RT9911PQV RICHTEK [Richtek Technology Corporation], RT9911PQV Datasheet

RT9911PQV

Manufacturer Part Number

RT9911PQV

Description

6 Channel DC/DC Converters

Manufacturer

RICHTEK [Richtek Technology Corporation]

Datasheet

1.RT9911PQV.pdf (32 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

RT9911PQV

Manufacturer:

NICHICON

Quantity:

40 000

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6 Channel DC/DC Converters

General Description

The RT9911 is a complete power-supply solution for digital

still cameras and other hand-held devices. It integrates

one selectable Boost/Buck DC-DC converter, one high-

efficiency step-down DC-DC converter, one high-efficiency

main step-up converter, one PWM converter for CCD

positive voltage, one inverter for CCD negative voltage and

one white LED driver

targeted for applications that use either two or three primary

cells or a single lithium-ion battery.

RT9911 is available in VQFN-40L 6x6. Each DC-DC converter

has independent shutdown input.

Ordering Information

Note :

Richtek Pb-free and Green products are :

Applications

DS9911-04 August 2007

RT9911

Digital Still Camera

PDA

Protable Device

RoHS compliant and compatible with the current require-

Suitable for use in SnPb or Pb-free soldering processes.

100% matte tin (Sn) plating.

ments of IPC/JEDEC J-STD-020.

Package Type

QV : VQFN-40L 6x6 (V-Type)

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

for LCD backlight. The

RT9911 is

Features

Pin Configurations

1.6V to 5.5V Battery Input Voltage Range

Synchronous Boost/Buck Selectable DC-DC

Converter

Syn-Buck DC-DC Converters

Main Boost DC-DC Converter

PWM Converter for CCD Positive Voltage

Inverter for CCD Negative Voltage

White LED Driver for LCD Panel Backlight

Up to 1.4MHz Adjustable Switching Frequency

1μ μ μ μ μ A Supply Current in Shutdown Mode

External Compensation Network for all Converters

Independent Enable Pin to Shutdown Each

Channel.

40-Lead VQFN Package

RoHS Compliant and 100% Lead (Pb)-Free

Internal Switches

Up to 95% Efficiency

0.8V to 5.5V Adjustable Output Voltage

Up to 95% Efficiency

100%

Internal Switches

Adjustable Output Voltage

Up to 97% Efficiency

COMP1

PGND1

VDDM

VREF

GND

OK2

(MAX)

FB1

LX1

Duty Cycle

VQFN-40L 6x6

(TOP VIEW)

GND

RT9911

www.richtek.com

LX2

PGND2

FB3

COMP3

CS3

DRN3

DRP3

VFB6

CFB6

COMP6

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