Analog Devices LTC4126-10

Overview

Topology	Buck Converter
Input voltage	4.75-5.25 V
Switching frequency	50-75 kHz
Output 1	1.2 V / 0.01 A

Description

The LTC®4126-10 is a low-power wireless single-cell Li-Ion battery charger with an integrated step-down DC/ DC regulator. The step-down regulator is a low-noise multimode charge pump which is powered from the battery and provides a regulated 1.2V at the output. The switching frequency is set to either 50kHz or 75kHz depending on the mode to keep any switching noise out of the audible range.

Features

Wireless Li-Ion Battery Charger Plus High Efficiency Multi-Mode Charge Pump DC/DC
Wideband Rx Frequency: DC to >10MHz
Integrated Rectifier with Overvoltage Limit
Pin Selectable Charge Voltage: 4.1V or 4.2V
Charge Current: 10mA (Fixed)
Low Battery Disconnect: 3.0V
NTC Pin for Temperature Qualified Charging
DC/DC Regulated Output: 1.2V
DC/DC Output Current: Up to 60mA
50kHz/75kHz Switching, No Audible Noise
Pushbutton and/or Digital on/off Control for DC/DC
Thermally Enhanced 12-Lead 2mm × 2mm LQFN Package

Typical applications

Wireless Headsets
IoT Wearables
Hearing Aids
Low Power Li-Ion Powered Devices

More information

Datasheet

Products

Order Code	Datasheet	Downloads	Status	Product series	Compliance	Size	L (µH)	I_R (A)	R_{DC max.} (mΩ)	f_res (MHz)	Q	P (W)
760308103206	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-WPCC (rev24a).IntLib \| 9.3 MB ZUK Cadstar_WE-WPCC (rev20a).zip \| 27 KB CDS Cadence_WE-WPCC (rev19c).zip \| 49.4 MB EAG Eagle_WE-WPCC (rev24a).lbr \| 366 KB CAD files ZIP 3D 3d_760308103206 (rev1).pdf \| 3.2 MB IGS 760308103206 (rev1).igs \| 3.5 MB STP 760308103206 (rev1).stp \| 2.1 MB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-WPCC Wireless Power Transfer Receiver Coil	Qi - Airfuel Alliance	28,9 x 15,7 x 0,76 mm	7.5	1.55	380	23	16	20
760308101104	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-WPCC (rev24a).IntLib \| 9.3 MB ZUK Cadstar_WE-WPCC (rev20a).zip \| 27 KB CDS Cadence_WE-WPCC (rev19c).zip \| 49.4 MB EAG Eagle_WE-WPCC (rev24a).lbr \| 366 KB CAD files ZIP 3D 3d_760308101104 (rev1).pdf \| 66.6 KB IGS Download_IGS_760308101104 (rev1).IGS \| 1.9 MB STP DownloadSTP_760308101104 (rev1).STEP \| 1.5 MB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-WPCC Wireless Power Transfer Transmitter Coil	works with Qi Tx IC's	Ø 20 x 2.8 mm	6.8	2.5	130	20	42	50
760308101208	SPEC	7 files EDA models: Components ZIP ALT Altium_WE-WPCC (rev24a).IntLib \| 9.3 MB ZUK Cadstar_WE-WPCC (rev20a).zip \| 27 KB CDS Cadence_WE-WPCC (rev19c).zip \| 49.4 MB EAG Eagle_WE-WPCC (rev24a).lbr \| 366 KB CAD files ZIP 3D 3d_760308101208 (rev1).pdf \| 44.4 MB IGS Download_IGS_760308101208 (rev1).igs \| 1.2 MB STP Download_STP_760308101208 (rev1).stp \| 371 KB	Active i\| Production is active. Expected lifetime: >10 years.	WE-WPCC Wireless Power Transfer Receiver Coil	works with Qi Rx IC's	Ø 10 x 1.6 mm	13	0.8	500	26	17	15

	Order Code	Datasheet	Simulation
	760308103206	SPEC
	760308101104	SPEC
	760308101208	SPEC

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	Compliance	Size	L (µH)	I_R (A)	R_{DC max.} (mΩ)	f_res (MHz)	Q	P (W)	Samples

IC manufacturers (99)

10mA Wireless Li-Ion Charger with 1.2V Step-Down DC/DC Converter

Overview

Description

Features

Typical applications

More information

Products

EDA models: Components
ZIP

CAD files
ZIP

Download all 7 files as zip archive
ZIP

EDA models: Components
ZIP

CAD files
ZIP

Download all 7 files as zip archive
ZIP

EDA models: Components
ZIP

CAD files
ZIP

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