MIC2285AYMT TR Micrel Inc, MIC2285AYMT TR Datasheet - Page 3

• Manufacturer Part Number: MIC2285AYMT TR
• Description: High Efficient Single 500mA Buck Switcher In Small 2x2 Thin MLFr
• Manufacturer: Micrel Inc
• Type: Step-Down (Buck)r

Specifications of MIC2285AYMT TR

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: Adj to 1V
• Current - Output: 500mA
• Frequency - Switching: 8MHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-TMLF®
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-2123-2; 576-2123-2; 576-2973-2

Absolute Maximum Ratings
Supply Voltage (V
Output Switch Voltage (V
Output Switch Current (I
Logic Input Voltage (V
Storage Temperature (T
ESD Rating
Electrical Characteristics
V
Parameter
Supply Voltage Range
Under-Voltage Lockout
Threshold
UVLO Hysteresis
Quiescent Current, PWM
mode
Quiescent Current, LDO
mode
Shutdown Current
[Adjustable] Feedback
Voltage
FB pin input current
Current Limit in PWM Mode
Output Voltage Line
Regulation
Output Voltage Load
Regulation, PWM Mode
Output Voltage Load
Regulation, LDO Mode
Maximum Duty Cycle
PWM Switch ON-
Resistance
Oscillator Frequency
LOWQ threshold voltage
LOWQ Input Current
Enable Threshold
Enable Input Current
LDO Dropout Voltage
January 2006
IN
= V
EN
= V
(3)
LOWQ
....................................................... 3kV
=3.6V; L = 0.47µH; C
IN
) ............................................ +6V
EN
SW
,V
s
)................ -60°C to +150°C
SW
LOWQ
) ................................... 2A
) ............................... +6V
Condition
(turn-on)
V
V
V
± 2% (over temperature)
V
V
V
20mA < I
100µA < I
V
V
I
I
I
SW
SW
OUT
FB
LOWQ
EN
FB
OUT
OUT
LOWQ
FB
) .............. -0.3V to V
= 50mA V
= -50mA V
= 0.9 * V
= 0.9 * V
≤ 0.4V
= 0V
= 50mA Note 5
> 2V; V
< 2V; V
= 0V
= 0V;I
(4)
OUT
LOAD
LOAD
(1)
= 10µF; T
OUT
NOM
NOM
IN
IN
< 300mA
< 50mA
= V
= 2.7V to 5.5V; I
FB
FB
= 0mA
(not switching)
= 0.7V
= 1.1V
OUT
A
+300mV to 5.5V; I
= 25°C, unless noted. Bold values indicate –40°C< T
FB_NOM
FB_NOM
IN
3
LOAD
(High Side Switch)
(Low Side Switch)
= 100mA
Operating Ratings
Supply Voltage (V
Logic Input Voltage (V
Junction Temperature (T
Junction Thermal Resistance
LOAD
3x3 MLF-10L (θ
= 100mA
IN
0.675
)............................+2.7V to +5.5V
2.45
0.98
Min
JA
100
2.7
7.2
0.5
0.5
)................................... 60°C/W
EN
,V
J
(2)
) .............. –40°C to +125°C
LOWQ
2.55
0.01
0.13
0.85
0.85
Typ
100
790
110
0.2
0.5
0.4
0.4
0.1
0.1
20
1
1
1
8
) .............. -0.3V to V
J
www.micrel.com
< +125°C
M9999-012406
Max
2.65
1.02
1.85
900
5.5
0.8
8.8
1.3
1.3
29
5
1
2
2
Units
MHz
mV
mV
µA
µA
µA
nA
µA
µA
%
%
%
%
Ω
V
V
V
A
V
V
IN