10mA DC input power supply
● Loads capable of sinking 1A at -5V and 0.8A at -12V
● 2 Digital Multimeters (DMM)
Soft-Start Input (SS)
The EV kits offer an adjustable soft-start function to limit
inrush current during startup. The soft-start time is adjust-
ed by the value of external soft-start capacitor connected
between SS and SOUT pins. The selected output capaci-
Equipment Setup and Test Procedure
The EV kits are fully assembled and tested.
Use the following steps to verify and test individual device
operation.
tance (C
) and the output voltage (V
OUT
) determine
OUT
the minimum required soft-start capacitor C
C215) as follows:
(C115,
SS
Caution: Do not turn on the power supply until all
connections are completed.
-6
C
≥ 28 x 10 x C
x V
OUT OUT
SS
1) Set the 60V input power supply at a voltage between
16V and 48V for MAX17577EVKIT# or between 16V
and 55V for MAX17578EVKIT#. Disable the power
supply.
2) Connect the positive terminal of the 60V power sup-
ply to the VIN PCB pad and the negative terminal to
the nearest GND PCB pad.
3) Connect the positive terminal of the 5V power supply
to the VEXT PCB pad and the negative terminal to
the nearest GND PCB pad. Set the voltage at 5V.
4) Connect the positive terminal of the corresponding
load to the GND PCB pad and the negative terminal
to the nearest VOUT PCB pad.
5) Connect one DVM across the VOUT PCB pad and
the nearest GND PCB pad, and the another DVM
across the RESET pad and GND pad.
6) Verify that no shunts are installed on jumpers.
(JU101, JU201) (see Table 1 for details)
7) Turn on the DC power supply.
8) Enable the load.
9) Ensure the input voltage to be above 15.5V which is
the EN/UVLO rising threshold.
10) Verify that the DVM across the output terminal
displays -12V for MAX17577EVKIT# or -5V for
MAX17578EVKIT#.
11) Verify that the DVM across the RESET pad and GND
displays 5V.
The soft-start time (t ) is related to the capacitor con-
SS
nected at SS (C ) by the following equation:
SS
C
SS
t
=
SS
−6
5.55×10
For example, to program a 1ms soft-start time, a 5600pF
capacitor should be connected from the SS pin to SOUT.
Enable/Undervoltage-Lockout (EN/UVLO)
Programming
The MAX17577 and MAX17578 offer an Enable and
adjustable input undervoltage-lockout feature. In these
EV kits, for normal operation, leave the EN/UVLO jump-
ers (JU101, JU201) open. When jumpers are left open,
the MAX17577 and MAX17578 are enabled when the
input voltage rises above 15.5V. To disable the devices,
install shunts across pins 2–3 on the jumpers (JU101,
JU201). See Table 1 for jumper (JU101, JU201) settings.
The EN/UVLO PCB pad on the EV kits support external
Enable/Disable control of the device. Leave the jumpers
open when external Enable/Disable control is desired.
A potential divider formed by the resistors R
UVL_TOP
(R101, R201) and R
(R102, R202) at the EN/
UVL_BOT
UVLO pin sets the input voltage (V
) above which the
INU
converter is enabled when the jumpers are left open.
Choose R
late R
to be 3.32MΩ (max), and then calcu-
as follows:
12) Reduce the input voltage to 12V which is below the
EN/UVLO falling threshold.
UVL_TOP
UVL_BOT
13) Verify that both the DVMs displays 0V.
14) Disable the input power supply.
1.229×R
UVL_TOP
R
=
UVL_BOT
(V
−1.229)
INU
Detailed Description of Hardware
The MAX17577EVKIT# and MAX17578EVKIT# EV kits
are designed to demonstrate the salient features of
MAX17577 and MAX17578 devices. The EV kits consist
where, R
is in MΩ. For more details about
UVL_BOT
Setting the Input Undervoltage-Lockout Level, refer to the
MAX17577, MAX17578 IC data sheet.
