Skyworks AAT2608A

Overview

Topology	Buck Converter
Input voltage	2.7-5.5 V
Output 1	3.7 V / 0.8 A

Description

The AAT2608A is a member of Skyworks' Total Power Management IC (TPMICTM) product family. It contains a fully integrated step-down converter and eight low dropout (LDO) regulators, making it ideal for general multiplerails applications. The step-down converter is a 800mA synchronous converter which operates at a switching frequency of 1.5MHz,minimizing the size of external components while keeping efficiency greater than 90%. The step-down converter is capable of 1A of peak current and has an integrated compensation network. The input voltage range is 2.7V to 5.5V, and the output can be externally adjusted from 0.6V to 80% of the step-down converter's input voltage. It includes an independent enable to provide a convenient solution to implement any power up or power downsequencing.The AAT2608A has eight high-PSRR LDOs which providesnoise immunity to the generated power rails. The LDOs have independent enable pins to meet any power-up or power-down sequencing requirements. Each LDO requires a small output ceramic capacitor for stability. 5 of the LDOs have a fixed output which is programmed duringmanufacturing; 3 LDOs have adjustable outputs programmablewith external resistors. LDOs 1, 2, 3 and 4 share the same input voltage as the step-down converter’s control circuitry. LDO5 shares its input withLDO6; LDO7 shares its input with LDO8. The AAT2608A is available in the small 28-pin 4mm x 4mm TQFN package.

Features

1.5MHz Step-Down Converter
800mA, Externally Adjustable
Synchronous with Integrated Switches
Independent Enable
Independent Input Power and Ground
Operating Input Voltage Range of 2.7V to 5.5V
LDO1, LDO2, LDO3 and LDO4 Regulators Share Same
Input as the Step-down Converter
LDO5 and LDO6 are Tied to the Same Input
LDO7 and LDO8 are Tied to the Same Input
LDO1, LDO7 and LDO8 have Adjustable Outputs with
External Resistors
LDO2, LDO3, LDO4, LDO5 and LDO6 have Factory
Programmed Outputs
All LDOs have:
Independent Enable
300mA Current Capability
High PSRR (68dB @10KHz)
Low Ground Current (30μA)
Over-Current Protection
Over-Temperature Protection
Operating Input Voltage Range from 2.7V to 5.5V
TQFN44-28 Package

Typical applications

Handheld Products
Cellular Application
Portable Navigation Devices (PNDs)
Media Players (MP4 Players)

More information

Products

Order Code	Datasheet	Simulation	Downloads	Status	Product series	L(µH)	I_R(A)	I_SAT(A)	f_res(MHz)	Mount
744042001	WE-TPC SMT Tiny Power Inductor, 1 µH, 2.7 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4818 (rev1).igs \| 1.3 MB STP WE-TPC_4818 (rev1).stp \| 458 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance1 µH	Rated Current2.7 A	Saturation Current2.6 A	Self Resonant Frequency177 MHz	MountSMT
7440430012	WE-TPC SMT Tiny Power Inductor, 1.2 µH, 3.1 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4828 (rev1).igs \| 1.5 MB STP WE-TPC_4828 (rev1).stp \| 577.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance1.2 µH	Rated Current3.1 A	Saturation Current2.8 A	Self Resonant Frequency150 MHz	MountSMT
7440420018	WE-TPC SMT Tiny Power Inductor, 1.8 µH, 2.35 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4818 (rev1).igs \| 1.3 MB STP WE-TPC_4818 (rev1).stp \| 458 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance1.8 µH	Rated Current2.35 A	Saturation Current2.4 A	Self Resonant Frequency100 MHz	MountSMT
7440430018	WE-TPC SMT Tiny Power Inductor, 1.8 µH, 2.7 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4828 (rev1).igs \| 1.5 MB STP WE-TPC_4828 (rev1).stp \| 577.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance1.8 µH	Rated Current2.7 A	Saturation Current2.45 A	Self Resonant Frequency120 MHz	MountSMT
7440430022	WE-TPC SMT Tiny Power Inductor, 2.2 µH, 2.5 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4828 (rev1).igs \| 1.5 MB STP WE-TPC_4828 (rev1).stp \| 577.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance2.2 µH	Rated Current2.5 A	Saturation Current2.35 A	Self Resonant Frequency100 MHz	MountSMT
7440420027	WE-TPC SMT Tiny Power Inductor, 2.7 µH, 2.03 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4818 (rev1).igs \| 1.3 MB STP WE-TPC_4818 (rev1).stp \| 458 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance2.7 µH	Rated Current2.03 A	Saturation Current2.2 A	Self Resonant Frequency90 MHz	MountSMT
7440430027	WE-TPC SMT Tiny Power Inductor, 2.7 µH, 2.35 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4828 (rev1).igs \| 1.5 MB STP WE-TPC_4828 (rev1).stp \| 577.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance2.7 µH	Rated Current2.35 A	Saturation Current1.95 A	Self Resonant Frequency80 MHz	MountSMT
744042003	WE-TPC SMT Tiny Power Inductor, 3.3 µH, 1.95 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4818 (rev1).igs \| 1.3 MB STP WE-TPC_4818 (rev1).stp \| 458 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance3.3 µH	Rated Current1.95 A	Saturation Current1.8 A	Self Resonant Frequency80 MHz	MountSMT
744043003	WE-TPC SMT Tiny Power Inductor, 3.3 µH, 2.15 A	Simulation	Downloads9 files EDA models: Components ZIP ALT WE-TPC (rev23a).IntLib \| 1.5 MB CDS Cadence_WE-TPC (rev23a).zip \| 10.8 MB EAG Eagle_WE-TPC (rev23b).lbr \| 219.3 KB KIC KiCad_WE-TPC (rev25b).zip \| 3.9 MB ZUK Download_CadStar_WE-TPC (rev19a).zip \| 47.5 KB CAD files ZIP IGS WE-TPC_4828 (rev1).igs \| 1.5 MB STP WE-TPC_4828 (rev1).stp \| 577.2 KB Electric models ZIP PSP PSpice_WE-TPC (rev23a).zip \| 39.9 KB SCS Spectre_WE-TPC (rev24a).mod \| 52.7 KB Download all 9 files as zip archive ZIP	Status Activei\| Production is active. Expected lifetime: >10 years.	Product seriesWE-TPC SMT Tiny Power Inductor	Inductance3.3 µH	Rated Current2.15 A	Saturation Current1.8 A	Self Resonant Frequency80 MHz	MountSMT

IC manufacturers (103)

Single 800mA Switching Converter and Eight-Channel 300mA LDO Regulator