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ISL78213 Datasheet, PDF (5/15 Pages) Intersil Corporation – 3A Low Quiescent Current, High Efficiency Synchronous Buck Regulator | |||
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ISL78213
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: TA = -40°C to +105°C, VIN = 3.6V, EN = VDD. Typical values are at
TA = +25°C. Boldface limits apply over the operating temperature range, -40°C to
+105°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7) UNITS
Trans-Resistance
RT
0.213 0.25 0.287
Ω
LX
P-Channel MOSFET ON-Resistance
N-Channel MOSFET ON-Resistance
LX Maximum Duty Cycle
VIN = 5V, IO = 200mA
VIN = 2.8V, IO = 200mA
VIN = 5V, IO = 200mA
VIN = 2.8V, IO = 200mA
-
50
75
mΩ
-
70
100
mΩ
-
50
75
mΩ
-
70
100
mΩ
-
100
-
%
PWM Switching Frequency
LX Minimum On-Time
fS
SYNCH = High
0.80
-
1.00
-
1.20
140
MHz
ns
PG
Output Low Voltage
Sinking 1mA
-
-
0.3
V
Delay Time (Rising Edge)
0.65
1
1.35
ms
PG Pin Leakage Current
PG = VIN = 3.6V
-
0.01 2.0
µA
PGOOD Rising Threshold
Percentage of regulation voltage
89
92
95
%
PGOOD Falling Threshold
Percentage of regulation voltage
85
88 91.5
%
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
ISYNCH Pulled up to 5.5V
IEN
-
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.
5
FN7550.1
March 16, 2010
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