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MAX8833 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 2MHz Step-Down Regulator - Maxim Integrated Products

भाग संख्या MAX8833
समारोह 2MHz Step-Down Regulator
मैन्युफैक्चरर्स Maxim Integrated Products 
लोगो Maxim Integrated Products लोगो 
पूर्व दर्शन
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<?=MAX8833?> डेटा पत्रक पीडीएफ

MAX8833 pdf
Dual, 3A, 2MHz Step-Down Regulator
ABSOLUTE MAXIMUM RATINGS
IN_, LX_, VDD, VDL, PWRGD_ to GND..................-0.3V to +4.5V
VDD, VDL to IN_.....................................................-0.3V to +4.5V
EN_, SS_, COMP_, FB_, REFIN, FSYNC to GND ......-0.3V to the
lower of (VVDD + 0.3V) and (VVDL + 0.3V)
Continuous LX_ Current (Note 1) ...................................5.5ARMS
BST_ to LX_ ...........................................................-0.3V to +4.5V
PGND_ to GND......................................................-0.3V to +0.3V
Continuous Power Dissipation (TA = +70°C)
32-Pin Thin QFN (5mm x 5mm)
(derate 34.5mW/°C above +70°C) ..........................2758.6mW
Operating Ambient Temperature Range .............-40°C to +85°C
Operating Junction Temperature Range ...........-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
θJC...................................................................................1.7°C/W
Note 1: LX_ have internal clamp diodes to PGND_ and IN_. Applications that forward bias these diodes should take care not to
exceed the IC’s package power-dissipation limits.
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
(VIN_ = VVDD = VVDL = 3.3V, VFB_ = 0.5V, VSS_ = VREFIN = 600mV, PGND_ = GND, RFSYNC = 10kΩ, L = 0.47μH, CBST_ = 0.1μF,
CSS_ = 0.022μF, PWRGD_ not connected; TA = -40°C to +85°C, typical values are at TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER
IN1, IN2, VDL, VDD
IN_, VDL, and VDD Voltage Range
IN_ Supply Current
VDD + VDL Supply Current
Shutdown Supply Current
(IIN1 + IIN2 + IVDD + IVDL)
IN_, VDD Undervoltage Lockout Threshold
UVLO Monitors VDD, IN1, and IN2
IN_, VDD Undervoltage Lockout Deglitch
BST1, BST2
Shutdown BST_ Current
COMP1, COMP2
COMP_ Clamp Voltage, High
COMP_ Slew Rate
COMP_ Shutdown Resistance
ERROR AMPLIFIER
FB_ Regulation Voltage
FB_ Regulation Voltage with
External Reference
CONDITIONS
MIN
(Note 3)
1MHz switching, no load
1MHz switching, VDD = VDL
VIN_ = VVDD = VVDL = VBST_
- VLX_ = 3.6V, VEN_ = 0V
Rising
Falling
VIN_ = 2.5V
VIN_ = 3.3V
VVDD = 2.5V
VVDD = 3.3V
TA = +25°C
TA = +85°C
2.35
1.8
VIN_ = VVDD = VVDL = VBST_ = TA = +25°C
3.6V, VEN_ = 0V, VLX_ = 0 or 3.6V TA = +85°C
VVDD = VIN_= 2.3V to 3.6V, VFB_ = 0.7V
1.80
From COMP_ to GND, VEN_ = 0V
VCOMP_ = 1V to 2V VVDD = VIN_ = 2.5V to 3.3V 0.594
VCOMP_ = 1V to 2V VVDD = VIN_ = 2.5V to 3.3V 0.594
Error Amplifier Common-Mode-Input Range
0
Error Amplifier Maximum Output Current
FB_ Input Bias Current
VFB_ = 0.605V
TA = +25°C
TA = +85°C
1
TYP MAX UNITS
3.60 V
1.9 3.5
2.8 5
mA
7.2
10 15
mA
11
0.3
μA
2.0 2.2
1.9
V
2 μs
2
0.02
μA
2.00 2.25
1.40
7 25
V
V/μs
Ω
0.600 0.606
0.600 0.606
VVDD -
1.6
40 300
37
V
V
V
mA
nA
2 _______________________________________________________________________________________

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