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MIC2182 Datasheet(PDF) 4 Page - Micrel Semiconductor

Part # MIC2182
Description  High-Efficiency Synchronous Buck Controller Final Information
PDF  28 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2182 Datasheet(HTML) 4 Page - Micrel Semiconductor

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MIC2182
Micrel
MIC2182
4
June 2000
Electrical Characteristics
V
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
V
Feedback Voltage Reference
1.220
1.245
1.270
V
Feedback Voltage Reference
4.5V < V
IN < 32V, 0 < VCSH – VOUT < 75mV
1.208
1.245
1.282
V
Feedback Bias Current
10
nA
Output Voltage Range
1.25
6
V
Output Voltage Line Regulation
V
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
V
Output Voltage
3.234
3.3
3.366
V
Output Voltage
4.5V < V
IN < 32V, 0 < VCSH – VOUT < 75mV
3.201
3.3
3.399
V
Output Voltage Line Regulation
V
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
V
Output Voltage
4.90
5.0
5.10
V
Output Voltage
6.5V < V
IN < 32V, 0 < VCSH – VOUT < 75mV
4.85
5.0
5.150
V
Output Voltage Line Regulation
V
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
V
PWM = 0V, excluding external MOSFET gate drive current
1.6
2.5
mA
Skip Mode
I
L = 0mA, VPWM floating (1nF capacitor to ground)
600
1500
µA
Shutdown Quiescent Current
V
EN/UVLO = 0V
0.1
5
µA
Digital Supply Voltage (V
DD)IL = 0mA to 5mA
4.7
5.3
V
Undervoltage Lockout
V
DD upper threshold (turn on threshold)
4.2
V
V
DD lower threshold (turn off threshold)
4.1
V
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
D)
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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