Datasheet > ISL9307IRTAAJLEV1Z

ISL9307IRTAAJLEV1Z

更新时间： 2024-11-14 00:41:31

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
13页	678K
描述
3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs

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DATASHEET

ISL9307

FN7931

Rev 3.00

September 20, 2012

3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs

The ISL9307 is an integrated mini Power Management IC

Features

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

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

300mA, General-purpose LDOs

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).

• Input Voltage Range

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

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

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.

• Adjustable Output Voltage

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

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

for each Enabled LDO

The ISL9307 features EN pins for each channel, thus allowing

startup delay for power sequencing.

• EN Pins for DCD1/DCD2 and LDO1/LDO2

• Small, Thin, 4mmx4mm TQFN

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.

Applications

• 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

FN7931 Rev 3.00

Page 1 of 13

September 20, 2012

12 3 4 5 6 7...13

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与ISL9307IRTAAJLEV1Z相关器件

型号	品牌	获取价格	描述	数据表
ISL9307IRTAAJLZ-T	RENESAS	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAAJLZ-T	INTERSIL	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAAJLZ-T7A	RENESAS	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs; TQFN16; Temp Range: -40&
ISL9307IRTAAJLZ-T7A	INTERSIL	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAAJYEV1Z	RENESAS	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAAJYEV1Z	INTERSIL	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAAJYZ-T	RENESAS	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs; TQFN16; Temp Range: -40&
ISL9307IRTAAJYZ-T	INTERSIL	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs
ISL9307IRTAAJYZ-T7A	RENESAS	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs; TQFN16; Temp Range: -40&
ISL9307IRTAAJYZ-T7A	INTERSIL	获取价格	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs

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