LV5256GP Ver la hoja de datos (PDF) - SANYO -> Panasonic

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componentes Descripción

fabricante

LV5256GP

Operating Mode Switching Type Step-Up/Down Converter

SANYO -> Panasonic 

LV5256GP

Continued from preceding page.

Parameter

Symbol

Conditions

Therml protection, UVLO

Thermal protection operating

Tot

temperature

Thermal protection hysteresis

Dot

Design guarantee value *2

Design guarantee value *2

UVLO lock release voltage 1

VuvloH

REG_O monitored

UVLO lock voltage 1

VuvloL

REG_O monitored

UVLO lock release voltage 2

UVLO lock voltage 2

Oscillator

VuvloH2

VuvloL2

VIN pin voltage

VIN pin voltage

Oscillation frequency

F

RT = 100kΩ

Oscillation frequency range

R_F

Triangular wave lower-side

threshold value

Triangular wave upper-side

threshold value

Power supply pin block

VtriL

VtriH

RT = 100kΩ

RT = 100kΩ

Current drain

Vout-5V Regulator

Ivin1

Ivin2

Ivdd1

VIN pin, when converter is in 1MHz operation

mode.

VIN pin, when in ONOFF stop mode.

VDD pin, when in ONOFF stop mode.

Output voltage

Voutm5

Vout-5V regulator, VOUT = 10.0V

Drooping current

Ivoutm5

Vout-5V regulator

Internal 3.3V Regulator

Output voltage

Vreg_o

Ireg_o = 2.0mA

Drooping current

Output characteristics

Ireg_o

Vreg_o = 2V, VIN = 5V

Main switch on resistance (Pch)

Main switch on resistance (Nch)

Through current prevention dead

time

Maximum on-duty (step-down)

RonH

RonL

Tdead

DMAX1

VIN = 5V

VIN = 5V

RT = 100kΩ

Maximum on-duty (step-up)

DMAX2

RT = 100kΩ

Converter characteristics

Efficiency

Line regulation

Load regulation

Step-down

Step-up

Step-down

Step-up

Step-down

Step-up

η1

η2

∆V1/VIN

∆VOUT1/VIN

∆V1/IO

∆VOUT1/IO

VIN = 5.0V, V = 4.6V, IO = 200mA

VIN = 5.0V, VOUT1 = 6.6V, IO = 200mA

VIN = 4.5 to 8.6V, V1 = 4.6V, IO = 200mA

VIN = 4.5 to 5.5V, VOUT1 = 6.6V, IO = 200mA

VIN = 8.4V, V1 = 4.6V, IO = 0 to 200mA

VIN = 5.0, VOUT1 = 6.6V, IO = 200mA

*1 IN pin voltage is the detection point. The lowest voltage among Vref, TRAC_IN, and SS is used.

*2 Design guarantee value, and no measurement is performed.

min

0.8

0.3

VOUT-4.5

3.0

0

0

0

0

Ratings

typ

max

175

20

2.8

2.5

3.8

3.5

1

1.2

1.5

0.5

1.0

2

4

1.0

1.0

VOUT-5 VOUT-5.5

20

3.3

3.6

10

0.7

0.7

25

100

85

93

93

Unit

°C

°C

V

V

V

V

MHz

MHz

V

V

mA

µA

µA

V

mA

V

mA

Ω

Ω

ns

%

%

%

%

%

%

No.A1277-3/9

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