MIC2182 datasheet(4/28 Pages) MICREL

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MIC2182

Micrel

MIC2182

June 2000

Electrical Characteristics

IN = 15V; SS = open; VPWM = 0V; VSHDN = 5V; ILOAD = 0.1A; TA = 25°C, bold values indicate –40°C ≤ TA ≤ +85°C; Note 4; unless

noted

Parameter

Condition

Min

Typ

Max

Units

MIC2182 [Adjustable], (Note 5)

Feedback Voltage Reference

1.233

1.245

1.257

Feedback Voltage Reference

1.220

1.245

1.270

Feedback Voltage Reference

4.5V < V

IN < 32V, 0 < VCSH – VOUT < 75mV

1.208

1.245

1.282

Feedback Bias Current

Output Voltage Range

1.25

Output Voltage Line Regulation

IN = 4.5V to 32V, VCSH – VOUT = 50mV

0.03

%/V

Output Voltage Load Regulation

25mV < (V

CSH – VOUT) < 75mV (PWM mode only)

0.5

Output Voltage Total Regulation

0mV < (V

CSH – VOUT) < 75mV (full load range) 4.5V < VIN < 32V

0.6

MIC2182-3.3

Output Voltage

3.267

3.3

3.333

Output Voltage

3.234

3.3

3.366

Output Voltage

4.5V < V

IN < 32V, 0 < VCSH – VOUT < 75mV

3.201

3.3

3.399

Output Voltage Line Regulation

IN = 4.5V to 32V, VCSH – VOUT = 50mV

0.03

%/V

Output Voltage Load Regulation

25mV < (V

CSH – VOUT) < 75mV (PWM mode only)

0.5

Output Voltage Total Regulation

0mV < (V

CSH – VOUT) < 75mV (full load range) 4.5V < VIN < 32V

0.8

MIC2182-5.0

Output Voltage

4.95

5.0

5.05

Output Voltage

4.90

5.0

5.10

Output Voltage

6.5V < V

IN < 32V, 0 < VCSH – VOUT < 75mV

4.85

5.0

5.150

Output Voltage Line Regulation

IN = 6.5V to 32V, VCSH – VOUT = 50mV

0.03

%/V

Output Voltage Load Regulation

25mV < (V

CSH – VOUT) < 75mV (PWM mode only)

0.5

Output Voltage Total Regulation

0mV < (V

CSH – VOUT) < 75mV (full load range) 6.5V < VIN < 32V

0.8

Input and VDD Supply

PWM Mode

PWM = 0V, excluding external MOSFET gate drive current

1.6

2.5

Skip Mode

L = 0mA, VPWM floating (1nF capacitor to ground)

600

1500

µA

Shutdown Quiescent Current

EN/UVLO = 0V

0.1

µA

Digital Supply Voltage (V

DD)IL = 0mA to 5mA

4.7

5.3

Undervoltage Lockout

DD upper threshold (turn on threshold)

4.2

DD lower threshold (turn off threshold)

4.1

Absolute Maximum Ratings (Note 1)

Analog Supply Voltage (V

IN) ....................................... +34V

Digital Supply Voltage (V

DD) ......................................... +7V

Driver Supply Voltage (B

ST) .................................... VIN +7V

Sense Voltage (V

OUT, CSH) ............................. 7V to –0.3V

Sync Pin Voltage (V

SYNC) ................................ 7V to –0.3V

Enable Pin Voltage (V

EN/UVLO) ...................................... VIN

Power Dissipation (P

SOP ................................................ 400mW @ T

A= 85°C

SSOP ............................................. 270mW @ T

A= 85°C

Ambient Storage Temperature (T

S) ......... –65°C to +150°C

ESD, Note 3

Operating Ratings (Note 2)

Analog Supply Voltage (V

IN) ........................ +4.5V to +32V

Ambient Temperature (T

A) ......................... –40°C to +85°C

Junction Temperature (T

J) ....................... –40°C to +125°C

Package Thermal Resistance

SOP

(θ

JA) .......................................................... 100°C/W

SSOP

(θ

JA) ........................................................ 150°C/W

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