Micrel, Inc.

MIC2940A/2941A

July 2007

3

M9999-071307

Absolute Maximum Ratings

If Military/Aerospace specified devices are required,

contact your local Micrel representative/distributor for

availability and specifications

Power Dissipation (Note 1) .......................Internally Limited

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

Storage Temperature ................................–65°C to +150°C

Operating Junction Temperature ..............–40°C to +125°C

TO-220 (

TO-263 (

Input Supply Voltage ...................................... –20V to +60V

Operating Input Supply Voltage .......................... 2V

Adjust Input Voltage (Notes 9 and 10) ......... –1.5V to +26V

Shutdown Input Voltage................................ –0.3V to +30V

Error Comparator Output Voltage ................. –0.3V to +30V

for full output current is 4.3V to 26V. Output will remain in-regulation at

lower output voltages and low current loads down to an input of 2V at

25°C.

Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Units

Output Voltage Accuracy

–1

–2

–2.5

1

2

2.5

%

%

%

∆T

Output Voltage Temperature

Coefficient

(Note 2)

20

100

ppm/°C

Line Regulation

0.06

0.50

%

Load Regulation

0.04

0.16

0.20

%

%

Dropout Voltage (Note 4)

60

200

350

400

150

180

250

320

450

600

600

mV

mV

mV

mV

mV

mV

mV

Ground Pin Current (Note 5)

240

3

22

35

500

4.5

6

35

45

70

µA

mA

mA

mA

mA

mA

Ground Pin Current at Dropout

(Note 5)

330

600

µA

Current Limit

1.6

3.5

A

Thermal Regulation

(Note 7)

0.05

0.2

%/W

Output Noise Voltage

(10Hz to 100kHz)

400

260