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ISL9305 Datasheet(PDF) 2 Page - Intersil Corporation

Part # ISL9305
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

ISL9305 Datasheet(HTML) 2 Page - Intersil Corporation

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ISL9305
2
FN7605.1
August 15, 2011
Block Diagram
TABLE 1. TYPICAL APPLICATION PART LIST
PARTS
DESCRIPTION
MANUFACTURER
PART NUMBER
SPECIFICATIONS
SIZE
L1, L2
Inductor
Sumida
CDRH2D14NP-1R5
1.5µH/1.80A/50m
Ω
3.0mmx3.0mmx1.55mm
C1
Input capacitor
Murata
GRM21BR60J106KE19L
10µF/6.3V
0805
C2, C3
Input capacitor
Murata
GRM185R60J105KE26D
1µF/6.3V
0603
C4, C5
Output capacitor
Murata
GRM219R60J475KE01D
4.7µF/6.3V
0805
C6, C7
Output capacitor
Murata
GRM185R60J105KE26D
1µF/6.3V
0603
R1, R2,
R3, R4
Resistor
Various
1%, SMD, 0.1
Ω
0603
NOTE:
1. C4 and C5 are 10µF/6.3V for VODCD less than 1V.
LDO1
300mA
I2C
INTERFACE
DCD2
BUCK CONVERTER
UVLO
VREF
OSC
VINDCD1
FB1
SW1
GNDDCD1
VINDCD2
FB2
SW2
GNDDCD2
VINLDO1
VOLDO1
VINLDO2
VOLDO2
SDAT
SCLK
DCDPG
GNDLDO
10µF
10µF
1µF
10µF
4.7µF
4.7µF
10µF
1µF
1.5µH
1.5µH
DCD1
BUCK CONVERTER
OVERCURRENT
PROTECTION
ANALOG/LOGIC
CIRCUIT INPUT
THERMAL
SHUTDOWN
PGOOD WITH
1~200MS
DELAY TIME
LDO2
300mA
SHORT
CIRCUIT
PROTECTION


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