ISL70003ASEH

FN8746 Rev.4.01

Page 13 of 36

Dec 12, 2019

BUFFER AMPLIFIER

Gain-Bandwidth Product

CL = 1µF, ISOURCE = 1mA, AV = 1, VOUT = 1.25V

(Note 15)

200

kHz

Source Current Capability

20

mA

Sink Current Capability

250

400

µA

Offset Voltage

-4

0

4

mV

IMON CURRENT MONITOR

IMON Sense Time

145

225

300

ns

IMON Output Current Gain

ILOAD = 1A/power stage, LXx off time >300ns

100

µA/A

IMON Gain Accuracy

ILOAD = 1A/power stage, LXx off time >300ns

-14

14

µA

NOTES:

13. Typical values shown are not guaranteed.

14. The 0A to 9A output current range may be reduced by minimum LXx on-time and minimum LXx off-time specifications.

15. Limits established by characterization or analysis and are not production tested.

16. Parameters with MIN and/or MAX limits are 100% tested at -55°C, +25°C and +125°C, unless otherwise specified.

Electrical Specifications Unless otherwise noted, PVINx = AVDD = DVDD = 3V - 13.2V; GND = AGND = DGND = PGNDx = SGND = 0V;

POR_VIN = 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; IOUT = 0A; TA = TJ = +25°C. (Note 7). 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 16)TYP

MAX

(Note 16)UNIT

Typical Performance Curves Unless otherwise noted, the test platform is the ISL70003ASEHEV1Z where V

IN = 12V,

VOUT = 3.3V, IOUT = 3A, fSW = 500kHz, CIN = 4x 100µF + 5x1µF, LOUT = 3.3µH, COUT = 1x 150µF + 1µF, TCASE = +25°C, all outputs active.

FIGURE 6. EFFICIENCY vs LOAD, VIN = 12V, 300kHz

FIGURE 7. EFFICIENCY vs LOAD, VIN = 12V, 500kHz

50

60

70

80

90

100

01

23

45

67

89

LOAD CURRENT (A)

0.9VOUT

1.2VOUT

1.5VOUT

2.5VOUT

1.8VOUT

3.3VOUT

5VOUT

50

60

70

80

90

100

012

345

678

9

LOAD CURRENT (A)

3.3VOUT

5VOUT

2.5VOUT

1.8VOUT

1.5VOUT

1.2VOUT

0.9VOUT