MIC5524 datasheet(3/13 Pages) MICREL

3 / 13 page

Micrel, Inc.

MIC5524

May 15, 2013

Revision 1.0

Absolute Maximum Ratings

(4)

Supply Voltage (VIN) .......................................... –0.3V to 6V

Enable Voltage (VEN)......................................... –0.3V to VIN

Power Dissipation (PD) ........................... Internally Limited

(6)

Lead Temperature (soldering, 10s)............................ 260°C

Junction Temperature (TJ) ........................–40°C to +150°C

Storage Temperature (Ts) .........................–65°C to +150°C

ESD Rating

(7).................................................................. 3kV

Operating Ratings

(5)

Supply Voltage (VIN)......................................... 2.5V to 5.5V

Enable Voltage (VEN).............................................. 0V to VIN

Junction Temperature (TJ) ........................ –40°C to +125°C

Junction Thermal Resistance

1mm × 1mm Thin DFN-4 (

JA) ......................... 250°C/W

Electrical Characteristics

(8)

VIN = VEN = VOUT + 1V; CIN = COUT = 2.2µF; IOUT = 100µA; TJ = 25°C, bold values indicate –40°C to 125°C, unless noted.

Parameter

Condition

Min.

Typ.

Max.

Units

Output Voltage Accuracy

Variation from nominal VOUT

–2.0

±1

+2.0

Variation from nominal VOUT

–3.0

+3.0

Line Regulation

VIN = VOUT +1V to 5.5V; IOUT = 100µA

0.02

0.3

%/V

Load Regulation

(9)

IOUT = 100µA to 500mA

Dropout Voltage

(10)

IOUT = 150mA

IOUT = 500mA

260

175

500

Ground Pin Current

(11)

IOUT = 0mA

IOUT = 500mA

µA

Ground Pin Current in Shutdown

VEN = 0V

0.05

µA

Ripple Rejection

f = 100Hz

f = 1kHz

Current Limit

VOUT = 0V

525

800

Output Voltage Noise

f =10Hz to 100kHz

µVRMS

Auto-Discharge NFET Resistance

VEN = 0V; VIN = 3.6V

IOUT = –3mA

Ω

Enable Input

Enable Pulldown Resistor

MΩ

Enable Input Voltage

Logic Low

0.2

Logic High

1.2

Enable Input Current

VEN = 0V

0.01

µA

VEN = 5.5V

1.4

Turn-On Time

IOUT = 150mA

125

µs

Notes:

Exceeding the absolute maximum rating can damage the device.

The device is not guaranteed to function outside its operating rating.

The maximum allowable power dissipation of any TA (ambient temperature) is PD(max) = (TJ(max) – TA) /

JA. Exceeding the maximum allowable power

dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.

Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5k

Ω in series with 100pF.

Specification for packaged product only.

Regulation is measured at constant junction temperature using low duty cycle pulse testing. Changes in output voltage due to heating effects are

covered by the thermal regulation specification.

10. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V

differential. For outputs below 2.5V, dropout voltage is the input-to-output differential with the minimum input voltage 2.5V.

11. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin

current.

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