MIC2184BQS Micrel Inc, MIC2184BQS Datasheet - Page 4

• Manufacturer Part Number: MIC2184BQS
• Description: IC CTRLR PWM BUCK LV 16-QSOP
• Manufacturer: Micrel Inc

Specifications of MIC2184BQS

• 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: 16-QSOP
• Frequency-max: 440kHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MIC2184
Absolute Maximum Ratings
Supply Voltage (V
Digital Supply 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
ESD Rating, ............................................................. Note 3
Electrical Characteristics
V
–40ºC < T
Parameter
Regulation
Feedback Voltage Reference
Feedback Bias Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Output Voltage Total Regulation
Input & V
V
V
Shutdown Quiescent Current
Digital Supply Voltage (V
Digital Supply load regulation
Undervoltage Lockout
UVLO Hysteresis
Reference Output(VREF)
Reference Voltage
Reference Voltage Line
Regulation
Reference Voltage Load
Regulation
Enable/UVLO
Enable Input Threshold
UVLO Threshold
UVLO Hysteresis
Enable Input Current
M9999-042205
IN
IN
IN
16 lead SOIC ................................. 400mW @ T
16 lead QSOP ............................... 245mW @ T
A = V
A Input Current
P Input Current, Note 4
IN
DD
J
P = V
< +125ºC.
Supply
CSH
IN
= 5V, V
A, V
SYNC
D
COMP
FREQ/2
)
DD
EN/UVLO
IN
)
DD
FB
) ................................ –0.3V to 7V
OUT
CSH–
P) ......................................... 15V
) ............................ –0.3V to +3V
) .......................... –0.3V to +3V
) ........................................... 7V
) ............................ -0.3V to 7V
= 3.3V, V
V
) ..................... –0.3V to 15V
CSL
Condition
(±1%)
(±2%)
5V ≤ V
0mV < (V
5V ≤ V
(Excluding external MOSFET gate current)
V
I
I
V
(±1.5%)
(±2.5%)
5V < V
0 < I
(Turn-on threshold)
V
L
L
EN/UVLO
DD
EN/UVLO
= 0
= 0 to 1mA
) ............... –0.3V to 1V
REF
upper threshold (turn on threshold)
EN/UVLO
IN
IN
IN
(Note 1)
A ≤ 12V, 0mV < (V
A < 12V
< 100µA
≤ 12V
CSH
= 0V; (I
= 5V
– V
= 5V, V
CSL
VINA
A
A
) < 75mV
= 85°C
= 80°C
FREQ/2
+ I
VINP
CSH
= 0V, T
)
4
– V
Operating Ratings
Supply Voltage (V
Ambient Operating Temperature ......... –40°C ≤ T
Junction Temperature ....................... –40°C ≤ T
Output Voltage Range ...................................... 1.3V to 12V
PackageThermal Resistance
CSL
J
θ
θ
= 25ºC, unless otherwise specified. Bold values indicate
JA
JA
) < 75mV (±3%)
16-lead SOP ............................................... 100°C/W
16-lead QSOP ............................................. 163°C/W
IN
A, V
IN
P) ........................ +2.9V to +14V
(Note 2)
1.233
1.208
1.226
1.213
1.22
2.82
Min
0.6
1.4
1.245
1.245
2.75
0.04
0.03
Typ
100
140
0.9
0.7
1.0
0.5
3.0
0.9
1.5
0.2
50
2
1
1.257
1.282
1.264
1.276
Max
1.27
3.18
1.2
1.6
5
5
J
Micrel, Inc.
A
April 2005
≤ +125°C
≤ +85°C
Units
% / V
mA
mA
mV
mV
mV
mV
nA
µA
µA
%
V
V
V
V
V
V
V
V
V
V