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PAM2321 (Not Recommended for New Design (NRND))

NRND = Not Recommended for New Design

3MHz, FAST TRANSIENT 2A STEP-DOWN CONVERTER

Datasheet

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Description

The PAM2321 is a 2A step-down converter with a typical input voltage of 3.3V and a fixed output voltage of 1.2V or an adjustable output. The 3MHz switching frequency enables the use of small external components. The ultra-small 3mmx3mm footprint and high efficiency make the PAM2321 an ideal choice for portable applications. The PAM2321 delivers 2A maximum output current while consuming only 55μA no-load quiescent current. Low RDS(ON) integrated MOSFETs and 100% duty cycle operation make the PAM2321 the ideal choice for high output voltage, high current applications which require a low dropout threshold. The PAM2321 provides excellent transient response and output accuracy across the operating range. The PAM2321 maintains high efficiency throughout the load range. The PAM2321 automatically optimizes efficiency during light load mode (PSM) and maintains constant frequency and low output ripple during PWM mode. Over-temperature and short circuit protection safeguard the PAM2321 and system components from damage. The PAM2321 are available in Pb-free, ultrasmall, low profile, TDFN3X3-10 packages. The product is rated over a temperature range of -40°C to +85°C.

Application(s)

Cellular Phone

Digital Cameras

Hard Disk Drives

MP3 Players

PDAs and Handheld Computers

Portable Media Players

USB Devices

Wireless Network Cards

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP)	Standard
Type	Buck
Minimum Input Voltage (V)	2.7
Maximum Input Voltage (V)	5.5
Output Current (A)	2
Minimum Output Voltage (V)	1
Maximum Output Voltage (V)	3.3
Quiescent Current Typ (µA)	55
Shutdown Current Typ (µA)	1
Frequency Typ (kHz)	3000
HS RDS(ON) (mΩ)	130
LS RDS(ON) (mΩ)	90

Technical Documents

Evaluation Boards and User Guides

PAM2321-EVB-User-Guide.pdf (1.3 MB)

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2512	2021-04-16	2021-07-16	Qualified Additional Assembly & Test (A/T) Site