MIC45116 Datasheet, PDF (5/42 Pages) Microchip Technology – 20V/6A DC/DC Power Module

MIC45116
TABLE 1-1: ELECTRICAL CHARACTERISTICS
Electrical Characteristics: V_IN = V_EN = 12V, V_OUT = 3.3V, V_BST – V_SW = 5V, T_J = +25ºC. Bold values indicate
–40°C ≤ T_J ≤ +125°C, unless otherwise noted. (Note 1).
Symbol
Parameters
Min. Typ. Max. Units
Conditions
Power Supply Input
V_IN, PV_IN Input Voltage Range
I_Q
Quiescent Supply Current
(MIC45116-1)
I_Q
Quiescent Supply Current
(MIC45116-2)
I_IN
Operating Current
4.75
—
20
V
—
0.35 0.75 mA
—
1.03
—
mA
—
29.4
—
mA
I_SHDN
Shutdown Supply Current
5V_DD Output
V_DD
5V_DD Output Voltage
—
5.3
10
µA
4.8
5.2
5.4
V
UVLO
UVLO_HYS
—
5V_DD UVLO Threshold
5V_DD UVLO Hysteresis
5V_DD Load Regulation
3.8
4.2
4.6
V
—
400
—
mV
0.6
2
3.6
%
Reference
V_FB
Feedback Reference Voltage
0.792 0.8 0.808 V
0.784 0.8 0.816
I_{FB_BIAS} FB Bias Current
—
5
500
nA
Enable Control
EN_HIGH
EN_LOW
EN_HYS
I_ENBIAS
EN Logic Level High
EN Logic Level Low
EN Hysteresis
EN Bias Current
1.8
—
—
V
—
—
0.6
V
—
200
—
mV
—
5
10
µA
Oscillator
f_SW
D_MAX
D_MIN
t_OFF(MIN)
Switching Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Minimum Off-Time
400 600 750 kHz
—
85
—
%
—
0
—
%
140 250 350
ns
Soft-Start
t_SS
Soft-Start Time
—
3.3
—
ms
Short-Circuit Protection
V_CL
Current-Limit Threshold
–30 –14
0
mV
V_SC
Short-Circuit Threshold
–23
–7
9
mV
I_CL
Current-Limit Source Current
60
80
100
µA
I_SC
Short-Circuit Source Current
25
35
45
µA
Note 1: Specification for packaged product only.
—
V_FB = 1.5V
V_FB = 1.5V
PV_IN = V_IN = 12V,
V_OUT = 1.8V, I_OUT = 0A
(MIC45116-2)
V_EN = 0V
V_IN = 7V to 20V,
I_5VDD = 10 mA
V_5VDD Rising
V_5VDD Falling
I_5VDD = 0 mA to 40 mA
T_J = 25°C
–40°C ≤ T_J ≤ +125°C
V_FB = 0.8V
—
—
—
V_EN = 12V
I_OUT = 2A
—
V_FB = 1V
—
FB from 0V to 0.8V
V_FB = 0.79V
V_FB = 0V
V_FB = 0.79V
V_FB = 0V
 2016 Microchip Technology Inc.
DS20005571A-page 5