Maxim Integrated
│ 2
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MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
External Clock Synchronization (RT/SYNC)
Input Voltage Range
The EV kits provide RT/SYNC PCB pads to synchronize
the MAX17577 and MAX17578 to an optional external
clock. The external synchronization clock frequency must
The MAX17577EVKIT# and MAX17578EVKIT# has a
default input voltage range starting from 16V. The oper-
ating input voltage range can be modified by changing
the values of the resistors connected at the FB and EN/
UVLO pins for the same inductor and output capacitor.
The deliverable output current also changes with input
voltage range. For more details about the Load Current
Capability, refer to the MAX17577, MAX17578 IC data
sheet. Table 2 and Table 3 show the settings for dif-
ferent input voltage ranges for MAX17577EVKIT# and
MAX17578EVKIT#, respectively.
be between 1.1 x f
and 1.4 x f , where f
is the
SW
SW
SW
switching frequency programmed by the resistors (R105
and R205) connected to the RT/SYNC pin. For more
details about the External Clock Synchronization, refer to
the MAX17577, MAX17578 IC data sheet.
Active-Low, Open-Drain Reset
Output (RESET)
The EV kits provide two PCB pads RESET1 and RESET2
to monitor the status of the respective converters. The
open drain outputs are connected to 5V external power
supply (VEXT1, VEXT2) via pull up resistors (R106,
R206). RESET goes high 1024 switching cycles after the
output voltage rises above 95% (typ) of its set value and
it is driven low to respective GND when the output voltage
drops below 92% (typ) of its set value.
Hot Plug-In and Long Input Cables
The MAX17577EVKIT# and MAX17578EVKIT# PCB lay-
outs provide optional electrolytic capacitors (C108 = C208
= 33μF/80V). These capacitors limit the peak voltage at
the input of the corresponding device when the DC input
source is Hot-Plugged to the EV kit input terminals with
input cables. The equivalent series resistance (ESR) of
the electrolytic capacitors dampen the oscillations caused
by interaction of the inductance of the input cables, and
the ceramic capacitors at the converters input.
Table 1. Converter EN/UVLO Jumper (JU101, JU201) Settings
SHUNT POSITION
EN/UVLO PIN
OUTPUT
1-2
Connected to IN
Enabled
Connected to the center node of respective resistor-dividers
(R101 and R102; R201 and R202)
Enabled, UVLO level is set by the
resistor-divider between IN and GND
Not installed*
2-3
Connected to GND
Disabled
*Default position
Table 2. MAX17577EVKIT# EN/UVLO and FB Resistor Divider Settings
INPUT VOLTAGE RANGE
R101 (MΩ)
R102
294kΩ
665kΩ
1.33MΩ
R103 (kΩ)
R104 (kΩ)
LOAD CURRENT
16V to 48V*
3.32
340
27.4
0.8A
0.5A
0.3A
8V to 48V
3.32
432
34.8
4.5V to 48V
3.32
487
39.2
*Default Setting
Table 3. MAX17578EVKIT# EN/UVLO and FB Resistor Divider Settings
INPUT VOLTAGE RANGE
R201 (MΩ)
R202
294kΩ
665kΩ
1.33MΩ
R203 (kΩ)
R204 (kΩ)
LOAD CURRENT
16V to 55V*
3.32
121
26.7
1A
8V to 55V
3.32
182
40.2
0.75A
0.5A
4.5V to 55V
3.32
226
49.9
*Default Setting
Maxim Integrated
│ 3
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MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
The MAX17577EVKIT# and MAX17578EVKIT# PCBs
have designated footprints for the placement of con-
ducted EMI filter components as per the optional Bill of
Material (BoM). Use of these filter components results in
lower conducted EMI, below CISPR32 Class B limits. Cut
open the trace at L102 and L202 before installing EMI
filter components. The PCB layouts are also designed
to limit radiated emissions from switching nodes of the
power converter, resulting in radiated emissions below
CISPR32 Class B limits.
Inductive Output Short-Circuit Protection
The MAX17577EVKIT# and MAX17578EVKIT# PCB
layouts provide footprints for optional R-D circuits (R107
and D101, R207 and D201) that are used for Inductive
Output Short-Circuit Protection. For more details, refer to
the MAX17577, MAX17578 IC data sheet.
