MIC2185YM Micrel Inc, MIC2185YM Datasheet - Page 3
![no-image](/images/manufacturer_photos/0/4/434/micrel_inc_sml.jpg)
MIC2185YM
Manufacturer Part Number
MIC2185YM
Description
SO-16 Low Vin Synchronous Buck PWM Control IC ( )
Manufacturer
Micrel Inc
Datasheet
1.MIC2185YQS.pdf
(15 pages)
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
MIC2185YM
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MIC2185YM
Manufacturer:
MICREL
Quantity:
400
Part Number:
MIC2185YM
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Absolute Maximum Ratings (Note 1)
Supply Voltage (V
Digital Supply Voltage (V
Skip Pin Voltage (V
Comp Pin Voltage (V
Feedback Pin Voltage (V
Enable Pin Voltage (V
Current Sense Voltage (V
Sync Pin Voltage (V
Freq/2 Pin Voltage (V
Power Dissipation (P
Ambient Storage Temp ............................. –65°C to +150°C
Electrical Characteristics
V
indicate –40°C < T
Parameter
Regulation
Feedback Voltage Reference
Feedback Bias Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Input & V
V
V
V
Shutdown Quiescent Current
Digital Supply Voltage (VDD)
Digital Supply Load Regulation
Undervoltage Lockout
Reference Output (V
Reference Voltage
Reference Voltage Line
Regulation
Reference Voltage Load
Regulation
Enable/UVLO
Enable Input Threshold
UVLO Threshold
UVLO Hysteresis
Enable Input Current
October 2005
IN
IN
IN
IN
16 lead SOP ...................................400mW @ T
16 lead QSOP .................................245mW@ T
A= 5V, VinP= V
A Input Current, PWM mode
P Input Current, PWM mode
A Input Current, SKIP mode
DD
Supply
J
OUT
IN
< +125°C.
SKIP
REF
A, V
SYNC
=12V, V
COMP
D
FREQ/2
)
EN/UVLO
)
) ....................................–0.3V to 7V
IN
DD
FB
) ................................–0.3V to 7V
CSH
P) .......................................... 15V
) ...............................–0.3V to 3V
) ..............................–0.3V to 3V
EN/UVLO
) ............................................ 7V
) .............................–0.3V to 7V
) ..........................–0.3V to 1V
) .......................–0.3V to 15V
Condition
(±1%)
(±2%)
3V ≤ V
3V ≤ V
0mV ≤ CSH ≤ 75mV
V
V
V
V
I
I
V
V
(±1.5%)
(±2.5%)
5V < VinA < 9V
0 < I
V
L
L
SKIP
SKIP
SKIP
EN/UVLO
DD
DD
EN/UVLO
= 0
= 0 to 0.5mA
= 5V, V
REF
upper threshold (turn on threshold)
lower threshold (turn off threshold)
= 0V
= 0V (excluding external MOSFET gate current)
= 5V
IN
IN
A ≤ 9V; 0mV ≤ CSH ≤ 75mV; (±3%)
A ≤ 9V
< 100µA
SKIP
= 0V; (I
= 5V
= 0V, V
VINA
A
A
= 85°C
= 85°C
FREQ/2
+ I
VINP
)
= 0V, V
3
Operating Ratings
Supply Voltage (V
Operating Ambient Temperature ...........–40°C ≤ T
Junction Temperature .........................–40°C ≤ T
PackageThermal Resistance
ESD Rating, Note 3
CSH
θ
θ
JA
JA
16-lead SOP ................................................ 100°C/W
16-lead QSOP ............................................. 163°C/W
= 0V, T
J
= 25°C, unless otherwise specified. Bold values
IN
A, V
IN
P) ......................... +2.9V to +14V
(Note 2)
1.233
1.220
1.208
1.226
1.213
Min
2.8
2.9
0.6
1.4
1.245
1.245
+0.08
1.245
–1.2
0.03
2.75
2.65
Typ
140
0.8
3.8
0.6
0.5
3.0
0.9
1.5
0.2
50
2
1
1.258
1.270
1.282
1.264
1.276
Max
3.2
1.2
1.6
5
J
A
≤ +125°C
MIC2185
≤ +85°C
Units
% / V
mA
mA
mA
mV
mV
mV
nA
µA
µA
%
V
V
V
V
V
V
V
V
V
V
V