MAX8833_09 MAXIM [Maxim Integrated Products], MAX8833_09 Datasheet - Page 2

• Manufacturer Part Number: MAX8833_09
• Description: Dual, 3A, 2MHz Step-Down Regulator
• Manufacturer: MAXIM [Maxim Integrated Products]

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
0.022µF, PWRGD not connected; T
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
IN
DD
IN1
, VDL to IN_.....................................................-0.3V to +4.5V
_______________________________________________________________________________________
= V
+ VDL Supply Current
+ I
DD
DD
VDD
exceed the IC’s package power-dissipation limits.
IN2
Undervoltage Lockout Threshold
Undervoltage Lockout Deglitch
DD
= V
+ I
, VDL, PWRGD_ to GND..................-0.3V to +4.5V
VDD
VDL
PARAMETER
DD
DD
DD
+ I
= 3.3V, V
Voltage Range
, IN1, and IN2
VDL
lower of (V
)
FB
= 0.5V, V
VDD
A
= -40°C to +85°C, typical values are at T
+ 0.3V) and (V
SS_
= V
(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_
REFIN
LX_
= V
= V
VDL
= 0.605V
= V
= 3.6V, V
E N _
V D D
= 600mV, PGND_ = GND, R
VDD
= 1V to 2V V
= 1V to 2V V
+ 0.3V)
IN_
= 0V , V
= V
RMS
= 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
A
= +25°C, unless otherwise noted.) (Note 2)
V
V
V
V
T
T
= 2.5V to 3.3V
= 2.5V to 3.3V
T
T
= 0.7V
A
A
T
T
A
A
IN
IN
VDD
VDD
A
A
= +25°C
= +85°C
= +25°C
= +85°C
FSYNC
= 2.5V
= 3.3V
= +25°C
= +85°C
= 2.5V
= 3.3V
= 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
BST_
V
0.606
0.606
MAX
3.60
2.25
VDD
300
3.5
2.2
1.6
15
11
25
5
2
= 0.1µF, C
-
UNITS
V/µs
mA
mA
mA
µA
µA
nA
µs
Ω
V
V
V
V
V
V
SS
=