Electromagnetic Interference (EMI)
Compliance to conducted emissions (CE) standards
requires an EMI filter at the input of a switching power
converter. The EMI filter attenuates high-frequency cur-
rents drawn by the switching power converter, and limits
the noise injected back into the input power source.
MAX17577EVKIT# and MAX17578EVKIT# EV Kit Performance Reports
(V
= V
= 24V, f
= f = 600kHz, unless otherwise noted.)
SW2
IN1
IN2
SW1
MAX17578
EFFICIENCY VS. LOAD CURRENT
VOUT2 = -5V
MAX17577
EFFICIENCY VS. LOAD CURRENT
MAX17577
LOAD AND LINE REGULATION
VOUT1 = -12V
VOUT1 = -12V
TOC01
TOC03
TOC02
100
80
60
40
20
0
100
-11.95
-12.00
-12.05
-12.10
-12.15
VIN = 36V
VIN = 16V
80
60
40
20
VIN = 48V
VIN = 36V
VIN = 24V
VIN = 16V
VIN = 55V
VIN = 48V
VIN = 36V
VIN = 24V
VIN = 16V
VIN = 48V
VIN = 24V
0.0
0.2
0.4
0.6
0.8
0.01
0.10
1.00
0.0
0.2
0.4
0.6
0.8
LOAD CURRENT (A)
LOAD CURRENT (A)
LOAD CURRENT (A)
MAX17578
LOAD AND LINE REGULATION
MAX17577
LOAD TRANSIENT BETWEEN 0 AND 0.4A
MAX17577
LOAD TRANSIENT BETWEEN 0.4A AND 0.8A
VOUT2 = -5V
VOUT1
= -12V
TOC04
TOC05
VOUT1 = -12V
TOC06
-4.90
-4.95
-5.00
-5.05
-5.10
VIN = 16V
VIN = 36V
VIN = 55V
VOUT(AC)
VOUT(AC)
200mV/div
200mV/div
VIN = 24V VIN = 48V
0.8A
0.4A
IOUT
IOUT
200mA/div
500mA/div
200µs/div
200µs/div
0.0
0.2
0.4
0.6
0.8
1.0
LOAD CURRENT (A)
Maxim Integrated
│ 4
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MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
MAX17577EVKIT# and MAX17578EVKIT# EV Kit Performance Reports (continued)
(V
= V
= 24V, f
= f = 600kHz, unless otherwise noted.)
SW2
IN1
IN2
SW1
MAX17578
MAX17578
MAX17577
STEADY STATE AT 0.8A LOAD
VOUT1 = -12V
LOAD TRANSIENT BETWEEN 10mA AND 0.5A
LOAD TRANSIENT BETWEEN 0.5A AND 1A
VOUT2 = -5V
VOUT2 = -5V
TOC07
TOC08
TOC09
VOUT(AC)
VOUT(AC)
100mV/div
100mV/div
VOUT(AC)
50mV/div
20V/div
VLX
1A
0.5A
IOUT
IOUT
500mA/div
200mA/div
ILX
1A/div
200µs/div
200µs/div
1µs/div
MAX17578
STEADY STATE AT 10mA LOAD
MAX17578
STEADY STATE AT 1A LOAD
MAX17577
STEADY STATE AT NO LOAD
VOUT1 = -12V
V
OUT2 = -5V
VOUT2 = -5V
TOC12
TOC10
TOC11
VOUT(AC)
20mV/div
20V/div
VOUT(AC)
VOUT(AC)
20mV/div
20V/div
50mV/div
20V/div
VLX
VLX
VLX
ILX
ILX
200mA/div
1A/div
ILX
1A/div
1µs/div
1µs/div
1µs/div
MAX17577
START UP WITH PREBIAS VOLTAGE OF -6V
MAX17577
MAX17577
START UP & SHUT DOWN THROUGH EN/UVLO
START UP & SHUT DOWN THROUGH EN/UVLO
V
OUT1 = -12V
VOUT1 = -12V
VOUT1 = -12V
TOC15
TOC13
TOC14
VEN/UVLO
5V/div
1A/div
10V/div
5V/div
1A/div
5V/div
ILX
ILX
ILX
1A/div
10V/div
5V/div
VOUT
VOUT
VOUT
10V/div
5V/div
VRESET
VRESET
VRESET
5V/div
1ms/div
1ms/div
1ms/div
CONDITIONS: 1.5kΩ RESISTIVE LOAD,
CONDITIONS: 1.5kΩ RESISTIVE LOAD,
CONDITIONS: 15Ω RESISTIVE LOAD,
RESET IS PULLED UP TO 5V CONNECTED AT VEXT1
RESET IS PULLED UP TO 5V CONNECTED AT VEXT1
RESET IS PULLED UP TO 5V CONNECTED AT VEXT1
Maxim Integrated
│ 5
www.maximintegrated.com
MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
MAX17577EVKIT# and MAX17578EVKIT# EV Kit Performance Reports (continued)
(V
= V
= 24V, f
= f = 600kHz, unless otherwise noted.)
