MIC5355 datasheet(3/18 Pages) MICREL

3 / 18 page

Micrel, Inc.

MIC5355/6

March 2012

M9999-031512-A

Absolute Maximum Ratings(1)

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

Enable Voltage (VEN1, VEN2). ....................–0.3V to VIN +0.3V

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

(3)

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

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

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

ESD Rating

(4)................................................. ESD Sensitive

Operating Ratings(2)

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

Enable Voltage (VEN1, VEN2). ................................... 0V to VIN

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

Junction Thermal Resistance

8-Pin ePad MSOP (θJA)..................................64.4°C/W

8-Pin ePad 3mm x 3mm MLF

® (θ

JA).................. 61°C/W

Electrical Characteristics(5)

VIN = VEN1 = VEN2 = VOUT +1V; higher of the two outputs; IOUTLDO1 = IOUTLDO2 = 100µA; COUT1 = COUT2= 2.2 µF; TJ = +25C,

bold values indicate –40°C to +125°C, unless noted.

Parameter

Condition

Min.

Typ.

Max.

Units

Variation from nominal VOUT

2.0

+2.0

Output Voltage Accuracy

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

IOUT = 100µA to 500mA

0.3

IOUT = 50mA

100

Dropout Voltage

IOUT = 500mA

350

800

VEN1 = High; VEN2 = Low; IOUT1 = 0mA

VEN1 = Low; VEN2 = High; IOUT2 = 0mA

VEN1 = VEN2 = High; IOUT1 = IOUT2 = 0mA

100

VEN1 = High; VEN2 = Low; IOUT1 = 500mA

VEN1 = Low; VEN2 = High; IOUT2 = 500mA

Ground Pin Current

VEN1 = VEN2 = High; IOUT1 = IOUT2 = 500mA

105

200

µA

Shutdown Current

VEN1 = VEN2 0.2V

0.05

µA

Ripple Rejection

f = 1kHz; COUT = 2.2µF; IOUT = 250mA

Current Limit

VOUT = 0V

525

750

1050

Output Voltage Noise

COUT = 2.2µF, 10Hz to 100kHz

146

µVRMS

Auto-Discharge NFET

Resistance

MIC5356 only; VEN1 = VEN2 = 0V; VIN = 3.6V; IOUT = 3mA

Ω

Notes:

Exceeding the absolute maximum rating may 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 register will go into thermal shutdown.

Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.

Specification for packaged product only.

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