AAT2506

1MHz Step-Down Converter/LDO Regulator

2506.2006.05.1.3

5

Symbol

Description

Conditions

Min

Typ Max

Units

Input Voltage

2.7

5.5

V

2.6

V

UVLO Threshold

Hysteresis

100

mV

1.8

V

Output Voltage Tolerance

-3.5

+3.5

%

Output Voltage Range

0.6

V

Step-Down Converter

ENLDO = GND, No Load,

25

50

µA

Quiescent Current

0.6V Adjustable Model

Shutdown Current

EN = SGND = PGND, ENLDO = GND

1.0

µA

P-Channel Current Limit

600

mA

High Side Switch On

0.45

Ω

Resistance

Low Side Switch On

0.40

Ω

Resistance

LX Leakage Current

1.0

µA

EN = SGND = PGND

1.0

µA

(fixed)

EN = SGND = PGND

Line Regulation

0.5

%/V

FB Threshold Voltage

591

600

609

mV

Accuracy

FB Leakage Current

0.6V Output

0.2

µA

Oscillator Frequency

0.7

1.0

1.5

MHz

Start-Up Time

From Enable to Output Regulation

100

µs

Over-Temperature Shutdown

140

°C

Threshold

Over-Temperature Shutdown

15

°C

Hysteresis

Logic Signals

Enable Threshold Low

0.6

V

Enable Threshold High

1.5

V

Leakage Current

1.0

1.0

µA

1. The AAT2506 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured

by design, characterization, and correlation with statistical process controls.