SC508 Ver la hoja de datos (PDF) - Semtech Corporation

Número de pieza

componentes Descripción

Fabricante

SC508

EcoSpeed® DC-DC Buck Controller with Integrated LDO

Semtech Corporation 

SC508/SC508A

Electrical Characteristics (continued)

Parameter

Fault Protection

ILIM Source Current

ILIM Source Current Temperature Coefficient

ILIM Comparator Offset

Output Under-Voltage Threshold

Smart Power-Save Protection Threshold

Over-Voltage Protection Threshold

Over-Voltage Fault Delay

Over-Temperature Shutdown

Logic Inputs/Outputs

Logic Input High Voltage — EN

Logic Input High Voltage — PSV

Logic Input Low Voltage — EN, ENL(3)

EN Input Bias Current

ENL Input Bias Current

FB Input Bias Current

PSV Input Bias Current

Linear Regulator

VLDO Accuracy

Current Limit

VLDO to VOUT Switch-over Threshold (4)

VLDO to VOUT Non-switch-over Threshold (4)

VLDO to VOUT Switch-over Resistance

VLDO Drop Out Voltage

Conditions

With respect to AGND

VFB with respect to internal 600mV reference,

8 consecutive cycles

VFB with respect to internal 600mV reference

VFB with respect to internal 600mV reference

10°C hysteresis

Forced Continuous Mode operation;

PSV pin with respect to VDDA

With respect to AGND

EN = VDDA or AGND

VIN = 46V

FB = VDDA or AGND

PSV = VDDA

PSV < 1.5V

VLDO load = 10mA

VLDO < 1V start-up

1V < VLDO < 4.5V (typ)

Operating, VLDO > 4.5V (typ)

VLDO = VOUT = 5V

VIN to VLDO, LDO load = 50mA

Min Typ Max Units

9

10

11

μA

0.41

%/°C

-8

0

+8

mV

-25

%

+10

%

+20

%

5

μs

165

°C

1.4

V

-0.4

V

0.4

V

-10

+10

μA

+11

μA

-1

+1

μA

5

16

μA

1

μA

4.875 5.0 5.125

V

13

90

mA

200

-130

+130 mV

-500

+500 mV

2.0

Ω

1.2

V



Share Link: