L99LD02

Active
Design Win

Dual-phase boost DC/DC controller

Download datasheet
Overview
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Get Started
Partner products
Sales Briefcase

Product overview

Description

The L99LD02 is a two-phase, constant frequency, current mode boost controller able to drive N-channel power MOSFETs.

Multi-phase operation is supported by SYNC I/O pin, providing the phase shifted clock signal. The boost controllers of more devices can be stacked, in order to operate in multi-phase for high power applications. Multi-phase operation reduces system filtering capacitance and inductance requirements.

The operating frequency is configurable via SPI between 100kHz and 470kHz. Other features include an internal 10V LDO for the gate drivers, soft-start, device supply option from boost output and pre-configurable operation in Limp Home.

  • All features

    • AEC-Q100 qualified
    • General
      • 32-bit ST SPI communication v 4.1
      • Stand-alone operation supported
      • QFN32L 5x5 with exposed pad
      • Timeout watchdog and Limp Home function
    • Boost section
      • Wide input range: 3V to 28V operation
      • Device supply option from boost output
      • Adjustable boost output voltage - up to 80V
      • 10V Gate Driver supply for Standard-Level MOSFETs
      • Internal 10V LDO regulator
      • Fixed frequency architecture -programmable by SPI
      • Dither oscillator parameters as frequency modulation and deviation percentage - programmable by SPI
      • Peak current mode control with programmable Input Current Limitation
      • Constant voltage regulation
      • Adjustable Slope Compensation
      • Soft start
      • Multi-phase operation - up to 4-phase supported
      • SYNC I/O pin for multi-phase operation support
      • Adjustable clock distribution and phase shift
      • Programmable error amplifier gain
      • Fully configurable in Limp Home
    • Protection and diagnostic
      • Boost functionality guaranteed in Cold Cranking
      • Input overcurrent protection - programmable by SPI
      • Thermal warning
      • Thermal shutdown
      • Overvoltage protection (OVP)

EDA Symbols, Footprints and 3D Models

STMicroelectronics - L99LD02

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L99LD02Q505
NRND
QFN-32L WF Automotive Ecopack2
L99LD02Q505TR
Active
QFN-32L WF Automotive Ecopack2

L99LD02Q505

Package:

QFN-32L WF

Material Declaration**:

Marketing Status

NRND

Package

QFN-32L WF

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L99LD02Q505TR

Package:

QFN-32L WF

Material Declaration**:

PDF XML

Marketing Status

Active

Package

QFN-32L WF

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Swipe or click the button to explore more details Don't show this again
Part Number
Order from distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L99LD02Q505 Available at distributors

Distributor availability of L99LD02Q505

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
NRND
EAR99 NEC Tray QFN-32L WF 150 -40 THAILAND
L99LD02Q505TR Available at distributors

Distributor availability of L99LD02Q505TR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel QFN-32L WF 150 -40 THAILAND

L99LD02Q505 NRND

Package:
QFN-32L WF
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L99LD02Q505

ECCN (EU):

NEC

Packing Type:

Tray

Operating Temperature (°C)

Min:

150

Max:

-40

Country of Origin:

THAILAND

L99LD02Q505TR Active

Package:
QFN-32L WF
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L99LD02Q505TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

150

Max:

-40

Country of Origin:

THAILAND

Swipe or click the button to explore more details Don't show this again

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors