MIC2193YM Micrel Inc, MIC2193YM Datasheet - Page 3

• Manufacturer Part Number: MIC2193YM
• Description: IC PWM BUCK CM 8SOIC
• Manufacturer: Micrel Inc

Specifications of MIC2193YM

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 440kHz
• Duty Cycle: 100%
• Voltage - Supply: 2.9 V ~ 14 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-SOIC (3.9mm Width)
• Frequency-max: 440kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Absolute Maximum Ratings
Supply Voltage (V
Digital Supply Voltage (V
Comp Pin Voltage (V
Feedback Pin Voltage (V
Current Sense Voltage (V
Power Dissipation (P
Ambient Storage Temp ............................ –65 C to +150 C
ESD Rating Note 3 ....................................................... 2kV
Electrical Characteristics
V
Parameter
Regulation
Feedback Voltage Reference
Feedback Bias Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Output Voltage Total Regulation
Input & V
V
Digital Supply Voltage (V
Digital Supply Load Regulation
Undervoltage Lockout
UVLO Hysteresis
Current Limit
Current Limit Threshold Voltage
Error Amplifier
Error Amplifier Gain
Current Amplifier
Current Amplifier Gain
Oscillator Section
Oscillator Frequency (f
Maximum Duty Cycle
Minimum On Time
Frequency Foldback Threshold
Frequency Foldback Frequency
April 2004
MIC2193
IN
IN
= 5V, V
Input Current (I
DD
OUT
Supply
= 3.3V, T
Q
IN
)
) ..................................................... 15V
O
D
COMP
)
) ..................... 285mW @ T
DD
J
= 25 C, unless otherwise specified. Bold values indicate –40 C<T
)
DD
FB
IN
) ............................ –0.3V to +3V
) .......................... –0.3V to +3V
) ........................................... 7V
– V
CS
Condition
(1%)
(2%)
5V
0mV < (V
5V V
(excluding external MOSFET gate current)
I
I
V
V
V
V
Measured on FB
L
L
DD
IN
FB
FB
) ................ –0.3V to +1V
= 0
= 0 to 1mA
– V
= 1.0V
= 1.5V
upper threshold (turn on threshold)
V
IN
IN
CS
(Note 1)
IN
12V, 0mV < (V
12V
voltage to trip current limit
– V
CS
) < 75mV
A
= 85 C
IN
– V
CS
3
) < 75mV ( 3%)
Operating Ratings
Supply Voltage (V
Junction Temperature ....................... –40 C
Package Thermal Resistance
JA
8-lead SOP ................................................. 140 C/W
IN
) .................................... +2.9V to +14V
J
<+125 C.
(Note 2)
1.233
1.208
1.22
2.82
Min
360
100
90
1.245
1.245
0.09
2.65
Typ
110
165
100
400
0.9
3.0
0.1
3.0
0.3
50
20
90
1
1.257
1.282
Max
1.27
3.18
130
440
T
M9999-042704
2
J
+125 C
Micrel
Units
% / V
V/V
V/V
kHz
kHz
mA
mV
mV
nA
ns
%
%
V
V
V
V
V
V
V