OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MIC2184YM-TR

P1-P3P4-P6P7-P9P10-P12
MIC2184 Micrel, Inc.
M9999-042205 4 April 2005
Electrical Characteristics
V
IN
A = V
IN
P = V
CSH
= 5V, V
OUT
= 3.3V, V
EN/UVLO
= 5V, V
FREQ/2
= 0V, T
J
= 25ºC, unless otherwise specified. Bold values indicate
–40ºC < T
J
< +125ºC.
Parameter Condition Min Typ Max Units
Regulation
Feedback Voltage Reference (±1%) 1.233 1.245 1.257 V
(±2%) 1.22 1.27 V
Feedback Bias Current 50 nA
Output Voltage Line Regulation 5V ≤ V
IN
≤ 12V 0.04 % / V
Output Voltage Load Regulation 0mV < (V
CSH
– V
CSL
) < 75mV 0.9 %
Output Voltage Total Regulation 5V ≤ V
IN
A ≤ 12V, 0mV < (V
CSH
– V
CSL
) < 75mV (±3%) 1.208 1.282 V
Input & V
DD
Supply
V
IN
A Input Current 0.7 mA
V
IN
P Input Current, Note 4 (Excluding external MOSFET gate current) 1.0 mA
Shutdown Quiescent Current V
EN/UVLO
= 0V; (I
VINA
+ I
VINP
) 0.5 5 µA
Digital Supply Voltage (V
DD
)I
L
= 0 2.82 3.0 3.18 V
Digital Supply load regulation I
L
= 0 to 1mA 0.03 V
Undervoltage Lockout V
DD
upper threshold (turn on threshold) 2.75 V
UVLO Hysteresis 100 mV
Reference Output(VREF)
Reference Voltage (±1.5%) 1.226 1.245 1.264 V
(±2.5%) 1.213 1.276 V
Reference Voltage Line 5V < V
IN
A
< 12V 2 mV
Regulation
Reference Voltage Load 0 < I
REF
< 100µA1mV
Regulation
Enable/UVLO
Enable Input Threshold 0.6 0.9 1.2 V
UVLO Threshold (Turn-on threshold) 1.4 1.5 1.6 V
UVLO Hysteresis 140 mV
Enable Input Current V
EN/UVLO
= 5V 0.2 5 µA
Absolute Maximum Ratings (Note 1)
Supply Voltage (V
IN
A, V
IN
P) ......................................... 15V
Digital Supply Voltage (V
DD
) ........................................... 7V
Comp Pin Voltage (V
COMP
) ............................ –0.3V to +3V
Feedback Pin Voltage (V
FB
) .......................... –0.3V to +3V
Enable Pin Voltage (V
EN/UVLO
) ..................... –0.3V to 15V
Current Sense Voltage (V
CSH–
V
CSL
) ............... –0.3V to 1V
Sync Pin Voltage (V
SYNC
) ................................ –0.3V to 7V
Freq/2 Pin Voltage (V
FREQ/2
) ............................ -0.3V to 7V
Power Dissipation (P
D
)
16 lead SOIC ................................. 400mW @ T
A
= 85°C
16 lead QSOP ............................... 245mW @ T
A
= 80°C
Ambient Storage Temp ............................ –65°C to +150°C
ESD Rating, ............................................................. Note 3
Operating Ratings (Note 2)
Supply Voltage (V
IN
A, V
IN
P) ........................ +2.9V to +14V
Ambient Operating Temperature......... –40°C ≤ T
A
≤ +85°C
Junction Temperature ....................... –40°C ≤ T
J
≤ +125°C
Output Voltage Range...................................... 1.3V to 12V
PackageThermal Resistance
θ
JA
16-lead SOP ............................................... 100°C/W
θ
JA
16-lead QSOP ............................................. 163°C/W
April 2005 5 M9999-042205
MIC2184 Micrel, Inc.
Parameter Condiion Min Typ Max Units
Soft Start
Soft Start Current 5 µA
Current Limit
Current Limit Threshold Voltage Voltage on CSH-CSL to trip current limit 100 mV
Error Amplifier
Error Amplifier Gain 20 V/V
Current Amplifier
Current Amplifier Gain 3.0 V/V
Oscillator Section
Oscillator Frequency (f
O
) 360 400 440 kHz
Maximum Duty Cycle V
FB
= 1.0V 100 %
Minimum On Time V
FB
