MIC23156 Datasheet, PDF (4/22 Pages) Micrel Semiconductor – 1.5A, 3MHz Synchronous Buck Regulator with HyperLight Load® and I2C Control for Dynamic Voltage Scaling

Micrel, Inc.
MIC23156
Absolute Maximum Ratings⁽¹⁾
Input Supply Voltage (AVIN, PVIN, VI2C)....... −0.3V to +6V
Switch Voltage (SW) ..................................... −0.3V to AVIN
Logic Voltage (EN, PGOOD)......................... −0.3V to AVIN
Logic Voltage (VSEL, SCL, SDA) ..................−0.3V to VI2C
Analog Input Voltage (SNS, SS) ................... −0.3V to AVIN
Power Dissipation (T_A = +70°C) ................ Internally Limited
Storage Temperature (T_S)......................... −65°C to +150°C
Lead Temperature (soldering, 10s).......................... +260°C
ESD Rating⁽³⁾.................................................................. 2kV
Operating Ratings⁽²⁾
Input Supply Voltage (AVIN, PVIN, VI2C).... +2.7V to +5.5V
Switch Voltage (SW) .......................................... 0V to AVIN
Logic Voltage (EN, PGOOD) ............................. 0V to AVIN
Logic Voltage (VSEL, SCL, SDA) ....................... 0V to VI2C
Analog Input Voltage (SNS, SS) ........................ 0V to AVIN
Junction Temperature Range (T_J).......–40°C ≤ T_J ≤ +125°C
Thermal Resistance
1.81mm × 1.71mm WLCSP-16 (θ_JA) ...............150°C/W
2.8mm × 2.5mm MLF-17 (θ_JA) ........................... 89°C/W
Electrical Characteristics⁽⁴⁾
TA = 25°C, AVIN = PVIN = VEN = VVI2C = 3.6V; L = 1.0µH; COUT = 2.2µF, unless otherwise specified.
Bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted.
Parameter
Condition
Min.
Typ.
Supply Voltage Range
2.7
Enable Logic Pin Low Threshold
Logic Low
Enable Logic Pin High Threshold Logic High
1.2
VSEL Logic Pin Low Threshold
Logic Low
VSEL Logic Pin High Threshold
Logic High
0.7 × VI2C
Logic Pin Input Current
Pins: EN and VSEL
0.1
Undervoltage Lockout Threshold
Rising
2.45
2.55
Undervoltage Lockout Hysteresis Falling
75
Shutdown Temperature
160
Shutdown Temperature Hysteresis
20
Shutdown Current
VEN = 0V
0.1
DC-to-DC Converter
Output Voltage Accuracy
Quiescent Current
Output Voltage Range
VOUT = 1V, IOUT = 10mA
IOUT = 0mA, VFB > 1.2*VOUT
−1.5
30
0.7
Output Voltage Line Regulation
3.0V < VAVIN < 4.5, ILOAD = 10mA
0.02
Output Voltage Load Regulation
20mA < IOUT < 1A
0.04
Notes:
1. Exceeding the absolute maximum ratings may damage the device.
2. The device is not guaranteed to function outside its operating ratings.
3. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5k in series with 100pF.
4. Specification for packaged product only.
Max.
5.5
0.5
0.3 × VI2C
2
2.65
5
+1.5
50
2.4
Units
V
V
V
V
V
µA
V
mV
°C
°C
µA
%
µA
V
%/V
%
April 22, 2013
4
Revision 1.0