MIC23030 Datasheet, PDF (3/17 Pages) Micrel Semiconductor – 8MHz PWM 400mA Buck Regulator with HyperLight Load

Micrel Inc.
MIC23030
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) . ……………………………………….6V
Sense (V_SNS).. ..................................................................6V
Output Switch Voltage ..................................................6V
Enable Input Voltage (V_EN).. ..............................-0.3V to V_IN
Storage Temperature Range .. ……………-65°C to +150°C
ESD Rating⁽³⁾................................................. ESD Sensitive
Operating Ratings⁽²⁾
Supply Voltage (V_IN)... …………………………..2.7V to 5.5V
Enable Input Voltage (V_EN) .. ……………………….0V to V_IN
Output Voltage Range (V_SNS) ………………….0.7V to 3.6V
Junction Temperature Range (T_J)... ….-40°C ≤ T_J ≤ +125°C
Thermal Resistance
1.6mm x 1.6mm Thin MLF-6 (θ_JA) ..................92.4°C/W
Electrical Characteristics⁽⁴⁾
T_A = 25°C; V_IN = V_EN = 3.6V; L = 1.0µH; C_OUT = 4.7µF unless otherwise specified.
Bold values indicate –40°C ≤ T_J ≤ +125°C, unless noted.
Parameter
Condition
Min
Typ
Supply Voltage Range
Under-Voltage Lockout Threshold
(turn-on)
2.7
2.45
2.55
Quiescent Current
Shutdown Current
Output Voltage Accuracy
I_OUT = 0mA , SNS > 1.2 * V_OUT Nominal
V_EN = 0V; V_IN = 5.5V
V_IN = 3.6V; I_LOAD = 20mA
21
0.01
-2.5
Feedback Voltage
Adjustable Option Only
0.62
Current Limit
Output Voltage Line Regulation
Output Voltage Load Regulation
PWM Switch ON-Resistance
Maximum Frequency
SoftStart Time
Enable Threshold
Enable Input Current
SNS = 0.9*V_OUTNOM
V_IN = 3.0V to 5.5V, V_OUT = 1.2V, I_LOAD = 20mA,
20mA < I_LOAD < 400mA, V_OUT = 1.2V,
V_IN = 3.6V
I_SW = 100mA PMOS
I_SW = -100mA NMOS
I_OUT = 120mA
V_OUT = 90%
0.41
0.5
Over-temperature Shutdown
Over-temperature Shutdown Hysteresis
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
4. Specification for packaged product only.
0.7
0.3
0.7
0.65
0.8
8
100
0.9
0.1
160
20
Max Units
5.5
V
2.65
V
35
µA
4
µA
+2.5
%
V
1
A
%/V
%
Ω
MHz
µs
1.2
V
2
µA
°C
°C
August 2008
3
M9999-082608-B