MIC3839BMM TR Micrel Inc, MIC3839BMM TR Datasheet - Page 4

• Manufacturer Part Number: MIC3839BMM TR
• Description: IC CTRLR DC/DC PUSH-PULL 10-MSOP
• Manufacturer: Micrel Inc

Specifications of MIC3839BMM TR

• Pwm Type: Voltage/Current Mode
• Number Of Outputs: 1
• Frequency - Max: 1MHz
• Duty Cycle: 50%
• Voltage - Supply: 2 V ~ 14 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Frequency-max: 1MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: MIC3839BMMTR; MIC3839BMMTR

MIC3838/3839
Absolute Maximum Rating
Supply Voltage (I
Supply Current ........................................................... 20mA
COMP Pin .................................................................... V
Analog Inputs (FB, ILIM, RAMP) ......... –0.3V to V
Junction Temperature .............................. –55°C to +150°C
Storage Temperature (T
Lead Temperature (soldering, 10 sec.) ................... +300°C
ESD Rating, Note 3 ...................................................... 2kV
Electrical Characteristics
T
Parameter
Internal Reference Section
Output voltage
Line Regulation
Load Regulation
Oscillator Section
Oscillator Frequency
Oscillator Amplitude/V
Error Amp Section
Input Voltage
Input Bias Current
Open Loop Voltage Gain
COMP Sink Current
COMP Source Current
COMP PM Clamp Voltage
PWM Section
Maximum Duty Cycle
Minimum Duty Cycle
Current Sense Section
Gain
I
I
Ramp or I
Ramp or I
I
COMP to Ramp Offset
Output Section
OUT Low Level
OUT High Level
Rise Time
Fall Time
MIC3838/3839
LIM
LIM
LIM
A
OUTA/OUTB Source Current (peak) ...................... –0.5A
OUTA/OUTB Sink Current (peak) ............................ 1.0A
= T
Maximum Input Signal
to Output Delay
Over Current Threshold
J
= –40°C to +85°C, V
LIM
LIM
Source Current
Sink Current
DD
DD
≤10mA) ...................................... +15V
S
) ....................... –65°C to +150°C
DD
=10V, Note 10,1µF capacitor from V
Condition
I
MIC3838 9V ≤ V
MIC3839 5V ≤ V
I
Note 6
COMP = 2V
(Guaranteed by design)
FB = 2.2V, COMP = 1V
FB = 1.3V, COMP = 3V, Note 7
V
Measured at OUTA or OUTB
COMP = 0V
Guaranteed by design, Note 8
Note 9
COMP = 3V, I
Ramp = I
Ramp = I
I = 100mA
I = –50mA, V
C
C
OUT
OUT
FB
L
L
= 1nF
= 1nF
(Note 5)
= 0V
NOT TO EXCEED 6V
= 0mA
= 1mA
(Note 1)
LIM
LIM
= 0.5V, RC = 5.5V Note 10
= 0V
DD
LIM
– OUT
DD
DD
from 0mV to 600mV
DD
≤12V
≤12V
+0.3V
DD
4
DD
Operating Ratings
V
Oscillator Frequency (f
Ambient Temperature (T
Package Thermal Resistance
to GND, R=22kΩ, C=330pF.
DD
MSOP-10 (θ
Input Voltage (V
JA
) .................................................. 115°C/W
DD
OSC
) .......................................... Note 4
A
) ......................... –40°C to +85°C
(Note 2)
) ....................... 10kHz to 1MHz
–0.15
–200
2.85
0.44
1.95
0.45
0.35
Min
180
0.3
3.1
1.9
0.7
–1
60
48
5
–0.5
0.75
Typ
200
3.0
0.5
2.5
3.6
2.2
0.5
0.8
0.5
0.5
49
70
14
80
10
25
25
2
2
Max
3.15
0.56
2.05
0.55
220
200
4.0
2.5
0.8
1.2
10
30
50
60
60
1
0
1
1
April 2005
Micrel
V/V
Units
kHz
V/V
mV
mV
mA
mA
mA
µA
dB
nA
ns
ns
ns
%
%
V
V
V
V
V
V
V
V
DD