ISL78214_15 Datasheet, PDF (5/15 Pages) Intersil Corporation – 4A Low Quiescent Current High Efficiency Synchronous Buck Regulator

ISL78214
Electrical Specifications Unless otherwise noted, all parameter limits are established over the recommended operating conditions and
the typical specification are measured at the following conditions unless otherwise noted: T_A = -40°C to +105°C, V_IN = 3.6V, EN = VDD. Typical values are
at T_A = +25°C. Boldface limits apply across the operating temperature range, -40°C to +105°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7)
UNIT
LX
P-Channel MOSFET ON-resistance
N-Channel MOSFET ON-resistance
LX Maximum Duty Cycle
V_IN = 5V, I_O = 200mA
V_IN = 2.8V, I_O = 200mA
V_IN = 5V, I_O = 200mA
V_IN = 2.8V, I_O = 200mA
-
50
75
mΩ
-
70
100
mΩ
-
50
75
mΩ
-
70
100
mΩ
-
100
-

PWM Switching Frequency
LX Minimum On-time
f_S
SYNCH = High
0.80
1.0
1.20
MHz
-
-
140
ns
PG
Output Low Voltage
Sinking 1mA
-
-
0.3
V
Delay Time (Rising Edge)
0.65
1
1.35
ms
PG Pin Leakage Current
PGOOD Rising Threshold
PG = V_IN = 3.6V
Percentage of regulation voltage
-
0.01
2
µA
89
92
95
%
PGOOD Falling Threshold
Percentage of regulation voltage
85
88
91
%
PGOOD Delay Time (Falling Edge)
-
15
-
µs
EN, SYNCH
Logic Input Low
-
-
0.4
V
Logic Input High
1.4
-
-
V
Synch Logic Input Leakage Current
Enable Logic Input Leakage Current
Thermal Shutdown
I_SYNCH
I_EN
Pulled up to 5.5V
-
0.1
4
µA
-
0.1
4
µA
-
140
-
°C
Thermal Shutdown Hysteresis
-
25
-
°C
NOTES:
6. Limits established by characterization and are not production tested.
7. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
Submit Document Feedback
5
FN7551.3
May 12, 2015