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What is MAX17536?

This electronic component, produced by the manufacturer "Maxim Integrated", performs the same function as "Step-Down DC-DC Converter".


MAX17536 Datasheet PDF - Maxim Integrated

Part Number MAX17536
Description Step-Down DC-DC Converter
Manufacturers Maxim Integrated　
Logo Maxim Integrated Logo　


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Total 19 Pages



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MAX17536
4.5V to 60V, 4A, High-Efficiency, Synchronous
Step-Down DC-DC Converter
with Internal Compensation
General Description
The MAX17536 high-efficiency, high-voltage, synchronous
step-down DC-DC converter with integrated high-side
MOSFET operates over a 4.5V to 60V input. The
converter can deliver up to 4A and generates output
voltages from 0.9V up to 0.9 x VIN. The feedback (FB)
voltage is accurate to within ±1.4% over -40°C to +125°C.
The MAX17536 uses peak current-mode control. The
device can be operated in the pulse-width modulation
(PWM), pulse-frequency modulation (PFM), and
discontinuous-conduction mode (DCM) control schemes.
The device is available in a 20-pin (5mm x 5mm) thin QFN
(TQFN) package. Simulation models are available.
Applications
● Industrial Power Supplies
● Distributed Supply Regulation
● Base-Station Power Supplies
● Wall Transformer Regulation
● High-Voltage Single-Board Systems
● General-Purpose Point-of-Load
Ordering Information appears at end of data sheet.
Benefits and Features
● Reduces External Components and Total Cost
• No Schottky-Synchronous Operation
• Internal Compensation for Any Output Voltage
• Built-In Soft-Start
• All-Ceramic Capacitors, Compact Layout
● Reduces Number of DC-DC Regulators to Stock
• Wide 4.5V to 60V Input
• Adjustable 0.9V to 0.9 x VIN Output
• 100kHz to 2.2MHz Adjustable Switching Frequency
with External Synchronization
● Reduces Power Dissipation
• Peak Efficiency > 95%
• PFM/DCM Modes Enables Enhanced Light-Load
Efficiency
• Auxiliary Bootstrap LDO for Improved Efficiency
• 3.5FA Shutdown Current
● Operates Reliably in Adverse Industrial Environments
• Hiccup or Latchoff Mode Overload Protection
• DL-to-LX Short Detection Feature
• Built-In Output-Voltage Monitoring with RESET
• Programmable EN/UVLO Threshold
• Monotonic Startup into Prebiased Load
• Overtemperature Protection
• -40NC to +125NC Operation
Typical Application Circuit for 5V Output
C6
2.2μF
EN/UVLO VIN VIN VIN VIN
RT BST
MODE /SYNC
VCC LX
SGND
CF
RESET
MAX17536
LX
LX
DL
C11
0.1μF
SS
PGND
EXT/VCC
FB
C7
0.022 μF
fSW = 450kHz
VIN
7.5V to 60V
C1
2.2μF
C2
2.2μF
L1
4.7μH
C8
N1 47μF
C9
22μF
L1 = XAL6060-472
N1 = RJK0651DPB
VOUT
5V, 4A
R3
196kΩ
R4
43.2kΩ
19-7586; Rev 0; 6/15

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MAX17536 equivalent
MAX17536
4.5V to 60V, 4A, High-Efficiency, Synchronous
Step-Down DC-DC Converter
with Internal Compensation
Typical Operating Characteristics
(VIN = VEN/UVLO = 24V, VPGND = VSGND = 0V, CVIN = 2 x 2.2µF, CVCC = 2.2µF, CBST = 0.1µF, CSS = 22,000pF, RT = MODE/SYNC = open,
TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C. All voltages are referenced to SGND, unless
otherwise noted.)
5V OUTPUT, PWM MODE,
EFFICIENCY vs. LOAD CURRENT
FIGURE 3 CIRCUIT
100
90
80 VIN = 24VVIN = 36V VIN = 48V
70
VIN = 12V
60
50
40
0
MODE = SGND
123
LOAD CURRENT (A)
4
100
90
80
70
60
50
40
30
20
0
3.3V OUTPUT, PWM MODE,
EFFICIENCY vs. LOAD CURRENT
FIGURE 4 CIRCUIT
VIN = 36V VIN = 48V
VIN = 24V
VIN = 12V
MODE = SGND
123
LOAD CURRENT (A)
4
5V OUTPUT, PFM MODE,
EFFICIENCY vs. LOAD CURRENT
FIGURE 3 CIRCUIT
100
90
80
70
60
50
40
1
VIN = 24V
VIN = 48V
VIN = 36V
VIN = 12V
MODE = OPEN
10 100 1000
LOAD CURRENT (mA)
10000
100
90
80
70
60
50
40
30
20
1
3.3V OUTPUT, PFM MODE,
EFFICIENCY vs. LOAD CURRENT
FIGURE 4 CIRCUIT
VIN = 36V
VIN = 24V
VIN = 12V
VIN = 48V
MODE = OPEN
10 100 1000
LOAD CURRENT (mA)
10000
3.3V OUTPUT, DCM MODE,
EFFICIENCY VS. LOAD CURRENT
FIGURE 4 CIRCUIT
100
VIN= 48V
90
VIN = 36V
80
VIN = 24V
70
VIN = 12V
60
50
40
30
1
MODE = VCC
10 100 1000
LOAD CURRENT (mA)
10000
5V OUTPUT, DCM MODE,
EFFICIENCY vs. LOAD CURRENT
FIGURE 3 CIRCUIT
100
VIN = 48V
90 VIN = 36V
80 VIN = 24V
70 VIN = 12V
60
50
40
30
1
MODE = VCC
10 100 1000
LOAD CURRENT (mA)
10000
5.02
5.01
5.00
4.99
4.98
4.97
4.96
4.95
4.94
4.93
4.92
0
5V OUTPUT, PWM MODE,
LOAD AND LINE REGULATION
FIGURE 3 CIRCUIT
VIN = 24V
VIN = 48V
VIN = 12V
VIN = 36V
123
LOAD CURRENT (A)
4
www.maximintegrated.com
Maxim Integrated │  5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for MAX17536 electronic component.


Information Total 19 Pages
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