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ISL9305IRTAANLZEV1Z Datasheet(PDF) 6 Page - Intersil Corporation

Part # ISL9305IRTAANLZEV1Z
Description  3MHz Dual 1.5A Step-Down Converters and Dual Low-Input LDOs with I2C Compatible Interface
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL9305IRTAANLZEV1Z Datasheet(HTML) 6 Page - Intersil Corporation

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ISL9305H
6
FN7724.1
October 5, 2011
Line Regulation
VIN = VO + 0.5V to 5.5V (minimal 2.5V)
-
0.1
-
%/V
Maximum Output Current
1500
--
mA
P-Channel MOSFET ON-resistance
VIN = 3.6V, IO = 200mA
-
0.14
0.20
VIN = 2.3V, IO = 200mA
-
0.24
0.40
N-Channel MOSFET ON-resistance
VIN = 3.6V, IO = 200mA
-
0.11
0.20
VIN = 2.3V, IO = 200mA
0.18
0.34
P-Channel MOSFET Peak Current Limit
IPK
2.1
2.5
2.75
A
SW Maximum Duty Cycle
-
100
-
%
SW Leakage Current
VIN = 5.5V
-
0.005
1
µA
PWM Switching Frequency
fS
2.6
3.0
3.4
MHz
SW Minimum ON-time
VFB = 0.75V
-
70
-
ns
Bleeding Resistor
-
115
-
PG
Output Low Voltage
Sinking 1mA, FB1 = FB2 = 0.7V
-
-
0.25
V
Rising Delay Time
Based on 1ms programmed nominal delay time
0.6
1.1
1.8
ms
Falling Delay Time
Based on 1ms programmed nominal delay time
-
30
-
µs
PG Pin Leakage Current
PG = VINDCD1 = VINDCD2 = 3.6V
-
0.005
0.1
µA
PG Low Rising Threshold
Percentage of nominal regulation voltage
-
91
-
%
PG Low Falling Threshold
Percentage of nominal regulation voltage
-
87
-
%
PG High Rising Threshold
Percentage of nominal regulation voltage
-
112
-
%
PG High Falling Threshold
Percentage of nominal regulation voltage
-
109
-
%
LDO1 AND LDO2
VINLDO1, VINLDO2 Supply Voltage
No higher than VINDCD1
1.5
-
5.5
V
VINLDO1, VINLDO2 Undervoltage
Lockout Threshold
VUVLO
Rising
-
1.41
1.46
V
Falling
1.33
1.37
-
V
Internal Peak Current Limit
350
425
540
mA
Dropout Voltage
IO = 300mA, VO ≤ 2.1V
-
120
250
mV
IO = 300mA, 2.1V < VO ≤ 2.8V
-
100
200
mV
IO = 300mA, VO > 2.8V
-
80
170
mV
Power Supply Rejection Ratio
IO = 300mA @ 1kHz, VIN = 3.6V, VO = 2.6V, TA = +25°C
-
55
-
dB
Output Voltage Noise
VIN = 4.2V, IO = 10mA, TA = +25°C, BW = 10Hz to 100kHz
-
45
-
µVRMS
NOTE:
6. 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.
Electrical Specifications Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions
and the typical specifications are measured at the following conditions: TA = +25°C, VINDCD1 = 3.6V, VINDCD2 = 3.3V. For LDO1 and LDO2,
VINLDOx = VOLDOx + 0.5V to 5.5V with VINLDOx always no higher than VINDCD1, L1 = L2 = 1.5µH, C1 = 10µF, C4 = C5 = 10µF, C2 = C3 = C6 = C7 =
1µF, IOUT = 0A for DCD1, DCD2, LDO1 and LDO2 (see “TYPICAL APPLICATION DIAGRAM” on page 1 for more details). Boldface limits apply over the
operating temperature range, -40°C to +85°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 6)
TYP
MAX
(Note 6)
UNIT


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