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ISL9305IRTWCLBZ-T Datasheet(PDF) 6 Page - Intersil Corporation

Part # ISL9305IRTWCLBZ-T
Description  3MHz Dual Step-Down Converters and Dual Low-Input LDOs
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL9305IRTWCLBZ-T Datasheet(HTML) 6 Page - Intersil Corporation

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ISL9305
6
FN7605.1
August 15, 2011
Maximum Output Current
800
--
mA
P-Channel MOSFET ON-resistance
VIN = 3.6V, IO = 200mA
-
0.14
0.2
VIN = 2.3V, IO = 200mA
-
0.24
0.40
N-Channel MOSFET ON-resistance
VIN = 3.6V, IO = 200mA
-
0.11
0.2
VIN = 2.3V, IO = 200mA
-
0.18
0.34
P-Channel MOSFET Peak Current Limit
IPK
1.075
1.3
1.6
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 nonimal 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
Lock-out Threshold
VUVLO
VINDCD1 = 2.3V, Rising
-
1.41
1.46
V
VINDCD1 = 2.3V, Falling
1.33
1.37
-
V
Internal Peak Current Limit
350
425
540
mA
Dropout Voltage
IO = 300mA, VO ≤ 2.1V
-
125
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 = 4.7µF, C2 = C3 = C6 = C7 =
1µF, IOUT = 0A for DCD1, DCD2, LDO1 and LDO2 (see Figure 1 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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