Rainbow-electronics MAX8569B Uživatelský manuál stáhnout pdf (Strana 2)

MAX8569A/MAX8569B

200mA Step-Up Converters in 6-Pin

SOT23 and TDFN

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

SHDN

= V

OUT

= 3.3V, V

BATT

= 2.0V, T

= -40°C to +85°C. Typical values are at T

= +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

= +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

= +25°C

1.22

1.5

Startup Voltage R

LOAD

= 2.6kΩ

= -40°C to +85°C

1.24

MAX8569A 2.0 5.5

= +25°C

2.94

3.0

3.06

MAX8569BETT30

= -40°C to +85°C

2.925 3.075

= +25°C

3.233 3.300 3.366

Output Voltage

MAX8569B

= -40°C to +85°C

3.217 3.373

= +25°C

1.208 1.228 1.248

Feedback Threshold MAX8569A

= -40°C to +85°C

1.203 1.253

= +25°C 3.5 20

Feedback Bias Current MAX8569A, V

= 1.27V

= -40°C to +85°C4

n-Channel On-Resistance I

= 100mA 0.3 0.7 Ω

p-Channel On-Resistance I

= 100mA 0.3 0.9 Ω

= +25°C

650 750

920

n-Channel Switch Current Limit

= -40°C to +85°C

600

975

Switch Maximum On-Time V

OUT

= 2.8V 3.5 5 6.5 µs

= +25°C 3 25 50

Synchronous Rectifier Zero-

Crossing Current

= -40°C to +85°C060

OUT Quiescent Current V

OUT

= 3.5V, V

= 1.3V (Note 2) 4 10 µA

OUT Shutdown Current V

OUT

= 3.5V, V

SHDN

= V

= 0V

0.05

1µA

BATT Quiescent Current V

OUT

= 3.5V, V

= 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

1 2 3 4 5 6 7 ... 10 11

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