MIC23156 Datasheet, PDF (5/22 Pages) Micrel Semiconductor – 1.5A, 3MHz Synchronous Buck Regulator with HyperLight Load® and I2C Control for Dynamic Voltage Scaling

Micrel, Inc.
MIC23156
Electrical Characteristics⁽⁴⁾ (Continued)
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.
Max.
Units
Switch On-Resistance
Current Limit (DC Value)
Frequency
ISW = +100mA, High-Side Switch PMOS (MLF)
0.17
ISW = +100mA, High-Side Switch PMOS (WLCSP)
0.15
Ω
ISW = −100mA, Low-Side Switch NMOS (MLF)
0.15
ISW = −100mA, Low-Side Switch NMOS (WLCSP)
0.13
VOUT = 1V
1.7
2.9
5.1
A
3
MHz
Maximum Duty Cycle
Frequency = 3MHz
80
%
DVS Step Size
10
mV
Soft-Start Time
VOUT = 90%, CSS = 120pF
I²C Interface (Assuming 550pF Total Bus Capacitance)
250
µs
I²C Address
Read (Binary, Hex)
Write (Binary, Hex)
10110111, 0xB7
10110110, 0xB6
LOW-Level Input Voltage
SCL, SDA
0.3 × VI2C V
HIGH-Level Input Voltage
SCL, SDA
0.7 × VI2C
V
SDA Pull-Down Resistance
Open drain pull-down on SDA during read back,
ISDA = 500µA
20
Ω
Power Good
PGOOD Output Low
PGOOD Output Leakage
PGOOD Threshold
% of VOUT < VNOM
PGOOD hysteresis
VOUT < 80% VNOM, IPGOOD = −500µA
VOUT = VNOM
VOUT ramping up
100
mV
5
µA
86
96
%
5
%
April 22, 2013
5
Revision 1.0