Features 5 Low Noise LDO’s for up to 300 mA One high-efficiency Synchronous Magnetic Buck Regulator, IOUT 400 mA High efficiency PFM mode @low IOUT Auto Mode PFM/PWM switch Low inductance 2.2 µH @ 2 MHz clock Dynamic Voltage Scale control I 2C-compatible interface for the controlling of internal registers 20–bump 2.5 x 2.0 mm micro SMD package Description The LP8720 is a multi-function, programmable Power Management Unit, optimized for sub block power requirement solution. This device integrates one highly efficient 400 mA step-down DC/DC converter with Dynamic Voltage Scale (DVS), five low noise low dropout (LDO) voltage regulators and a 400 KHz I 2C-compatible interface to allow a host controller access to the internal control registers of the LP8720. The LP8720 additionally features programmable power-on sequencing. LDO regulators provide high PSRR and low noise ideally suited for supplying power to both analog and digital loads. The package will be the smallest 2.5 mm x 2.0 mm micro SMD 20–bump package. Key Specification Programmable Vout from 0.8V to 2.3V on DC/DC Automatic soft start on DC/DC 200 mV typ Dropout Voltage at 300 mA on LDO’s 2% (typ) Output Voltage accuracy on LDO’s Applications Cellular Handsets Portable hand-held products

Typical Application Diagram

Typical Application click for larger image Typical Application Diagram

Datasheets

Title		Size	Date	Other Language
	LP8720 One Step-Down DC/DC and Five Linear Regulators with I2C Compatible Interface	1195 Kbytes	30-Nov-09

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LP8720TLE/NOPB RoHS Status	MICRO SMD	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 580 MOUSER Worldwide 500	$1.50 each at 1K+ pcs	reel of 250
LP8720TLX/NOPB RoHS Status	MICRO SMD	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$1.50 each at 1K+ pcs	reel of 3000

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LP8720.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LP8720 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LP8720TLE/NOPB	6.018	MICRO SMD	20	1	260	Detail	Download	N/A	XYTT I 8720
LP8720TLX/NOPB	6.018	MICRO SMD	20	1	260	Detail	Download	N/A	XYTT I 8720

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LP8720.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LP8720 is located at RoHS Status.

CAD Symbols and Models Download LP8720 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LP8720TLE	CMOS7	0	21301	0	0	1584000	3	449464325
LP8720TLX	CMOS7	0	21301	0	0	1584000	3	449464325

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LP8720.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LP8720 is located at RoHS Status.