MIC2168MM datasheet(3/14 Pages) MICREL

3 / 14 page

November 2003

M9999-111803

MIC2168

Micrel

Absolute Maximum Ratings(1)

Supply Voltage (V

IN) .................................................. 15.5V

Booststrapped Voltage (V

BST) ............................... VIN +5V

Junction Temperature (T

J) ................. –40°C ≤ TJ ≤+125°C

Storage Temperature (T

S) ....................... –65°C to +150°C

Operating Ratings(2)

Supply Voltage (V

IN) .................................... +3V to +14.5V

Output Voltage Range ........................... 0.8V to V

IN × DMAX

Package Thermal Resistance

JA 10-lead MSOP ............................................ 180°C/W

Electrical Characteristics(3)

J = 25°C, VIN = 5V, unless otherwise specified. Bold values indicate –40°C < TJ < +125°C

Parameter

Condition

Min

Typ

Max

Units

Feedback Voltage Reference

(

± 1%)

0.792

0.8

0.808

Feedback Voltage Reference

(

± 2% over temp)

0.784

0.8

0.816

Feedback Bias Current

100

Output Voltage Line Regulation

0.03

% / V

Output Voltage Load Regulation

0.5

Output Voltage Total Regulation

≤ V

IN ≤ 14.5V; 1A ≤ IOUT ≤ 10A; (VOUT = 2.5V)

(4)

0.6

Oscillator Section

Oscillator Frequency

900

1000

1100

kHz

Maximum Duty Cycle

Minimum On-Time(4)

Input and V

DD Supply

PWM Mode Supply Current

CS = VIN –0.25V; VFB = 0.7V (output switching but excluding

1.6

external MOSFET gate current.)

Shutdown Quiescent Current

COMP/EN = 0V

150

µA

COMP Shutdown Threshold

0.1

0.25

0.4

COMP Shutdown Blanking

COMP = 100nF

Period

Digital Supply Voltage (V

DD)VIN ≥ 6V

4.7

5.3

Notes:

Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating

the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, T

J(max),

the junction-to-ambient thermal resistance,

JA, and the ambient temperature, TA. 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 required.

Specification for packaged product only.

Guaranteed by design.

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