ISL70001SEH, ISL70001SRH

FN7956 Rev 3.03

Page 11 of 23

Feb 5, 2024

Soft-Start Source Current

SS = GND

20

23

27

µA

Soft-Start Discharge ON-Resistance

2.2

4.7

Ω

Soft-Start Discharge Time

256

Clock Cycles

POWER-GOOD SIGNAL

Rising Threshold

VFB as a % of VREF, Test mode

107

111

115

%

Rising Hysteresis

VFB as a % of VREF, Test mode

2

3.5

5

%

Falling Threshold

VFB as a % of VREF, Test mode

85

89

93

%

Falling Hysteresis

VFB as a % of VREF, Test mode

2

3.5

5

%

Power-Good Drive

VIN = 3V, PGOOD = 0.4V, EN = GND

7.3

8.2

mA

Power-Good Leakage

VIN = PGOOD = 5.5V

0.001

1

µA

PROTECTION FEATURES

Undervoltage Monitor

Undervoltage Trip Threshold

VIN = 3V, VFB as a % of VREF, Test mode

71

75

79

%

Undervoltage Recovery Threshold

VIN = 3V, VFB as a % of VREF, Test mode

84

88

92

%

Overcurrent Monitor

Overcurrent Trip Level

LX4 power block, Test mode, (Note 19)

1.3

1.9

2.5

A

Overcurrent or Short-Circuit Duty-Cycle

VIN = 3V, SS interval = 200µs, Test mode, fault

interval divided by hiccup interval

0.8

5

%

NOTES:

13. L = 1µH connected to Lx

14. 1kΩ PGOOD pull-up resistor is not populated.

15. Typical values shown are not guaranteed. Guaranteed min/max values are provided in the SMD.

16. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.

17. Limits do not include tolerance of external feedback resistors. The 0A to 6A output current range may be reduced by Minimum LXx On Time and

Minimum LXx Off Time specifications.

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

19. During an output short-circuit, peak current through the power block(s) can continue to build beyond the overcurrent trip level by up to 3A. With all

six power blocks connected, peak current through the power blocks and output inductor could reach (6 x 2.5A) + 3A = 18A. The output inductor must

support this peak current without saturating.

Electrical Specifications Unless otherwise noted, VIN = AVDD = DVDD = PVINx = EN = M/S = 3V or 5.5V;

GND = AGND = DGND = PGNDx = TDI = TDO = ZAP = 0V; FB = 0.65V; PORSEL = VIN for 4.5V ≤ VIN ≤ 5.5V and GND for VIN < 4.5V,

SYNC = LXx = Open Circuit; PGOOD is pulled up to VIN with a 1kΩ 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 15). Boldface limits apply across the operating temperature range, -55°C to +125°C; over a total

iodizing dose of 100krad(Si) with exposure at a high dose rate of 50 - 300krad(Si)/s; and over a total iodizing 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