MIC5256

Micrel

June 2003

3

MIC5256

Electrical Characteristics

V

Symbol

Parameter

Conditions

Min

Typical

Max

Units

V

O

Output Voltage Accuracy

I

–1+1

%

–2+2

%

∆V

LNR

Line Regulation

V

0.02

0.05

%/V

∆V

LDR

Load Regulation

I

1.5

2.5

%

V

Dropout Voltage, Note 6

I

0.1

5.0

mV

I

90

150

mV

I

135

200

mV

250

mV

I

Q

Quiescent Current

V

0.2

1

µA

I

GND

Ground Pin Current, Note 7

I

90

150

µA

I

117

µA

PSRR

Power Supply Rejection

f = 10Hz, V

dB

f = 100Hz, V

dB

f = 10kHz, V

45

dB

I

LIM

Current Limit

V

160

425

mA

e

n

Output Voltage Noise

tbd

µV(rms)

Enable Input

V

IL

Enable Input Logic-Low Voltage

V

0.4

V

V

IH

Enable Input Logic-High Voltage

V

1.6

V

I

EN

Enable Input Current

V

0.01

µA

V

0.01

µA

Shutdown Resistance Discharge

500

Ω

Error Flag

V

FLG

Low Threshold

% of V

90

%

High Threshold

% of V

96

%

V

OL

Output Logic-Low Voltage

I

0.02

0.1

V

I

FL

Flag Leakage Current

flag off, V

0.01

µA

Thermal Protection

Thermal Shutdown Temperature

150

°C

Thermal Shutdown Hysteresis

10

°C

Note 1.

Exceeding the absolute maximum rating may damage the device.

Note 2.

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

Note 3.

The maximum allowable power dissipation of any T

Supply Input Voltage (V

Enable Input Voltage (V

Power Dissipation (P

Junction Temperature (T

Storage Temperature ............................... –65

°C to +150°C

Lead Temperature (soldering, 5 sec.) ....................... 260

°C

ESD, Note 4 .................................................................. 2kV

Input Voltage (V

Enable Input Voltage (V

Junction Temperature (T

Thermal Resistance

SOT-23

(θ