MIC2185YM Micrel Inc, MIC2185YM Datasheet - Page 4

• Manufacturer Part Number: MIC2185YM
• Description: SO-16 Low Vin Synchronous Buck PWM Control IC ( )
• Manufacturer: Micrel Inc

Specifications of MIC2185YM

• Duty Cycle: 95%
• Lead Free Status: Lead free
• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 440kHz
• Voltage - Supply: 2.9 V ~ 14 V
• Buck: No
• Boost: Yes
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SOIC (3.9mm Width)
• Frequency-max: 440kHz
• Number Of Pwm Outputs: 1
• On/off Pin: Yes
• Adjustable Output: Yes
• Topology: Boost/Buck
• Switching Freq: 400KHz
• Operating Supply Voltage (max): 14V
• Synchronous Pin: Yes
• Rise Time: 50ns
• Fall Time: 50ns
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 16
• Package Type: SOIC
• Lead Free Status / RoHS Status: Compliant
• Other names: 576-1714-5; MIC2185YM

Parameter
Soft Start
Soft Start Current
Current Limit
Current Limit Threshold Voltage
Error Amplifier
Error Amplifier Gain
Current Amplifier
Current Amplifier Gain
SKIP Input
SKIP Threshold
SKIP Input Current
Oscillator Section
Oscillator Frequency (f
Maximum Duty Cycle
Minimum On Time
FREQ/2 frequency (f
Frequency Foldback Threshold
Frequency Foldback Frequency
SYNC Threshold Level
SYNC Input Current
SYNC Minimum Pulse Width
SYNC Capture Range
Gate Drivers (OUTN and OUTP)
Rise/Fall Time
Driver Non-overlap Time
Output Driver Impedance
Note 1.
Note 2.
Note 3.
Note 4.
MIC2185
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when
operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction tempera-
ture, T
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended.
See application information for limitations on maximum operating frequency.
J(max)
, the junction-to-ambient thermal resistance, θ
S
)
S
)
Condition
Voltage on CSH to trip current limit
V
V
V
V
Measured at FB pin
V
Note 4
C
V
V
Source; V
Sink; V
Source; V
Sink; V
SKIP
FB
FB
FREQ/2
FREQ/2
IN
IN
L
= 3300pF
P = 12V
P = 5V
= 1.0V
= 1.5V
= 3V
IN
IN
=3V
=0V
P = 12V
P = 5V
IN
IN
P = 12V
P = 5V
JA
, and the ambient temperature, T
4
A
.
f
O
+15 %
Min
360
170
200
0.6
0.6
Typ
100
400
180
200
3.7
1.4
0.1
0.3
1.4
0.1
20
85
90
50
70
90
5
4
3
5
5
October 2005
Max
440
230
600
2.2
2.2
11
11
5
5
8
7
Unit
kHz
kHz
kHz
V/V
V/V
mV
µA
µA
µA
ns
ns
ns
ns
ns
%
V
V
V
Ω
Ω
Ω
Ω