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ISL9305H Functional Diagram
Integrated Circuits (ICs)

ISL9305IRTHWCLBZ-T

Obsolete
Renesas Electronics Corporation

3MHZ DUAL 1.5A STEP-DOWN CONVERTERS AND DUAL LOW-INPUT LDOS WITH I2C COMPATIBLE INTERFACE

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ISL9305H Functional Diagram
Integrated Circuits (ICs)

ISL9305IRTHWCLBZ-T

Obsolete
Renesas Electronics Corporation

3MHZ DUAL 1.5A STEP-DOWN CONVERTERS AND DUAL LOW-INPUT LDOS WITH I2C COMPATIBLE INTERFACE

Deep-Dive with AI

DocumentsDatasheet

Technical Specifications

Parameters and characteristics for this part

SpecificationISL9305IRTHWCLBZ-T
Frequency - Switching3 MHz
Mounting TypeSurface Mount
Number of Outputs4
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Package / Case16-WQFN Exposed Pad
Supplier Device Package16-TQFN (4x4)
TopologyStep-Down (Buck) (2), Linear (LDO) (2)
Voltage - Supply [Max]5.5 V
Voltage - Supply [Min]1.5 V
Voltage/Current - Output 1 [custom]1.5 A
Voltage/Current - Output 1 [custom]1.2 V
Voltage/Current - Output 21.8 V, 1.5 A
Voltage/Current - Output 3300 mA, 2.9 V
w/LED DriverFalse
w/SequencerFalse
w/SupervisorFalse

ISL9305H Series

3MHz Dual 1.5A Step-Down Converters and Dual Low-Input LDOs with I2C Compatible Interface

Partw/LED DriverVoltage/Current - Output 3Frequency - SwitchingMounting TypePackage / Casew/SequencerVoltage/Current - Output 2Number of OutputsTopologyVoltage/Current - Output 1 [custom]Voltage/Current - Output 1 [custom]Voltage - Supply [Max]Voltage - Supply [Min]Supplier Device PackageOperating Temperature [Max]Operating Temperature [Min]w/SupervisorVoltage/Current - Output 2 [Max]Voltage/Current - Output 2 [Min]Voltage/Current - Output 1Voltage/Current - Output 1 [Max]Voltage/Current - Output 1 [Min]
ISL9305 Functional Diagram
Renesas Electronics Corporation
3.3 V
350 mA
3 MHz
Surface Mount
16-WQFN Exposed Pad
1.8 V
800 mA
4
Linear (LDO) (2)
Step-Down (Buck) (2)
800 mA
1.5 V
5.5 V
1.5 V
16-TQFN (4x4)
85 °C
-40 °C
16-TQFN-EP
Renesas Electronics Corporation
3.3 V
300 mA
3 MHz
Surface Mount
16-WQFN Exposed Pad
1.5 A
2.9 V
4
Linear (LDO) (2)
Step-Down (Buck) (2)
1.5 A
1.2 V
5.5 V
1.5 V
16-TQFN (4x4)
85 °C
-40 °C
ISL9305 Functional Diagram
Renesas Electronics Corporation
3.3 V
350 mA
3 MHz
Surface Mount
16-WQFN Exposed Pad
2.5 V
800 mA
4
Linear (LDO) (2)
Step-Down (Buck) (2)
800 mA
1.5 V
5.5 V
1.5 V
16-TQFN (4x4)
85 °C
-40 °C
ISL9305H Functional Diagram
Renesas Electronics Corporation
2.9 V
300 mA
3 MHz
Surface Mount
16-WQFN Exposed Pad
1.5 A
1.8 V
4
Linear (LDO) (2)
Step-Down (Buck) (2)
1.5 A
1.2 V
5.5 V
1.5 V
16-TQFN (4x4)
85 °C
-40 °C
16-TQFN-EP
Renesas Electronics Corporation
3.3 V
300 mA
3 MHz
Surface Mount
16-WQFN Exposed Pad
1.5 A
1.8 V
4
Linear (LDO) (2)
Step-Down (Buck) (2)
1.5 A
1.2 V
5.5 V
1.5 V
16-TQFN (4x4)
85 °C
-40 °C
16-TQFN
Renesas Electronics Corporation
3.3 V
300 mA
3 MHz
Surface Mount
16-WQFN Exposed Pad
1.5 A
4
Linear (LDO) (2)
Step-Down (Buck) (2)
5.5 V
1.5 V
16-TQFN (4x4)
85 °C
-40 °C
5.5 V
0.8 V
1.5 A
5.5 V
0.8 V
ISL9305H Functional Diagram
Renesas Electronics Corporation
3.3 V
300 mA
3 MHz
Surface Mount
16-WQFN Exposed Pad
1.5 A
2.5 V
4
Linear (LDO) (2)
Step-Down (Buck) (2)
1.5 A
1.5 V
5.5 V
1.5 V
16-TQFN (4x4)
85 °C
-40 °C
ISL9305H Functional Diagram
Renesas Electronics Corporation
3.3 V
300 mA
3 MHz
Surface Mount
16-WQFN Exposed Pad
1.5 A
1.8 V
4
Linear (LDO) (2)
Step-Down (Buck) (2)
1.5 A
1.5 V
5.5 V
1.5 V
16-TQFN (4x4)
85 °C
-40 °C
16-TQFN-EP
Renesas Electronics Corporation
3.3 V
300 mA
3 MHz
Surface Mount
16-WQFN Exposed Pad
1.5 A
1.8 V
4
Linear (LDO) (2)
Step-Down (Buck) (2)
1.5 A
1.2 V
5.5 V
1.5 V
16-TQFN (4x4)
85 °C
-40 °C
ISL9305 Functional Diagram
Renesas Electronics Corporation
3.3 V
350 mA
3 MHz
Surface Mount
16-WQFN Exposed Pad
800 mA
4
Linear (LDO) (2)
Step-Down (Buck) (2)
5.5 V
1.5 V
16-TQFN (4x4)
85 °C
-40 °C
5.5 V
0.8 V
800 mA
5.5 V
0.8 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$

Description

General part information

ISL9305H Series

The ISL9305 is an integrated mini Power Management IC (mini-PMIC) ideal for applications of powering low-voltage microprocessor or multiple voltage rails with battery as input sources, such as a single Li-ion or Li-Polymer. ISL9305 integrates two high-efficiency 3MHz synchronous step-down converters (DCD1 and DCD2) and two low-input, low-dropout linear regulators (LDO1 and LDO2). The 3MHz PWM switching frequency allows the use of very small external inductors and capacitors. Both step-down converters can enter skip mode under light load conditions to further improve the efficiency and maximize the battery life. For noise sensitive applications, they can also be programmed through I2C interface to operate in forced PWM mode regardless of the load current condition. The I2C interface supports on-the-fly slew rate control of the output voltage from 0. 825V to 3. 6V at 25mV/step size for dynamic power saving. Each step-down converter can supply up to 800mA load current. The default output voltage can be set from 0. 8V to VINusing external feedback resistors on the adjustable version, or the ISL9305 can be ordered in factory pre-set voltage options from 0. 9V to 3. 6V in 50mV step. The ISL9305 also provides two 300mA low dropout (LDO) regulators. The input voltage range is 1. 5V to 5. 5V allowing them to be powered from one of the on-chip step-down converters or directly from the battery. The default LDO power-up output comes with factory pre-set fixed output voltage options between 0. 9V to 3. 3V. The ISL9305 is available in a 4mmx4mm 16 Ld TQFN package.

Documents

Technical documentation and resources