LM4510SDEV datasheet(4/23 Pages) TI1

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LM4510

SNVS533C – SEPTEMBER 2007 – REVISED MAY 2013

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Electrical Characteristics

(1) (2)

Limits in standard type face are for TJ = 25°C only. Limits in boldface type apply over the full operating junction temperature

range (

−40°C ≤ TJ ≤+125°C). Unless otherwise stated the following conditions apply: VIN = 3.6V, EN = 3.6V.

Parameter

Test Conditions

Min (1)

Typ (2)

Max (1)

Units

VFB

FB Pin Voltage

2.7V

≤ VIN ≤ 5.5V

1.24

1.265

1.29

IFB

FB Pin Bias Current(3)

0.050

1.5

µA

NMOS Switch RDS(on)

ISW = 0.3A

0.45

1.1

RDS(on)

PMOS Switch RDS(on)

ISW = 0.3A, VOUT = 10V

0.9

1.1

ICL

NMOS Switch Current Limit

1.0

1.2

1.8

Device Switching

EN = 3.6V, FB = COMP

1.7

2.5

Non-switching Current

EN = 3.6V, FB > 1.29V

0.8

2.0

Shutdown Current

EN = 0V

0.002

0.050

µA

SW Leakage Current(3)

SW = 20V

0.01

0.150

µA

IVOUT

VOUT Bias Current(3)

VOUT = 20V

150

µA

PMOS Switch Leakage

SW = 0V, VOUT = 20V

IVL

0.001

0.100

µA

Current

fSW

Switching Frequency

0.85

1.0

1.2

MHz

DMAX

Maximum Duty Cycle

FB = 0V

DMIN

Minimum Duty Cycle

Error Amplifier

130

200

µmho

Transconductance

Device Enable

HIGH

1.2

0.81

Threshold

Device Shutdown

LOW

0.78

0.4

IEN

EN Pin Bias Current

0 < EN < 3.6V

3.2

8.0

µA

ON Threshold

18.0

19.7

20.7

FB Fault

Feedback Fault Protection

Protection

OFF Threshold

17.0

18.7

20.0

ON Threshold

2.5

2.65

UVLO

Input Undervoltage Lockout

OFF Threshold

2.1

2.35

ISS

Soft-Start Pin Current(4)

11.3

µA

(1)

All limits specified at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are

production tested, specified through statistical analysis or by design. All limits at temperature extremes are specified via correlation

using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

(2)

Typical numbers are at 25°C and represent the most likely norm.

(3)

Current flows into the pin.

(4)

Current flows out of the pin.

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