LM26484

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SNVS573F – SEPTEMBER 2008 – REVISED MARCH 2013

General Electrical Characteristics

(1)

entire junction temperature range for operation,

−40°C to +125°C.

(2) (3)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Operational Voltage Range

AVDD, AVIN

3.0

3.3

5.5

V

Thermal Shutdown

(4)

160

°C

Input Capacitor

C9 (Typ App Circuit)

10

µF

Quiescent Current “Off”

VIN = 3.3V,

0.03

1

µA

ENSW1, ENSW2, ENLDO = 0

(1)

Specified by design.Not productoin tested.

(2)

All voltages are with respect to the potential at the GND pin.

(3)

Min and Max limits are specified by design, test, or statistical analysis. Typical numbers represent the most likely norm.

(4)

LDO Controller

25°C. Limits appearing in boldface type apply over the entire junction temperature range for operation,

−40°C to +125°C.

(1)

(2)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Operational Voltage Range

AVIN LDO internal circuits

3.0

3.3

5.5

V

NMOS configuration

Externally configured

0.8

1.5

V

Feedback Voltage Accuracy

0.5

V

−1.5

1.5

%

−2

2

PSRR

Power Supply Ripple Rejection

−30

dB

Turn On Time

Start up from shut-down

500

µsec

Feedback Capacitor

C11 (Typ. App. Circuit)

12

pF

Output Capacitor

Capacitance for stability:

µF

10

22

ESR (Equivalent Series

0.5

Ω

Resistance)

(1)

All voltages are with respect to the potential at the GND pin.

(2)

Min and Max limits are specified by design, test, or statistical analysis. Typical numbers represent the most likely norm.

(3)

Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under

which operation of the device is specified. Operating Ratings do not imply ensured performance limits. For specified performance limits

and associated test conditions, see the Electrical Characteristics tables.

Buck Converters SW1, SW2

boldface type apply over the entire junction temperature range for operation,

−40°C to +125°C.

(1) (2)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VIN Range

AVDD=VIN1=VIN2

3.0

3.3

5.5

V

Feedback Voltage Accuracy

0.5

−1.0

+1.0

%

−1.5

+1.5

DC Line Regulation

0.174

%/V

DC Load Regulation

0.75

%/A

Oscillator Frequency

1.8

2.0

MHz

Peak Switching Current Limit

3.2

A

(1)

All voltages are with respect to the potential at the GND pin.

(2)

Min and Max limits are specified by design, test, or statistical analysis. Typical numbers represent the most likely norm.

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