SW2
IN1
IN2
SW1
MAX17578
MAX17578
MAX17578
START UP WITH PREBIAS VOLTAGE OF -2.5V
START UP & SHUT DOWN THROUGH EN/UVLO
START UP & SHUT DOWN THROUGH EN/UVLO
VOUT2 = -5V
VOUT2 = -5V
VOUT2 = -5V
TOC18
TOC16
TOC17
VEN/UVLO
VEN/UVLO
VEN/UVLO
5V/div
5V/div
5V/div
ILX
ILX
ILX
500mA/div
1A/div
5V/div
500mA/div
VOUT
VOUT
VOUT
-2.5V
-5V
5V/div
5V/div
VRESET
VRESET
VRESET
5V/div
5V/div
5V/div
1ms/div
1ms/div
1ms/div
CONDITIONS: 5Ω RESISTIVE LOAD,
CONDITIONS: 500Ω RESISTIVE LOAD,
CONDITIONS: 500Ω RESISTIVE LOAD,
RESET IS PULLED UP TO 5V CONNECTED AT VEXT2
RESET IS PULLED UP TO 5V CONNECTED AT VEXT2
RESET IS PULLED UP TO 5V CONNECTED AT VEXT2
MAX17577
OVERLOAD PROTECTION
MAX17577
MAX17578
EXTERNAL CLOCK SYNCHRONIZATION WITH 840kHz
EXTERNAL CLOCK SYNCHRONIZATION WITH 840kHz
VOUT1 = -12V
VOUT1 = -12V
VOUT2 = -5V
TOC21
TOC19
TOC20
VOUT
5V/div
VEXTSYNC
VOUT(AC)
5V/div
VEXTSYNC
VOUT(AC)
5V/div
50mV/div
100mV/div
VLX
VLX
20V/div
2A/div
20V/div
2A/div
ILX
ILX
ILX
1A/div
20ms/div
10µs/div
10µs/div
CONDITIONS: 15Ω LOAD
CONDITIONS: 5Ω LOAD
CONDITIONS: 5Ω LOAD
MAX17578
OVERLOAD PROTECTION
VOUT2 = -5V
MAX17578
BODE PLOT, VOUT2 = -5V
MAX17577
BODE PLOT, VOUT1 = -12V
TOC23
TOC24
TOC22
30
15
0
120
60
30
15
0
120
PHASE
PHASE
VOUT
1V/div
60
0
0
GAIN
GAIN
-15
-60
-120
GAIN CROSSOVER
GAIN CROSSOVER
ILX
1A/div
FREQUENCY = 22.4kHz
FREQUENCY = 46.3kHz
PHASE MARGIN = 72.8°
PHASE MARGIN = 62.4°
-30
1k
-15
-60
20ms/div
10k
100k
1k
10k
100k
FREQUENCY (Hz)
CONDITIONS: 15Ω LOAD
CONDITIONS: 1Ω LOAD
FREQUENCY (Hz)
CONDITIONS: 5Ω LOAD
Maxim Integrated
│ 6
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MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
MAX17577EVKIT# and MAX17578EVKIT# EV Kit Performance Reports (continued)
(V
= V
= 24V, f
= f
SW2
= 600kHz, unless otherwise noted.)