= 1.5V 185 ns
Freq/2 Frequency (f
O
)V
FREQ/2
= 5V 170 200 230 kHz
Frequency Foldback Threshold Measured on FB 0.3 V
Frequency Foldback Frequency 90 kHz
SYNC Threshold Level 0.6 1.4 2.2 V
SYNC Input Current 0.1 5 µA
SYNC Minimum Pulse Width 200 ns
SYNC Capture Range Note 5
f
O
+15 %
600 kHz
FreqOut Output
FreqOut Frequency Note 6 f
O
/ 2 kHz
FreqOut Current Drive Sink 8mA
Source –6 mA
Gate Drivers
Rise/Fall Time C
L
= 3300pF 50 ns
Output Driver Impedance Source; V
IN
P = 12V 1.8 4 Ω
Sink; V
IN
P = 12V 1.6 3.5 Ω
Source; V
IN
P = 5V 2.6 Ω
Sink; V
IN
P = 5V 2.4 Ω
Note 1: 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
temperature, T
J
(Max), the junction-to-ambient thermal resistance, θ
JA
, and the ambient temperature, T
A
.
Note 2. The device is not guaranteed to function outside its operating rating.
Note 3. Devices are ESD sensitive. Handling precautions recommended.
Note 4: See application information for I(V
IN
P) vs. V
IN
P.
Note 5: See application information for limitations on maximum operating frequency.
Note 6: The frequency on FreqOut is half the frequency of the oscillator, or half the frequency of the external Sync signal.
MIC2184 Micrel, Inc.
M9999-042205 6 April 2005
Typical Characteristics
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
051015
QUIESCENT CURRENT (mA)
INPUT VOLTAGE (V)
Quiescent Current
vs. Input Voltage
I
STANDBY
200kHz
400kHz
I
Q
= I
VINA
+ I
VINP
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
-40 -20 0 20 40 60 80 100120140
QUIESCENT CURRENT (mA)
TEMPERATURE (°C)
Quiescent Current
vs. Temperature
I
STANDBY
200kHz
400kHz
I
Q
= I
VINA
+ I
VINP
V
IN
A = V
IN
P = 3.3V
2.80
2.85
2.90
2.95
3.00
3.05
3.10
051015
V
DD
(V)
INPUT VOLTAGE (V)
V
DD
vs. Input Voltage
V
IN
A = V
IN
P
2.970
2.975
2.980
2.985
2.990
2.995
3.000
3.005
00.20.40.60.811.2
V
DD
(V)
V
DD
LOAD CURRENT (mA)
V
DD
vs. Load
V
IN
A = V
IN
P = 5V
2.92
2.94
2.96
2.98
3.00
3.02
3.04
3.06
3.08
-40 -20 0 20 40 60 80 100120140
VDD (V)
TEMPERATURE (°C)
V
DD
vs. Temperature
V
IN
= 5V
1.2441
1.2443
1.2445
1.2447
1.2449
1.2451
024681012 14
REFERENCE VOLTAGE (V)
INPUT VOLTAGE (V)
Error Amp Reference Voltage
vs. In
p
ut Volta
g
e
1.24
1.241
1.242
1.243
1.244
1.245
1.246
-40 -20 0 20 40 60 80 100120140
REFERENCE VOLTAGE (V)
TEMPERATURE (°C)
Error Amp Reference Voltage
vs. Tem
p
erature
V
IN
= 3.3V
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
02468101214
FREQUENCY VARIATION (%)
INPUT VOLTAGE (V)
Frequency Variation
vs. In
p
ut Volta
g
e
200kHz
400kHz
-15
-13
-11
-9
-7
-5
-3
-1
1
3
5
-50 -30 -10 10 30 50 70 90 110
SOFT START CURRENT (µA)
TEMPERATURE (°C)
Frequency Variation vs.
Tem
p
erature
200kHz
400kHz
4.4
4.5
4.6
4.7
4.8
4.9
-40 -20 0 20 40 60 80 100120140
CURRENT (µA)
TEMPERATURE (°C)
Soft Start Current vs.
Tem
p
erature
90.0
92.0
94.0
96.0
98.0
100.0
102.0
02468101214
THRESHOLD (mV)
INPUT VOLTAGE (V)
Overcurrent Threshold
vs. In
p
ut Volta
g
e
95
96
97
98
99
100
101
102
-40 -20 0 20 40 60 80 100120140
THRESHOLD (mV)
TEMPERATURE (°C)
Overcurrent Threshold
vs. Tem
p
erature
V
IN
= 3.3V
P1-P3P4-P6P7-P9P10-P12

MIC2184YM-TR

Mfr. #:
Buy MIC2184YM-TR
Manufacturer:
Microchip Technology / Micrel
Description:
Switching Controllers Low Vin Buck PWM Control
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet