ISL70003ASEH Datasheet, PDF (12/36 Pages) Intersil Corporation – Radiation and SEE Tolerant 3V to 13.2V, 9A Buck Regulator

ISL70003ASEH
Electrical Specifications Unless otherwise noted, PVINx = AVDD = DVDD = 3V - 13.2V; GND = AGND = DGND = PGNDx = SGND = 0V;
POR_V_IN = 0.65V; SYNC = LXx = Open Circuit; PGOOD is pulled up to VREFD with a 3k resistor; REF is bypassed to GND with a 220nF capacitor; SS is
bypassed to GND with a 100nF capacitor; I_OUT = 0A; T_A = T_J = +25°C. (Note 4). Boldface limits apply across the operating temperature range, -55°C to
+125°C; over a total ionizing dose of 100krad(Si) with exposure at a high dose rate of 50 to 300rad(Si)/s; or over a total ionizing dose of 50krad(Si) with
exposure at a low dose rate of <10mrad(Si)/s. (Continued)
PARAMETER
TEST CONDITIONS
MIN
(Note 13) TYP
MAX
(Note 13)
UNIT
POWER-ON RESET
POR Pin Input Voltage
0.56
0.6
0.64
V
POR Sink Current
9.6
12
14.4
µA
ENABLE
Enable VIH Voltage
2
V
Enable VIL Voltage
0.8
V
Enable (EN) Leakage
EN = 4.5V
1.0
10
µA
SELECT PHASE
SEL 1, 2 VIH Voltage
2
V
SEL 1, 2 VIL Voltage
0.8
V
SEL 1, 2 Leakage Current
SEL1, 2 = VREFD
1.0
10
µA
PWM CONTROL LOGIC
Switching Frequency
FSEL = 1
255
300
345
kHz
FSEL = 0
425
500
575
kHz
Minimum On Time
SS = GND (Note 12)
250
320
ns
Minimum On Time
(Note 12)
160
220
ns
Minimum Off Time
(Note 12)
200
270
ns
Modulator Gain (V_IN /ΔV_OSC)
R_T = 22kΩ, C_T = 370pF, FSEL = 0
R_T = 36kΩ, C_T = 370pF, FSEL = 1
External Synchronization Frequency Range FSEL = 1, PV_INx = 3.0V
FSEL = 0, PV_INx = 3.0V
SYNC VIH Voltage
5
V/V
4.8
V/V
255
300
345
kHz
425
500
575
kHz
2
V
SYNC VIL Voltage
0.8
V
Synchronization Input Leakage Current SYNC = VREFD
1.0
4
µA
SOFT-START
Soft-start Source Current
SS = GND
20
23
27
µA
Soft-start Discharge ON-Resistance
3.0
6.0
Ω
Soft-start Discharge Time
(Note 12)
256
Clock Cycles
REFERENCE VOLTAGE
Reference Voltage Tolerance
LOAD REGULATION
VREF including Error Amplifier V_IO
0.594
0.6
0.606
V
Output Voltage Tolerance over Output
Current Range
PVIN = 3V - 13.2V, to 9A
(Notes 11, 12)
-0.45 -0.05
0.25
%
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FN8746.0
August 5, 2015