Datasheet > ISL9307IRTAANLEV1Z

ISL9307IRTAANLEV1Z

更新时间： 2024-11-06 00:42:19

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
13页	378K
描述
3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs

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3MHz Dual 1500mA Step-Down Converters and Dual

Low-Input LDOs

ISL9307

Features

The ISL9307 is an integrated mini Power Management IC

(mini-PMIC) ideal for applications for powering low-voltage

microprocessor or multiple voltage rails with a battery as an

input source, such as a single Li-ion or Li-polymer. ISL9307

integrates two high-efficiency, 3MHz, synchronous step-down

converters (DCD1 and DCD2) and two low-input, low-dropout

linear regulators (LDO1 and LDO2).

• Dual 1500mA, Synchronous Step-down Converters and Dual

300mA, General-purpose LDOs

• Input Voltage Range

- DCD1/DCD2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5V to 5.5V

- VINLDO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V to 5.5V

• Adjustable Output Voltage

- VODCD1/VODCD2 . . . . . . . . . . . . . . . . . . . . . . . . 0.8V to V

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 efficiency and maximize battery life.

• 50μA I (Typ) with DCD1/DCD2 in Skip Mode; 20μA I (Typ)

for each Enabled LDO

• EN Pins for DCD1/DCD2 and LDO1/LDO2

• Small, Thin, 4mmx4mm TQFN

The ISL9307 features EN pins for each channel, thus allowing

startup delay for power sequencing.

Applications

The ISL9307 also provides two 300mA low-dropout (LDO)

regulators. The input voltage range is 1.5V to 5.5V, which

allows them to be powered from one of the on-chip step-down

converters or directly from a battery. The default LDO power-up

output comes with factory pre-set fixed output voltage options

between 0.9V and 3.3V.

• Cellular Phones, Smart Phones

• PDAs, Portable Media Players, Portable Instruments

• Single Li-ion/Li-polymer Battery-Powered Equipment

• DSP Core Power

The ISL9307 is available in a 4mmx4mm 16 Ld TQFN.

L₁= 1.5µH

2.5V TO 5.5V

VINDCD1

SW1

FB1

1500mA

VINDCD2

C₁

R₁

C₄

10µF

R₂

ENDCD1

ENDCD2

L₂= 1.5µH

SW2

FB2

1500mA

ISL9307

C₅

10µF

R₃

ENLDO1

R₄

ENLDO2

1.5V TO 5.5V

VINLDO

C₂

VOLDO1

VOLDO2

300mA

1µF

C₆

1µF

C₇

1µF

GNDDCD1

GNDDCD2

GNDLDO

NOTE: ONLY FOR ADJUSTABLE OUTPUT VERSION. FOR FIXED

OUTPUT VERSION, DIRECTLY CONNECT THE FB PIN TO THE

OUTPUT OF THE BUCK CONVERTER.

FIGURE 1. TYPICAL APPLICATION DIAGRAM

September 20, 2012

FN7931.3

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

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与ISL9307IRTAANLEV1Z相关器件

型号	品牌	获取价格	描述	数据表
ISL9307IRTAANLZ-T	RENESAS	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAANLZ-T	INTERSIL	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAANLZ-T7A	INTERSIL	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAANLZ-T7A	RENESAS	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAANWEV1Z	RENESAS	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAANWEV1Z	INTERSIL	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAANWZ-T	RENESAS	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs; TQFN16; Temp Range: -40&
ISL9307IRTAANWZ-T	INTERSIL	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAANWZ-T7A	RENESAS	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs; TQFN16; Temp Range: -40&
ISL9307IRTAANWZ-T7A	INTERSIL	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs

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