MAX1745EUB+T Maxim Integrated Products, MAX1745EUB+T Datasheet - Page 2

• Manufacturer Part Number: MAX1745EUB+T
• Description: IC DC-DC CNTRLR STP DWN 10UMAX
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1745EUB+T

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 18 V
• Frequency - Switching: 330kHz
• Voltage - Input: 4.5 ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Power - Output: 444mW
• Output Voltage: 1.25 V to 18 V
• Output Current: 10 A
• Input Voltage: 4.5 V to 36 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
IN, EXT, SHDN to GND...........................................-0.3V to +38V
VH to GND..............................................................-0.3V to +34V
VH, EXT to IN............................................................-7V to +0.3V
CS, OUT to GND ....................................................-0.3V to +20V
FB, 3/5, REF to GND .....................................-0.3V to (VL + 0.3V)
VL to GND...................................................................-0.3V to 6V
Continuous Power Dissipation (T
High-Voltage, Step-Down DC-DC
Controllers in µMAX
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V IN = V
36V, T A = +25°C.)
2
Input Voltage Range
Supply Current into IN
Shutdown Supply Current
Output Voltage (MAX1744)
OUT Input Current (MAX1744)
FB Threshold Voltage (MAX1745)
FB Input Current (MAX1745)
VH Output Voltage with Respect to IN
VL Output Voltage
VL Undervoltage Lockout
CS Threshold Voltage
CS Input Current
SHDN, 3/5 Logic-High Threshold
SHDN, 3/5 Logic-Low Threshold
3/5 Input Current
SHDN Input Current
EXT Resistance
Minimum EXT Off-Time
Minimum EXT On-Time
Output Line Regulation
Output Load Regulation
Reference Voltage
REF Load Regulation
REF Line Regulation
10-Pin μMAX (derate 5.6mW/°C above 70°C) .............444mW
_______________________________________________________________________________________
SHDN
= 5.5V to 36V, 3/5 = GND, I LOAD = 0, T A = 0°C to +85°C, unless otherwise noted. Typical values at V IN = V
PARAMETER
A
= +70°C)
V
SHDN = GND
3/5 = VL
3/5 = GND
3/5 = VL, V
Falling edge, hysteresis = 8mV
V
V
V
V
V
V
V
V
SHDN = GND
3/5 = GND
V
Figure 1, 5.5V < V
Figure 1, V
I
0 ≤ I
V
REF
SHDN
IN
IN
CS
CS
CS
CS
IN
IN
SHDN
IN
= 5.5V to 36V, I
= 5.5V to 36V, I
= 4.5V to 36V
= 4.5V to 36V
= 4.5V to 36V, I
REF
= V
= V
= V
= V
= 0
= V
= 36V
OUT
OUT
OUT
OUT
≤ 100μA
IN
IN
OUT
= 2.5V to 18V
= V
= 2.5V to 18V
= V
= 5.5V to 36V
= 12V, 30mA < I
CONDITIONS
= 5V
GND
GND
IN
VH
VL
REF
Operating Temperature Range
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
< 36V, I
= 100μA to 2mA
= 100μA to 20mA
MAX174_EUB ..................................................-40°C to +85°C
MAX174_AUB ................................................-40°C to +125°C
= 0
LOAD
LOAD
= 1A
< 2A
MIN
4.85
3.20
1.22
1.22
-6.0
-50
-25
4.5
4.5
2.0
2.4
1.5
0.7
85
80
0
TYP
5.00
3.30
1.25
1.25
-5.3
100
110
5.0
3.0
2.0
1.0
90
28
15
15
30
4
8
5
4
MAX
5.15
3.40
1.28
1.28
140
-4.3
115
150
5.5
4.1
0.4
2.5
1.5
36
12
44
50
25
±1
±1
12
20
10
60
0
SHDN
UNITS
mV/V
mV/A
μV/V
mV
mV
μA
μA
μA
nA
μA
μA
μA
μs
μs
Ω
V
V
V
V
V
V
V
V
V
=