Datasheet

MAX8569A/MAX8569B
200mA Step-Up Converters in 6-Pin
SOT23 and TDFN
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
SHDN
= V
OUT
= 3.3V, V
BATT
= 2.0V, T
A
= -40°C to +85°C. Typical values are at T
A
= +25°C, unless otherwise noted.) (Note 1)
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.
BATT, LX, OUT, FB, RST to GND .............................-0.3V to +6V
SHDN to GND...........................................-0.3V to (V
OUT
+ 0.3V)
LX Current ....................................................................1.5A Peak
Continuous Power Dissipation (T
A
= +70°C)
6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW
6-Pin TDFN 3mm x 3mm
(derate 18.2mW/°C above +70°C).............................1454mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER CONDITIONS
MIN TYP MAX
UNITS
Battery Input Range 1.5 5.5 V
T
A
= +25°C
1.22
1.5
Startup Voltage R
LOAD
= 2.6kΩ
T
A
= -40°C to +85°C
1.24
V
MAX8569A 2.0 5.5
T
A
= +25°C
2.94
3.0
3.06
MAX8569BETT30
T
A
= -40°C to +85°C
2.925 3.075
T
A
= +25°C
3.233 3.300 3.366
Output Voltage
MAX8569B
T
A
= -40°C to +85°C
3.217 3.373
V
T
A
= +25°C
1.208 1.228 1.248
Feedback Threshold MAX8569A
T
A
= -40°C to +85°C
1.203 1.253
V
T
A
= +25°C 3.5 20
Feedback Bias Current MAX8569A, V
FB
= 1.27V
T
A
= -40°C to +85°C4
nA
n-Channel On-Resistance I
LX
= 100mA 0.3 0.7 Ω
p-Channel On-Resistance I
LX
= 100mA 0.3 0.9 Ω
T
A
= +25°C
650 750
920
n-Channel Switch Current Limit
T
A
= -40°C to +85°C
600
975
mA
Switch Maximum On-Time V
OUT
= 2.8V 3.5 5 6.5 µs
T
A
= +25°C 3 25 50
Synchronous Rectifier Zero-
Crossing Current
T
A
= -40°C to +85°C060
mA
OUT Quiescent Current V
OUT
= 3.5V, V
FB
= 1.3V (Note 2) 4 10 µA
OUT Shutdown Current V
OUT
= 3.5V, V
SHDN
= V
FB
= 0V
0.05
1µA
BATT Quiescent Current V
OUT
= 3.5V, V
FB
= 1.3V (Note 3) 3 10 µA
BATT Shutdown Current V
OUT
= 3.5V, V
SHDN
= 0V
0.01
1µA
SHDN Logic-Low 0.3 V