LM3526

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SNVS054E – FEBRUARY 2000 – REVISED MARCH 2013

Absolute Maximum Ratings

(1) (2)

Supply Voltage

−0.3V to 6V

Output Voltage

−0.3V to 6V

Voltage at All Other Pins

−0.3V to 5.5V

Power Dissipation (TA = 25°C)

(3)

700 mW

TJMAX

(3)

150°C

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when

operating the device beyond its rated operating conditions.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and

specifications.

(3)

The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX (Maximum junction temperature),

θJA (junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any

temperature is PDMAX = (TJMAX − TA)/θJA or the number given in the Absolute Maximum Ratings, which ever is lower. θJA = 150°C/W.

Operating Ratings

Supply Voltage Range

2.7V to 5.5V

Operating Ambient Range

−40°C to 85°C

Operating Junction Temperature Range

−40°C to 125°C

Storage Temperature Range

−65°C to +150°C

Lead Temperature

(Soldering, 5 seconds)

260°C

ESD Rating(1)

2kV

ESD Rating Output Only

8kV

(1)

The human body model is a 100 pF capacitor discharged through a 1.5 k

Ω resistor into each pin. Enable pin ESD threshold is 1.7kV.

DC Electrical Characteristics

Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range.

Unless otherwise specified: VIN = 5.0V, VEN = 0V (LM3526-L) or VEN = VIN (LM3526-H).

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VIN = 5V, IOUT = 500mA, each switch

100

140

RON

On Resistance

m

Ω

VIN = 2.7V, IOUT = 500mA, each switch

110

180

IOUT

OUT pins continuous output

Each Output

0.5

A

current

ISC

Short Circuit Output Current

Each Output (enable into Load)(1)

A

VOUT = 4.0V

0.5

1.2

1.9

VOUT = 0.1V

1

1.5

OCTHRESH

Over-current Threshold

2.2

3.2

A

ILEAK

OUT pins Output Leakage

VEN = VIN (LM3526-L)

0.01

10

µA

Current

VEN = 0V (LM3526-H)

IFO = 10 mA, VIN = 5.0V

10

25

RFO

FLAG Output Resistance

IFO = 10 mA, VIN = 3.3V

11

35

Ω

IFO = 10 mA, VIN = 2.7V

12

40

IEN

EN/EN Leakage Current

VEN/VEN = 0V or VEN/VEN = VIN

−0.5

0.5

µA

VIH

EN/EN Input Logic High

See(2)

2.4

1.9

V

VIL

EN/EN Input Logic Low

See(2)

1.7

0.8

V

VUVLO

Under-Voltage Lockout

1.8

V

Threshold

IDDOFF

Supply Current

Switch-Off

0.2

1

µA

−40°C ≤ TJ ≤ 85°C

2

IDDON

Supply Current

Switch-On

115

200

µA

ThSD

Over-temperature Shutdown

TJ Increasing, with no shorted output

150

°C

Threshold

TJ Increasing, with shorted output (s)

145

TJ Decreasing

(1)

135

(1)

Thermal Shutdown will protect the device from permanent damage.

(2)

For LM3526-L, OFF is EN

≥ 2.4V and ON is EN ≤ 0.8V. For LM3526-H, OFF is EN ≤ 0.8V and ON is EN ≥ 2.4V.

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