MAX8649EWET View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX8649EWET Datasheet PDF : 31 Pages
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1.8A Step-Down Regulator with
Remote Sense in 2mm x 2mm WLP
ABSOLUTE MAXIMUM RATINGS
IN1, IN2 to AGND ..................................................-0.3V to +6.0V
VDD to AGND.........................................................-0.3V to +4.0V
LX, SNS+, VID0, VID1, EN to AGND..........-0.3V to (VIN1 + 0.3V)
SCL, SDA, SYNC to AGND.........................-0.3V to (VDD + 0.3V)
PGND, SNS- to AGND...........................................-0.3V to +0.3V
RMS LX Current ..............................................................1800mA
Continuous Power Dissipation (TA = +70°C)
16-Bump WLP 0.5mm Pitch
(derate 13mW/°C above +70°C) ............................1040mW
Operating Temperature Range ...........................-40°C to +85°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)
WLP
Junction to Ambient Thermal Resistance (θJA)............76°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.maxim-ic.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(VIN1 = VIN2 = 3.6V, VAGND = VPGND = 0V, VDD = 1.8V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 2)
PARAMETER
IN1, IN2 Operating Range
VDD Operating Range
VDD Undervoltage Lockout
(UVLO) Threshold
VDD UVLO Hysteresis
IN_ Undervoltage Lockout
(UVLO) Threshold
IN_ UVLO Hysteresis
VDD Shutdown Supply Current
IN1, IN2 Shutdown Supply
Current
IN1, IN2 Standby Supply Current
VDD Standby Supply Current
LOGIC INTERFACE
Logic Input High Voltage (VIH)
Logic Input Low Voltage (VIL)
SDA, SCL, SYNC Logic Input
Current
CONDITIONS
VDD falling
VIN falling
VIN1 = VIN2 = 5.5V,
EN = VDD = AGND
VIN1 = VIN2 = 5.5V,
EN = VDD = AGND
VIN1 = VIN2 = 5.5V, SCL = SDA =
VDD, EN = AGND, I2C ready
VIN1 = VIN2 = VDD = 3.6V,
SCL = SDA = VDD, EN = AGND,
I2C ready
TA = +25°C
TA = +85°C
TA = +25°C
TA = +85°C
TA = +25°C
TA = +85°C
TA = +25°C
TA = +85°C
VIN1 = VIN2 = 2.5V to 5.5V,
VDD = 1.8V to 3.6V
VIN1 = VIN2 = 2.5V to 5.5V,
VDD = 1.8V to 3.6V
VIL = 0V or VIH = 3.6V,
EN = AGND
EN, VID0, VID1
SYNC, SCL, SDA
EN, VID0, VID1
SYNC, SCL, SDA
TA = +25°C
TA = +85°C
MIN TYP MAX UNITS
2.5
5.5
V
1.8
3.6
V
0.54 0.865 1.35
V
50
mV
2.10 2.15 2.20
V
70
mV
0.01
1
µA
0.01
0.25
1
µA
0.25
0.35
1
µA
0.35
0.02
1
µA
0.02
1.4
V
0.7 x VDD
0.4
V
0.3 x VDD
-1
0.01
+1
µA
0.01
2 _______________________________________________________________________________________
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