AAT3120ITP  -3-Channel Charge Pump For White LED Applications

General Description

The AAT3120 is a low noise, constant frequency

charge pump DC/DC converter that uses fractional

(1.5X) conversion to improve efficiency for white

LED applications. The device can be used to produce eight current levels up to 20mA per channel

for up to three channels. 1X load switch mode is

also built-in to improve efficiency at low current settings. Low external parts count (two 1µF flying

capacitors and two small 1µF capacitors at VIN and

OUT) makes the AAT3120 ideally suited for small

battery-powered applications.

AnalogicTech's S2

Cwire™ (Simple Serial Control™)

serial digital input is used to enable, disable, and

set current for each LED at eight different levels.

The AAT3120 has a thermal management system

to protect the device in the event of a short-circuit

condition at the output pin. Built-in soft-start circuitry prevents excessive inrush current during startup. A high charge pump switching frequency

enables the use of very small external capacitors.

A low current shutdown feature disconnects the

load from VIN and reduces quiescent current to less

than 1µA. The AAT3120 is available in the very

small Pb-free 12-pin TSOPJW package

Features

• VIN Range: 2.7V to 5.5V

• Fractional Charge Pump Mode

• Drives Low-VF

and High-VF

Type LEDs

• Up to Three LED Outputs

— Single Wire Programming

— Eight Regulated Current Settings

— Max 20mA per Channel

• Low Noise Constant Frequency Operation

• No Inductors

• 1MHz Switching Frequency

• Small Application Circuit

• Automatic Soft-Start

• IQ <1µA in Shutdown

• 12-Pin TSOPJW Package

MJD is a corporation which engaged in agency electronic components. MJD Through seventeen years unrimitting efforts,  aspire to provide our customers with world-leading products and service. Now already became a one of the most famous electronic components distributor in China.

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 PAYMENTS:

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 2. Western Union 

 3. Bank Wire (TT)

 4. MoneyGram

Shipping:

1. MJD needs about 3 BUSINESS DAY to handle the order after received payment. after receiving your payment. Otherwise, we will state it in the invoice in advance.

2. MJD can Ship via your shipping account (DHL / FEDEX / UPS / TNT or others) as your instruction. Or Ship via our shipping account (We have a very good relationship with DHL and FEDEX with very special freight).

3. Regarding the declared value on the package for customs clearance, we are pleased to follow

your wishes, just feel free to inform us when ordering.

4. Any import fees or charges are the buyer's responsibility.

REFUNDS & RETURN:

We offer a warranty on all items that we sold. Item will be tested before ship,it will be in good condition,if there are some problems with the item,feel free to contact us.Please Email us to notify a defective item. Unless otherwise specified, this item comes with 30 days warranty from the shipment date.

You must contact us before returning any product. All returns must be made within 30 days from this shipment date.Return must be in new condition(the SAME CONDITION as it was sent to you)

Because of wholesale price is different from sample price, our website can not state.Please send your required part number via email to Sales@hkmjd.com or add our skype id mjdccm898 for online talking.As well as welcome you call us : 0755-83957301  We will send offer for you;  Sometimes manufacturer's price is unstable, so we don't adjust price in time. if you feel price is a little high for you, just feel free to contact us for consultation. Thank you for your support ！