MIC2184

Micrel, Inc.

M9999-042205

4

April 2005

Electrical Characteristics

V

–40ºC < T

Parameter

Condition

Min

Typ

Max

Units

Regulation

Feedback Voltage Reference

(±1%)

1.233

1.245

1.257

V

(±2%)

1.22

1.27

V

Feedback Bias Current

50

nA

Output Voltage Line Regulation

0.04

% / V

Output Voltage Load Regulation

0mV < (V

0.9

%

Output Voltage Total Regulation

1.208

1.282

V

Input & V

V

0.7

mA

V

(Excluding external MOSFET gate current)

1.0

mA

Shutdown Quiescent Current

V

0.5

5

µA

Digital Supply Voltage (V

2.82

3.0

3.18

V

Digital Supply load regulation

I

0.03

V

Undervoltage Lockout

V

2.75

V

UVLO Hysteresis

100

mV

Reference Output(VREF)

Reference Voltage

(±1.5%)

1.226

1.245

1.264

V

(±2.5%)

1.213

1.276

V

Reference Voltage Line

5V < V

2

mV

Regulation

Reference Voltage Load

0 < I

mV

Regulation

Enable/UVLO

Enable Input Threshold

0.6

0.9

1.2

V

UVLO Threshold

(Turn-on threshold)

1.4

1.5

1.6

V

UVLO Hysteresis

140

mV

Enable Input Current

V

0.2

5

µA

Supply Voltage (V

Digital Supply Voltage (V

Comp Pin Voltage (V

Feedback Pin Voltage (V

Enable Pin Voltage (V

Current Sense Voltage (V

Sync Pin Voltage (V

Freq/2 Pin Voltage (V

Power Dissipation (P

16 lead SOIC ................................. 400mW @ T

16 lead QSOP ............................... 245mW @ T

Ambient Storage Temp ............................ –65°C to +150°C

ESD Rating, ............................................................. Note 3

Supply Voltage (V

Output Voltage Range ...................................... 1.3V to 12V

PackageThermal Resistance