IN1
IN2
SW1
MAX17578 CONDUCTED EMISSIONS PLOT,
VOUT2 = -5V, LOAD = 1A, fSW = 600kHz
MAX17578 RADIATED EMISSIONS PLOT,
VOUT2 = -5V, LOAD = 1A, fSW = 600kHz
TOC25
TOC26
45
40
35
30
25
20
15
70
CISPR32 CLASS B QP LIMIT
VERTICAL SCAN
CISPR32 CLASS B QP LIMIT
CISPR32 CLASS B AVG LIMIT
60
50
40
30
20
10
0
10
5
PEAK EMISSIONS
0
-5
-10
HORIZONTAL SCAN
AVERAGE EMISSIONS
10
-20
-30
30
30
0.15
1000
1
100
FREQUENCY (MHz)
FREQUENCY (MHz)
L202 = 15µH, C206 = C210 = 2.2µF/100V/1210/X7R
Component Suppliers
SUPPLIER
Coilcraft, Inc.
WEBSITE
www.coilcraft.com
Murata Americas
Panasonic Corp.
SullinsCorp
www.murataamericas.com
www.panasonic.com
www.sullinscorp.com
www.tdk.com
TDK
Note: Indicate that you are using the MAX17577/MAX17578 when contacting these component suppliers.
Ordering Information
PART
TYPE
EV Kit
EV Kit
MAX17577EVKIT#
MAX17578EVKIT#
#Denotes RoHs compliance.
Maxim Integrated
│ 7
www.maximintegrated.com
MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
MAX17577EVKIT# and MAX17578EVKIT# EV Kit Bill of Materials
S.No
DESIGNATOR
C101, C201
C102, C113, C202, C213
C108, C208
C112
C114, C214
C115, C215
C116, C118, C122,
C216, C218, C222
C117, C217
C119, C219
C120, C220
C123, C223
C126, C226
C212
DESCRIPTION
QUANTITY
MANUFACTURER PART NUMBER
TDK C1005C0G2A151J050BA
MURATA GRM188R72A104KA35
PANASONIC EEE-FK1K330P
MURATA GRM31CZ72A475KE11
MURATA GRM188R71A225KE15
MURATA GRM155R71E562KA01
1
2
3
4
5
6
150pF±5%; 100V; C0G; Ceramic Capacitor (0402)
0.1µF±10%; 100V; X7R; Ceramic Capacitor (0603)
33uF±20%, 80V, Electrolytic capacitor
4.7µF± 10%; 100V; X7R; Ceramic Capacitor (1206)
2.2µF± 10%; 10V; X7R; Ceramic Capacitor (0603)
5600pF± 10%; 25V; X7R; Ceramic Capacitor (0402)
2
4
2
1
2
2
7
0.1µF±10%; 16V; X7R; Ceramic Capacitor (0402)
6
MURATA GRM155R71C104KA88
8
9
47pF±5%; 50V; C0G; Ceramic Capacitor (0402)
10nF±10%; 100V; X7R; Ceramic Capacitor (0603)
22µF± 20%; 25V; X7R; Ceramic Capacitor (1210)
1µF± 10%; 16V; X7R; Ceramic Capacitor (0603)
0.47µF± 10%; 10V; X7R; Ceramic Capacitor (0402)
2.2µF± 10%; 100V; X7R; Ceramic Capacitor (1210)
3-pin header (36-pin header 0.1” centers)
Inductor, 22μH, 3.4A (5.3mm x 5.5mm)
Inductor, 10μH, 4.9A (5.3mm x 5.5mm)
3.32MΩ, ±1%, 1/10W, Resistor (0603)
294kΩ, ±1%, 1/10W, Resistor (0603)
2
2
2
2
2
1
2
1
1
2
2
1
1
2
2
2
1
1
MURATA GRM1555C1H470JA01
TDK C1608X7R2A103K080AA
MURATA GRM32ER71E226ME15
TDK C1608X7R1C105K080AC
MURATA GRM155R71A474KE01
TDK C3225X7R2A225K230AB
SULLINS PEC03SAAN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
J101, J201
L101
L201
R101, R201
R102, R202
R103
COILCRAFT XEL5050-223ME
COILCRAFT XEL5050-103ME
340kΩ, ±1%, 1/16W, Resistor (0402)
R104
27.4kΩ, ±1%, 1/16W, Resistor (0402)
10.5kΩ, ±1%, 1/16W, Resistor (0402)
