Rainbow-electronics MAX8562 Manual de usuario descargar pdf (Pagina 3)

MAX8560/MAX8561/MAX8562

4MHz, 500mA Synchronous Step-Down

DC-DC Converters in SOT and TDFN

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= 3.6V, SHDN = IN, T

= -40°C to +85°C, typical values are at T

= +25°C, unless otherwise noted.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

ODO Pullup to IN (MAX8562 Only) 5 10 20 kΩ

= 5.5V, ODO = IN, T

= +25°C 0.01 0.1

Open-Drain Output Leakage I

OHLEAK

= 5.5V, ODO = IN, T

= +85°C 0.1

µA

LIMP

PFET switch 600 990 1500

Current Limit

LIMN

NFET rectifier 490 680 900

ONP

PFET switch, I

= -40mA 0.8 1.5

On-Resistance

ONN

NFET rectifier, I

= +40mA 0.4 0.82

Ω

Rectifier-Off Current Threshold I

LXOFF

03060mA

= 5.5V, LX = GND to IN, ODO = IN,

= +25°C, SHDN = GND

0.1 1

LX Leakage Current I

LXLKG

= 5.5V, LX = GND to IN, ODO = IN,

= +85°C, SHDN = GND

µA

(

MIN

)

107

Minimum On- and Off-Times

OFF

(

MIN

)

Thermal Shutdown +160 °C

Thermal-Shutdown Hysteresis 20 °C

Typical Operating Characteristics

= 3.6V, V

OUT

= 1.2V, L = 1µH (LQH32C-IRO), C

OUT

= 2.2µF, T

= +25°C, unless otherwise noted.)

EFFICIENCY vs. LOAD CURRENT

OUT

= 2.5V)

MAX8560 toc01

LOAD CURRENT (mA)

EFFICIENCY (%)

100101

100

0.1 1000

4.7µH

2.2µH

1µH

EFFICIENCY vs. LOAD CURRENT

OUT

= 1.8V)

MAX8560 toc02

LOAD CURRENT (mA)

EFFICIENCY (%)

100101

100

0.1 1000

4.7µH

2.2µH

1µH

EFFICIENCY vs. LOAD CURRENT

OUT

= 1.5V)

MAX8560 toc03

LOAD CURRENT (mA)

EFFICIENCY (%)

100101

100

0.1 1000

4.7µH

2.2µH

1µH

1 2 3 4 5 6 7 8 ... 11 12

Comentarios a estos manuales

Sin comentarios

Rainbow-electronics MAX8562 Manual de usuario Pagina 3

Comentarios a estos manuales

Relacionado con productos y manuales para Sensores Rainbow-electronics MAX8562