ISL91110IR
4
FN8709.0
April 17, 2015
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Absolute Maximum Ratings Thermal Information
PVIN, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
LX1, LX2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
FB (Adjustable Version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 2.7V
FB (Fixed V
OUT
Versions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
SGND, PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 0.3V
All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6.5V
ESD Rating
Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . . . 3kV
Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . 200V
Charge Device Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV
Latch-up (Tested per JESD-78B; Class 2, Level A) . . . . . . . . . . . . . . 100mA
Thermal Resistance (Typical)
JA
(°C/W)
JC
(°C/W)
20 Ld 4x4 TQFN Package (Notes 4
, 5). . . . 39 4
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493
Recommended Operating Conditions
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8V to 5.5V
Max Load Current (V
IN
= 3.4V, V
OUT
= 5V). . . . . . . . . . . . . . . . . . . . . . . 2ADC
Max Load Current (V
IN
= 2.5V, V
OUT
= 3.3V) . . . . . . . . . . . . . . . . . . . . . 2ADC
Max Load Current (V
IN
= 2.9V, V
OUT
= 3.3V, t
ON
= 600µs, t = 4.6ms) . . . . . 3A
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief TB379
5. For
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Analog Specifications V
IN
= V
PVIN
= V
EN
= 3.6V, V
OUT
= 3.3V, L1 = 1µH, C1 = 2x10µF, C2 = 2x22µF, T
A
= +25°C. Boldface limits apply
across the operating temperature range, -40°C to +85°C and input voltage range (1.8V to 5.5V) unless specified otherwise.
SYMBOL PARAMETER TEST CONDITIONS
MIN
(Note 6
)
TYP
(Note 7)
MAX
(Note 6)UNITS
POWER SUPPLY
V
IN
Input Voltage Range 1.8 5.5 V
V
UVLO
V
IN
Undervoltage Lockout Threshold Rising 1.725 1.775 V
Falling 1.550 1.650 V
I
VIN
V
IN
Supply Current PFM mode, no external load on V
OUT
(Note 8)3560 µA
I
SD
V
IN
Supply Current, Shutdown EN = SGND, V
IN
= 3.6V 0.05 1.0 µA
OUTPUT VOLTAGE REGULATION
V
OUT
Output Voltage Range ISL91110IRAZ, I
OUT
= 100mA, V
IN
= 3.6V 1.00 5.20 V
Output Voltage Accuracy V
IN
= 3.7V, V
OUT
= 3.3V, I
OUT
= 0mA, PWM mode -2 +2 %
V
IN
= 3.7V, V
OUT
= 3.3V, I
OUT
= 1mA, PFM mode -3 +4 %
V
FB
FB Pin Voltage Regulation For adjustable output version, V
IN
= 3.6V 0.783 0.80 0.813 V
I
FB
FB Pin Bias Current For adjustable output version 20 nA
V
OUT
/
V
IN
Line Regulation, PWM Mode I
OUT
= 500mA, V
OUT
= 3.3V, V
IN
step from 2.3V to
5.5V
±5 mV/V
V
OUT
/
I
OUT
Load Regulation, PWM Mode V
IN
= 3.7V, V
OUT
= 3.3V, I
OUT
step from 0mA to
1000mA
±0.005 mV/mA
V
OUT
/
V
I
Line Regulation, PFM Mode I
OUT
= 100mA, V
OUT
= 3.3V, V
IN
step from 2.3V to
5.5V
±12.5 mV/V
V
OUT
/
I
OUT
Load Regulation, PFM Mode V
IN
= 3.7V, V
OUT
= 3.3V, I
OUT
step from 0mA to
100mA
±0.4 mV/mA
V
CLAMP
Output Voltage Clamp Rising 5.25 5.95 V
Output Voltage Clamp Hysteresis 400 mV
DC/DC SWITCHING SPECIFICATIONS
f
SW
Oscillator Frequency 2.1 2.50 2.9 MHz
t
ONMIN
Minimum On Time 80 ns
I
PFETLEAK
LX1 Pin Leakage Current V
IN
= 3.6V -1 1 µA
I
NFETLEAK
LX2 Pin Leakage Current V
IN
= 3.6V -1 1 µA
