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MAX17620 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Synchronous Step-Down DC-DC Converter - Maxim Integrated

भाग संख्या MAX17620
समारोह Synchronous Step-Down DC-DC Converter
मैन्युफैक्चरर्स Maxim Integrated 
लोगो Maxim Integrated लोगो 
पूर्व दर्शन
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<?=MAX17620?> डेटा पत्रक पीडीएफ

MAX17620 pdf
MAX17620
4MHz, Miniature 600mA, Synchronous Step-Down
DC-DC Converter with Integrated MOSFETs
Absolute Maximum Ratings
IN to GND...................................................................-0.3V to 6V
LX to GND..................................................................-0.3V to 6V
MODE ........................................................... -0.3V to VIN + 0.3V
EN, PGOOD, FB, VOUT to GND...............................-0.3V to 6V
Continuous Power Dissipation (up to TA = +70°C)
(derate 9.8mW/°C above TA = +70°C)..........................784.3mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Soldering Temperature (Reflow).......................................+260°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.
Package Thermal Characteristics (Note 1)
TDFN
Junction-to-Ambient Thermal Resistance (θJA).........102°C/W
Junction-to-Case Thermal Resistance (θJC)..................8°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
VIN = +3.6V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical specifications are at TA = TJ = +25°C. (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
INPUT SUPPLY (IN)
Input Voltage Range
VIN
2.7 5.5
IIN-SH
VEN = 0V, shutdown mode
0.1
Input Supply Current
IQ_SKIP
Nonswitching
40
IQ-PWM
PWM mode (switching)
6
Undervoltage-Lockout Threshold
(UVLO)
VIN_UVLO VIN rising
2.55 2.6 2.65
UNITS
V
µA
mA
V
UVLO Hysteresis
ENABLE (EN)
EN Low Threshold
EN High Threshold
EN Hysteresis
EN Input Leakage
POWER MOSFETS
High-Side pMOS On-Resistance
High-Side pMOS On-Resistance
Low-Side nMOS On-Resistance
Low-Side nMOS On-Resistance
LX Leakage Current
High-Side Peak Current Limit
Low-Side Valley Current Limit
Low-Side Negative Current Limit
Low-Side Zero-Crossing
Current Limit
VIN_UVLO_HYS
VEN_LOW
VEN_HIGH
VEN_HYS
IEN
VEN falling
VEN rising
VEN = 5.5V, TA = TJ = +25°C
RDS-ONH
RDS-ONH
RDS-ONL
RDS-ONL
ILX_LKG
ILIM_PEAK
ILIM_VALLEY
ILIM_NEG
ILIM_ZX
VIN = 3.6V, ILX = 190mA
VIN = 5.0V, ILX = 190mA
VIN = 3.6V, ILX = 190mA
VIN = 5.0V, ILX = 190mA
LX = GND or IN, TA = +25°C
Current entering into LX pin
MODE = IN, current leaving out of LX
pin
2
1150
920
200
220
10
120
100
80
70
0.1
1450
1170
1050
100
0.8
50
200
160
145
130
1
1800
1450
mV
V
V
mV
nA
mΩ
mΩ
mΩ
mΩ
µA
mA
mA
mA
mA
www.maximintegrated.com
Maxim Integrated 2

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