MIC23153_11 Datasheet, PDF (3/18 Pages) Micrel Semiconductor – 4MHz PWM 2A Buck Regulator with HyperLight Load™ and Power Good

Micrel Inc.
MIC23153
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) .......................................... −0.3V to 6V
Sense Voltage (V_SNS) ........................................−0.3V to V_IN
Output Switch Voltage (V_SW) .............................−0.3V to V_IN
Enable Input Voltage (V_EN)................................−0.3V to V_IN
Power Good Voltage (V_PG)................................−0.3V to V_IN
Junction Temperature (T_J) ....................................... +150°C
Storage Temperature Range (T_S) .............−65°C to +150°C
Lead Temperature (soldering, 10s)............................ 260°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
Sense Voltage (V_SNS) ..................................... 0.62V to 3.6V
Junction Temperature Range (T_J).. ….−40°C ≤ T_J ≤ +125°C
Thermal Resistance
2.5mm x 2.5mm Thin MLF^®-10 (θ_JA)..................90°C/W
2.5mm x 2.5mm Thin MLF^®-10 (θ_JC) .................63°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.
Supply Voltage Range
2.7
Undervoltage Lockout Threshold (Turn-On)
2.45
Undervoltage Lockout Hysteresis
Quiescent Current
Shutdown Current
Output Voltage Accuracy
Feedback Regulation Voltage
Current Limit
Output Voltage Line Regulation
Output Voltage Load Regulation
PWM Switch ON-Resistance
Switching Frequency
Soft-Start Time
Soft-Start Current
Power Good Threshold (Rising)
I_OUT = 0mA , SNS > 1.2 * V_OUT Nominal
V_EN = 0V; V_IN = 5.5V
V_IN = 3.6V if V_OUTNOM < 2.5V, I_LOAD = 20mA
V_IN = 4.5V if V_OUTNOM ≥ 2.5V, I_LOAD = 20mA
I_LOAD = 20mA
SNS = 0.9*V_OUTNOM
V_IN = 3.6V to 5.5V if V_OUTNOM < 2.5V, I_LOAD = 20mA
V_IN = 4.5V to 5.5V if V_OUTNOM ≥ 2.5V, I_LOAD = 20mA
20mA < I_LOAD < 500mA, V_IN = 3.6V if V_OUTNOM < 2.5V
20mA < I_LOAD < 500mA, V_IN = 5.0V if V_OUTNOM ≥ 2.5V
20mA < I_LOAD < 1A, V_IN = 3.6V if V_OUTNOM < 2.5V
20mA < I_LOAD < 1A, V_IN = 5.0V if V_OUTNOM ≥ 2.5V
I_SW = 100mA PMOS
I_SW = −100mA NMOS
I_OUT = 120mA
V_OUT = 90%, C_SS = 470pF
V_SS = 0V
−2.5
0.6045
2.2
86
Power Good Threshold Hysteresis
Power Good Delay Time
Rising
Enable Threshold
Turn-On
0.5
Enable Input Current
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.
Typ.
2.55
75
22
0.01
0.62
3.3
0.3
0.3
0.7
0.2
0.19
4
320
2.7
92
7
68
0.9
0.1
160
20
Max.
5.5
2.65
45
5
+2.5
0.635
Units
V
V
mV
µA
µA
%
V
A
%/V
%
%
Ω
MHz
µs
µA
96
%
%
µs
1.2
V
2
µA
°C
°C
September 2011
3
M9999-092211-B