10kΩ, ±1%, 1/16W, Resistor (0402)
0Ω, ±1%, 1/16W, Resistor (0805)
121kΩ, ±1%, 1/16W, Resistor (0402)
26.7kΩ, ±1%, 1/16W, Resistor (0402)
High-Efficiency, Synchronous, Inverting Output DC-DC
Converter (12 TDFN 3mm x 3mm)
R105, R205
R106, R206
R107, R207
R203
R204
26
U101
1
MAXIM INTEGRATED MAX17577ATC+
High-Efficiency, Synchronous, Inverting Output DC-DC
Converter (12 TDFN 3mm x 3mm)
Jumper Socket (2.54mm)
OPTIONAL: 2.2µF± 10%; 100V; X7R; Ceramic Capacitor
(1210)
OPTIONAL: INDUCTOR, 15μH, 2.2A (4mm x 4mm)
27
28
29
30
31
32
U201
1
2
2
1
0
0
0
MAXIM INTEGRATED MAX17578ATC+
SULLINS STC02SYAN
SU101, SU201
C206, C210
TDK C3225X7R2A225K230AB
COILCRAFT XAL4040-153ME
L202
C103, C109, C111, C125,
C203, C209, C211, C225
C104, C124, C204, C224
OPEN: Capacitor (0402)
OPEN: Capacitor (0603)
33 C105-C107, C110, C205, C207 OPEN: Capacitor (1210)
34
35
36
D101, D201
L102
R108, R208
OPEN: Diode (POWERDI-323)
OPEN: Inductor (4mm x 4mm)
OPEN: Resistor (0603)
0
0
0
DEFAULT JUMPER TABLE
SHUNT POSITION
JUMPER
JU101
JU201
Open
Open
Maxim Integrated
│ 8
www.maximintegrated.com
MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
MAX17577EVKIT# and MAX17578EVKIT# EV Kit Schematics
MAX17577EVKIT# Schematic Diagram
1 ꢐ
1
ꢐ
ꢔ
1
2
Maxim Integrated
│ 9
www.maximintegrated.com
MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
MAX17577EVKIT# and MAX17578EVKIT# EV Kit Schematics (continued)
MAX17578EVKIT# Schematic Diagram
1 ꢁ
1
ꢁ
ꢕ
1
2
Maxim Integrated
│ 10
www.maximintegrated.com
MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
MAX17577EVKIT# and MAX17578EVKIT# EV Kits PCB Layouts
MAX17577EVKIT# and MAX17578EVKIT# EV Kits Component Placement Guide—Top Silkscreen
MAX17577EVKIT# and MAX17578EVKIT# EV Kits PCB Layout—Top Layer
Maxim Integrated
│ 11
www.maximintegrated.com
MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
MAX17577EVKIT# and MAX17578EVKIT# EV Kits PCB Layouts (continued)
MAX17577EVKIT# and MAX17578EVKIT# EV Kits PCB Layout—Layer 2
MAX17577EVKIT# and MAX17578EVKIT# EV Kits PCB Layout—Layer 3
Maxim Integrated
│ 12
www.maximintegrated.com
MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
MAX17577EVKIT# and MAX17578EVKIT# EV Kits PCB Layouts (continued)
MAX17577EVKIT# and MAX17578EVKIT# EV Kits PCB Layout—Bottom Layer
MAX17577EVKIT# and MAX17578EVKIT# EV Kits Component Placement Guide—Bottom Silkscreen
Maxim Integrated
│ 13
www.maximintegrated.com
MAX17577EVKIT#, MAX17578EVKIT#
Evaluation Kits
Evaluate: MAX17577 and MAX17578
in -12V and -5V Output-Voltage
Applications
Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
0
12/20
Initial release
—
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2020 Maxim Integrated Products, Inc.
│ 14
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