MIC5166YML datasheet(4/25 Pages) MICREL

4 / 25 page

Micrel, Inc.

MIC5166

June 2012

M9999-060612-A

Electrical Characteristics(6) (Continued)

VIN = 1.5V, VBIAS = 3.3V, VDDQ = 1.5V, TA = 25°C, unless noted. Bold values indicate –40°C ≤ TJ ≤ +125°C.

Parameter

Condition

Min.

Typ.

Max.

Units

VREF Output

VREF Voltage Accuracy

Variation from (VDDQ/2), IREF = -10mA to 10mA

−1

Bias Supply Dropout Voltage

Dropout Voltage (VBIAS – VTT)

IOUT = 100mA

1.15

Dropout Voltage (VBIAS – VTT)

IOUT = 500mA

1.25

Dropout Voltage (VBIAS – VTT)

IOUT = 3.0A

1.65

2.2

Enable Control

EN Logic High Level

Logic High

1.2

EN Logic Low Level

Logic Low

0.2

VEN = 0.2V

1.0

EN Current

VEN = 1.2V

6.0

µA

Start-Up Time

From EN pin going high to VTT 90% of VREF

µs

Short-Current Protection

Sourcing Current Limit

VIN = 2.7V, VTT = 0V

3.1

4.9

7.8

Sinking Current Limit

VIN = 2.7V, VTT = VIN

−3.1

−4.9

−7.8

Internal FETs

Top-MOSFET RDS(ON)

Source, IOUT = 3A (VTT to PGND)

130

190

mΩ

Bottom-MOSFET RDS(ON)

Sink, IOUT = -3A (VIN to VTT)

130

190

mΩ

Power Good (PG)

PG Window

Threshold % of VTT from VREF

≥90

≤110

Hysteresis

PG Output Low Voltage

IPG = 4mA (sinking)

430

PG Leakage Current

VPG = 5.5V, VSNS = VREF

1.0

μA

Thermal Protection

Over-Temperature Shutdown

TJ Rising

150

°C

Over-Temperature Shutdown

Hysteresis

°C

Notes:

Exceeding the absolute maximum rating may damage the device.

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

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

If VBIAS ≤ 3.6V, then VIN(MAX) = VBIAS.

If VBIAS ≤ 4V, then VDDQ(MAX) = 2 × (VBIAS − 2.2V). If VBIAS > 4V, then VDDQ(MAX) = 3.6V.

Specification for packaged product only.

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