MAX8833ETJ+ Maxim Integrated Products, MAX8833ETJ+ Datasheet - Page 2

• Manufacturer Part Number: MAX8833ETJ+
• Description: IC REG STP DWN DUAL 3A 32-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8833ETJ+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 3.24 V
• Current - Output: 3A
• Frequency - Switching: 500kHz ~ 2MHz
• Voltage - Input: 2.35 ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Power - Output: 2.76W
• Output Voltage: 0.6 V to 0.9 V
• Output Current: 3 A
• Input Voltage: 2.35 V to 3.6 V
• Switching Frequency: 2 MHz
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 95 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual, 3A, 2MHz Step-Down Regulator
ABSOLUTE MAXIMUM RATINGS
IN_, LX_, V
V
EN_, SS_, COMP_, FB_, REFIN, FSYNC to GND ......-0.3V to the
Continuous LX_ Current (Note 1) ...................................5.5A
BST_ to LX_ ...........................................................-0.3V to +4.5V
PGND_ to GND......................................................-0.3V to +0.3V
ELECTRICAL CHARACTERISTICS
(V
C
Note 1: LX_ have internal clamp diodes to PGND_ and IN_. Applications that forward bias these diodes should take care not to
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.
2
IN1, IN2, VDL, V
IN_, VDL, and V
IN_ Supply Current
V
Shutdown Supply Current
(I
IN_, V
UVLO Monitors V
IN_, V
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
Error Amplifier Common-Mode-Input Range
Error Amplifier Maximum Output Current
FB_ Input Bias Current
DD
SS_
IN_
DD
IN1
, VDL to IN_.....................................................-0.3V to +4.5V
_______________________________________________________________________________________
= 0.022μF, PWRGD_ not connected; T
= V
+ VDL Supply Current
+ I
DD
DD
IN2
VDD
exceed the IC’s package power-dissipation limits.
Undervoltage Lockout Threshold
Undervoltage Lockout Deglitch
DD
+ I
, VDL, PWRGD_ to GND..................-0.3V to +4.5V
= V
VDD
PARAMETER
DD
VDL
DD
DD
+ I
Voltage Range
, IN1, and IN2
= 3.3V, V
VDL
lower of (V
)
FB_
VDD
= 0.5V, V
+ 0.3V) and (V
A
SS_
= -40°C to +85°C, typical values are at T
(Note 3)
1MHz switching, no load
1MHz switching, V
V
- V
Rising
Falling
V
3.6V , V
V
From COMP_ to GND, V
V
V
V
IN _
IN_
VDD
COMP_
COMP_
FB_
= V
LX_
= V
= V
VDL
= 0.605V
= V
REFIN
= 3.6V, V
E N _
V D D
VDD
= 1V to 2V V
= 1V to 2V V
+ 0.3V)
IN_
= 0V , V
= V
RMS
= 600mV, PGND_ = GND, R
= 2.3V to 3.6V, V
= V
V D L
EN_
VDL
CONDITIONS
LX _
DD
= V
= 0V
= V
= 0 or 3.6V
= VDL
V D D
V D D
Continuous Power Dissipation (T
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
θ
BS T _
JC
BST_
EN_
32-Pin Thin QFN (5mm x 5mm)
(derate 34.5mW/°C above +70°C) ..........................2758.6mW
...................................................................................1.7°C/W
= V
= V
=
= 0V
FB_
I N _
I N _
V
V
V
V
T
T
T
T
= 0.7V
= 2.5V to 3.3V
= 2.5V to 3.3V
A
A
T
T
A
A
IN_
IN_
VDD
VDD
A
A
= +25°C
= +85°C
= +25°C
= +85°C
= +25°C
= +85°C
= 2.5V
= 3.3V
= 2.5V
= 3.3V
A
= +25°C, unless otherwise noted.) (Note 2)
FSYNC
= 10kΩ, L = 0.47μH, C
0.594
0.594
2.35
1.80
MIN
1.8
0
1
A
= +70°C)
0.600
0.600
TYP
0.02
2.00
1.40
1.9
2.8
7.2
0.3
2.0
1.9
10
40
37
2
7
V
0.606
0.606
MAX
3.60
2.25
VDD
300
3.5
2.2
1.6
15
11
25
5
2
BST_
-
= 0.1μF,
UNITS
V/μs
mA
mA
mA
μA
μA
nA
μs
Ω
V
V
V
V
V
V