ER3105DI Datasheet, PDF (5/25 Pages) Altera Corporation – 500mA Wide VIN Synchronous Buck Regulator

Page 5
Absolute Maximum Ratings
VIN to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +42V
SW to GND . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VIN+0.3V (DC)
SW to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2V to 43V (20ns)
EN to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +42V
BOOT to SW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +5.5V
COMP, FSW, POK, SYNC, SS, AVINO to GND . . -0.3V to +5.9V
FB to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +2.95V
ESD Rating
Human Body Model (Tested per JESD22-A114). . . . . . . . . . . 3kV
Charged Device Model (Tested per JESD22-C101E) . . . . . 1.5kV
Machine Model (Tested per JESD22-A115) . . . . . . . . . . . . . 200V
Latch Up (Tested per JESD-78A; Class 2, Level A) . . . . . . . 100mA
Thermal Information
Thermal Resistance
_JA (°C/W) _JC (°C/W)
DFN Package (Notes 3, 4) . . . . . . .
44
5.5
Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . -65°C to +150°C
Ambient Temperature Range . . . . . . . . . . . . . . . . . . -40°C to +125°C
Operating Junction Temperature Range . . . . . . . . . -40°C to +125°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . —
Recommended Operating Conditions
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +125°C
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 36V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact
product reliability and result in failures not covered by warranty.
NOTES:
3. _JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features.
4. For _JC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications T_A = -40°C to +125°C, V_IN = 3V to 36V, unless otherwise noted. Typical values are at T_A = +25°C.
Boldface limits apply over the junction temperature range, -40°C to +125°C
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 7)
TYP
MAX
(Note 7) UNITS
SUPPLY VOLTAGE
V_IN Voltage Range
V_IN Quiescent Supply Current
V_IN
I_Q
V_FB = 0.7V, SYNC = 0V, F_SW =
AVINO
3
36
V
80
µA
V_IN Shutdown Supply Current
AVINO Voltage
POWER-ON RESET
I_SD
AVINO
EN = 0V, V_IN=36V (Note 5)
I_OUT = 0mA
V_IN = 6V; I_OUT = 10mA
1.8
2.5
µA
4.8
5.15
5.5
V
4.65
5
5.35
V
AVINO POR Threshold
Rising Edge
2.75
2.95
V
Falling Edge
2.4
2.6
V
OSCILLATOR
Nominal Switching Frequency
F_SW
F_SW = AVINO
440
Resistor from F_SW to GND = 340k
240
Resistor from F_SW to GND = 32.4k
Minimum Off-Time
t_OFF
V_IN = 3V
Minimum On-Time
t_ON
(Note 8)
F_SW Voltage
V_FSW
R_FSW = 100kΩ
0.39
Synchronization Frequency
SYNC
300
500
300
2000
150
90
0.4
560
kHz
360
kHz
kHz
ns
ns
0.41
V
2000
kHz
SYNC Pulse Width
100
ns
ERROR AMPLIFIER
Error Amplifier
Transconductance Gain
gm External Compensation
Internal Compensation
165
230
295
µA/V
50
µA/V
FB Leakage Current
Current Sense Amplifier Gain
FB Voltage
V_FB = 0.6V
R_T
T_A = -40°C to +85°C
T_A = -40°C to +125°C
0.54
0.589
0.589
1
0.6
0.599
0.599
100
nA
0.66
V/A
0.606
V
0.609
V
March 2014 Altera Corporation
09616
ER3105DI 500mA Wide VIN Synchronous Buck Regulator
March 14, 2014
Rev A