AS1346 datasheet(5/16 Pages) AMSCO

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www.ams.com/DC-DC_Step-Down

Revision 1.10

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AS1346-49

Datasheet - Electrical Characteristics

RDSON2(P)

Pin-Pin Resistance for PMOS2

VDD = 5.0V, ISW = 200mA

150



RDSON2(N)

Pin-Pin Resistance for NMOS2

VDD = 5.0V, ISW = 200mA

250



Enable

VIH,EN

Logic high input threshold

1.2

VIH,EN

Logic low input threshold

0.5V

Low Battery & Power-OK

VLBI

LBI Threshold

Falling Edge

1.16

1.2

1.24

LBI Hysteresis

LBI Leakage Current

LBI = 5V, TA = 25°C

LBO Voltage Low

ILBO = 0.1mA

0.05

LBO Leakage Current

LBO = 5V, TA = 25°C

Power-OK Threshold

LBI = 0V, Falling Edge

1. The dynamic supply current is higher due to the gate charge delivered at the switching frequency. The Quiescent Current is measured

while the DC-DC Converter is not switching.

2. LBO goes low in startup mode as well as during normal operation if,

1) The voltage at the LBI pin is higher than LBI threshold.

2) The voltage at the LBI pin is below 0.1V (connected to GND) and VOUT1 is below 92.5% of its nominal value.

Table 4. Electrical Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Units

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