MIC4720 Micrel Semiconductor, MIC4720 Datasheet - Page 4

• Manufacturer Part Number: MIC4720
• Description: 2A Integrated Switch Buck Regulator
• Manufacturer: Micrel Semiconductor

Absolute Maximum Ratings
Supply Voltage (V
Output Switch Voltage (V
Output Switch Current (
Logic Input Voltage (V
Storage Temperature (T
Electrical Characteristics
V
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Specification for packaged product only.
Micrel, Inc.
Parameter
Supply Voltage Range
Under-Voltage Lockout Threshold
UVLO Hysteresis
Quiescent Current
Shutdown Current
[Adjustable] Feedback Voltage
FB pin input current
Current Limit
Output Voltage Line Regulation
Output Voltage Load Regulation
Maximum Duty Cycle
Switch ON-Resistance
Oscillator Frequency
Enable Threshold
Enable Hysteresis
Enable Input Current
Power Good Range
Power Good Resistance
Over-Temperature Shutdown
Over-Temperature Hysteresis
May 2007
IN
= V
EN
= 3.6V; L = 1µH; C
IN
) .......................................................+6V
EN
SW
) .................................. –0.3V to V
s
) .........................–60°C to +150°C
SW
).............................................11A
). .........................................+6V
OUT
= 4.7µF; T
(3)
Condition
(turn-on)
V
V
± 2% (over temperature) I
V
V
V
20mA < I
V
I
I
SW
PGOOD
FB
EN
FB
OUT
OUT
FB
(1)
= 200mA V
= 0.9 × V
= 0.9 × V
≤ 0.4V
= 0V
> 2V; V
< 2V; V
= 500µA
A
LOAD
= 25°C, unless noted. Bold values indicate –40°C< T
IN
IN
NOM
NOM
< 2A
= V
= 2.7V to 5.5V; I
FB
(not switching)
OUT
= GND (High Side Switch)
+500mV to 5.5V; I
IN
LOAD
4
Operating Ratings
Supply voltage (V
Logic Input Voltage (V
Junction Temperature (T
Junction Thermal Resistance
= 100mA
LOAD
3mm×3mm MLF-12 (θ
3mm×3mm MLF-12 (θ
10 pin ePad MSOP (θ
10 pin ePad MSOP (θ
= 100mA
LOAD
= 100mA
IN
) ..................................... +2.7V to +5.5V
EN
) ....................................... 0V to V
J
(2)
) ........................ –40°C to +125°C
JA
JC
JA
JC
2.45
0.98
Min
100
2.7
3.5
1.8
0.5
)....................................76°C/W
)....................................28°C/W
) ...................................60°C/W
)...................................10°C/W
J
2.55
0.07
0.85
Typ
100
570
150
160
0.2
2.0
0.1
95
50
±7
25
< +125°C.
2
1
5
Max
2.65
1.02
900
200
300
±10
250
5.5
2.2
1.3
2.3
M9999-051707
10
MIC4720
Units
MHz
mV
mΩ
mV
µA
µA
µA
nA
°C
°C
%
%
%
%
Ω
V
V
V
A
V
IN