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MAX1830 Fiches technique(PDF) 2 Page - Maxim Integrated Products

No de pièce MAX1830
Description  3A, 1MHz, Low-Voltage, Step-Down Regulators with Synchronous Rectification and Internal Switches
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Fabricant  MAXIM [Maxim Integrated Products]
Site Internet  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1830 Fiches technique(HTML) 2 Page - Maxim Integrated Products

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3A, 1MHz, Low-Voltage, Step-Down Regulators with
Synchronous Rectification and Internal Switches
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VIN = VCC = +3.3V, FBSEL = GND, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
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.
VCC, IN, SHDN to GND ............................................-0.3V to +6V
IN to VCC.............................................................................±0.3V
GND to PGND.....................................................................±0.3V
COMP, FB, TOFF, FBSEL, REF to GND .....-0.3V to (VCC + 0.3V)
LX Current (Note 1) ...............................................................5.1A
REF Short Circuit to GND Duration ............................Continuous
ESD Protection .....................................................................±2kV
Continuous Power Dissipation (TA = +70°C)
16-Pin QSOP (derate 14mW/°C above +70°C;
part mounted on 1in2 of 1oz copper) .............................1.12W
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) ................................ +300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage
VIN, VCC
3.0
5.5
V
FBSEL = VCC
2.487
2.525
2.563
FBSEL =
unconnected
1.492
1.515
1.538
FBSEL = REF
(MAX1830)
1.791
1.818
1.845
VIN = +3V to +5.5V,
ILOAD = 0 to 3A,
VFB = VOUT
FBSEL = GND
1.084
1.100
1.117
Preset Output Voltage
VOUT
VIN = +3.7V to +5.5V,
ILOAD = 0 to 3A,
VFB = VOUT
FBSEL = REF
(MAX1831)
3.283
3.333
3.383
V
Adjustable Output Voltage Range
VCC = VIN = +3V to +5.5V, ILOAD = 0,
FBSEL = GND
VREF
VIN
V
AC Load Regulation Error
2%
DC Load Regulation Error
0.4
%
Dropout Voltage
VDO
VCC = VIN = +3V, ILOAD = 3A
150
330
mV
Reference Voltage
VREF
1.089
1.100
1.111
V
Reference Load Regulation
∆VREF
IREF = -1µA to +10µA
0.5
2
mV
Current-Limit Threshold
ILIMIT
4.0
4.8
5.4
A
Maximum Output RMS Current
IOUT(RMS) (Note 4)
3.4
A
Idle Mode Current Threshold
IIM
0.2
0.6
1.0
A
VIN = 4.5V
45
90
PMOS Switch On-Resistance
RON, P
ILX = 0.5A
VIN = 3V
50
110
VIN = 4.5V
55
95
NMOS Switch On-Resistance
RON, N
ILX = 0.5A
VIN = 3V
55
100
m
Switching Frequency
f
(Note 2)
1
MHz
No-Load Supply Current
IIN + ICC
VFB = 1.2V
325
750
µA
Note 1: LX has internal clamp diodes to PGND and IN. Applications that forward bias the diode should take care not to exceed the IC’s
package power dissipation.


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