Analog Devices LTC3315A

Overview

Topology	Buck Converter
Input voltage	2.5 V
Switching frequency	3000 kHz
Output 1	1.8 V / 2 A
Output 2	1.5 V / 2 A

Description

The LTC®3315A features dual 2A monolithic synchronousstep-down converters operating from a 2.25V to5.5V input supply in one package for space-constrainedapplications with demanding performance requirements.Using constant frequency, peak current mode control atswitching frequencies up to 3MHz with a minimum ontimeas low as 25ns, both bucks achieve high efficiencyand fast transient response in a very small applicationfootprint.

Features

Dual Outputs Each with 2A Output Current
High Efficiency: 19mΩ NMOS and 75mΩ PMOS
Wide Bandwidth, Fast Transient Response
Switching Frequency Synchronizable Up to 3MHz
VIN Range: 2.25V to 5.5V
VOUT Range: 0.5V to VIN
VOUT Accuracy: ±1%
Low Ripple Burst Mode® Operation
Peak Current Mode Control
Minimum On-Time: 25ns
Safely Tolerates Inductor Saturation in Overload
Shutdown Current: 1.2μA
Precision 400mV Enable Thresholds
Internal Soft-Start and Compensation
Power Good Output
Low Profile, Thermally Enhanced 12-Lead 2mm × 2mm × 0.74mm LQFN Package

Typical applications

Distributed DC Power Systems (POL)
Industrial/Automotive/Communications
FPGA, ASIC, μP Core Supplies
Servers, Telecom Supplies, Optical Networking

More information

Datasheet

Products

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	L (µH)	I_R (A)	I_SAT1 (A)	I_SAT2 (A)	R_{DC max.} (mΩ)	f_res (MHz)	Version	I_RP,40K (A)	I_SAT,30% (A)	R_{DC typ.} (mΩ)	V_OP (V)	Mount	Samples
	744383360047	SPEC		10 files EDA models: Components ZIP ALT WE-MAPI (rev24c).IntLib \| 599 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24b).zip \| 2.3 MB EAG Eagle_WE-MAPI (rev24b).lbr \| 193.1 KB KIC KiCad_WE-MAPI (rev24b).zip \| 745.1 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-30xx_3D (rev1).pdf \| 62.3 KB IGS WE-MAPI_3020 (rev1).igs \| 521.1 KB STP WE-MAPI_3020 (rev1).stp \| 287.6 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev24a).mod \| 41 KB Download all 10 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-MAPI SMT Power Inductor	0.47	4.8	–	–	22	99	SMT	7.55	9.8	18	80	SMT
	74479299147	SPEC PCN pending Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. SPEC Datasheet PCN PCN document		8 files EDA models: Components ZIP ALT Altium_WE-PMCI (rev22e).IntLib \| 86.5 KB ZUK Cadstar_WE-PMCI (rev19a).zip \| 14.8 KB CDS Cadence_WE-PMCI (rev22a).zip \| 524.6 KB EAG Eagle_WE-PMCI (rev23a).lbr \| 55.8 KB CAD files ZIP IGS Download_IGS_WE-PMCI-1210HS (rev1).igs \| 25.9 KB STP Download_STP_WE-PMCI-1210HS (rev1).stp \| 29 KB Electric models ZIP PSP PSpice_WE-PMCI (rev22a).zip \| 6.5 KB SCS Spectre_WE-PMCI (rev24a).mod \| 7.1 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-PMCI Power Molded Chip Inductor	0.47	11.05	5.15	9.95	22	90	High Saturation Current	11.05	–	18	–	SMT

	Order Code	Datasheet	Simulation
	744383360047	SPEC
	74479299147	SPEC PCN pending Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. SPEC Datasheet PCN PCN document

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	L (µH)	I_R (A)	I_SAT1 (A)	I_SAT2 (A)	R_{DC max.} (mΩ)	f_res (MHz)	Version	I_RP,40K (A)	I_SAT,30% (A)	R_{DC typ.} (mΩ)	V_OP (V)	Mount	Samples

IC manufacturers (99)

LTC3315A

Overview

Description

Features

Typical applications

More information

Products

EDA models: Components
ZIP

CAD files
ZIP

Electric models
ZIP

Download all 10 files as zip archive
ZIP

PCN pending

EDA models: Components
ZIP

CAD files
ZIP

Electric models
ZIP

Download all 8 files as zip archive
ZIP

PCN pending

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