We use Cookies to give you best experience on our website. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. Please see our Privacy Policy for more information.

Findchips Blog
Power Circuits / Linear Regulator ICs / L4988D
Datasheets
L4988D by: STMicroelectronics

Automotive Low Drop Voltage Regulator

Part Details for L4988D by STMicroelectronics

Results Overview of L4988D by STMicroelectronics

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Industrial Automation Motor control systems

L4988D Information

L4988D by STMicroelectronics is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for L4988D

Part # Distributor Description Stock Price Buy
DISTI # L4988D-ND
DigiKey IC REG LINEAR 5V 200MA 8-SOIC Lead time: 52 Weeks Container: Tube Temporarily Out of Stock
Buy Now
DISTI # L4988D
Avnet Americas LDO Regulator Neg/Pos -0.3V to 6V 0.2A 8-Pin SO N Tube - Rail/Tube (Alt: L4988D) RoHS: Compliant Min Qty: 2000 Package Multiple: 2000 Lead time: 111 Weeks, 0 Days Container: Tube 0
RFQ
DISTI # 511-L4988D
Mouser Electronics LDO Voltage Regulators 5V 200mA LW DROP VLT REGULATOR RoHS: Compliant 0
Order Now
STMicroelectronics Automotive Low Drop Voltage Regulator RoHS: Compliant Min Qty: 1 0
  • 1 $1.7300
  • 10 $1.5600
  • 25 $1.4700
  • 100 $1.2500
  • 250 $1.1800
  • 500 $1.0300
$1.0300 / $1.7300 Buy Now
DISTI # L4988D
TME IC: voltage regulator, LDO,linear,fixed, 5V, 0.2A, SO8, SMD, tube Min Qty: 1 0
  • 1 $1.4600
  • 5 $1.3100
  • 25 $1.1600
  • 100 $1.0400
  • 1,000 $0.9700
$0.9700 / $1.4600 RFQ
DISTI # L4988D
Avnet Silica LDO Regulator NegPos 03V to 6V 02A 8Pin SO N Tube (Alt: L4988D) RoHS: Compliant Min Qty: 100 Package Multiple: 100 Lead time: 17 Weeks, 0 Days Silica - 0
Buy Now
DISTI # L4988D
EBV Elektronik LDO Regulator NegPos 03V to 6V 02A 8Pin SO N Tube (Alt: L4988D) RoHS: Compliant Min Qty: 100 Package Multiple: 100 Lead time: 53 Weeks, 0 Days EBV - 0
Buy Now

Part Details for L4988D

L4988D CAD Models

  • Part Symbol

    Part Symbol

  • Footprint

    footprint

  • 3D Model

    3D Model

Available Download Formats

Sign in to download CAD models Register or Sign In

By downloading CAD models, you agree to our Terms & Conditions and Privacy Policy

L4988D Part Data Attributes

Parametric Data
L4988D STMicroelectronics
Buy Now Datasheet
Compare Parts:
L4988D STMicroelectronics Automotive Low Drop Voltage Regulator
Select a part to compare:
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SOIC
Package Description SO-8
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 111 Weeks
Samacsys Manufacturer STMicroelectronics
Adjustability FIXED
Dropout Voltage1-Max 0.5 V
Dropout Voltage1-Nom 0.27 V
Input Voltage Absolute-Max 40 V
Input Voltage-Max 31 V
Input Voltage-Min 5.6 V
JESD-30 Code R-PDSO-G8
JESD-609 Code e4
Length 4.9 mm
Line Regulation-Max 0.025%
Load Regulation-Max 0.025%
Moisture Sensitivity Level 3
Number of Functions 1
Number of Outputs 1
Number of Terminals 8
Operating Temperature TJ-Max 150 °C
Operating Temperature TJ-Min -40 °C
Output Current1-Max 0.2 A
Output Voltage1-Max 5.1 V
Output Voltage1-Min 4.9 V
Output Voltage1-Nom 5 V
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP8,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Packing Method TUBE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Regulator Type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Seated Height-Max 1.75 mm
Surface Mount YES
Technology BICMOS
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Voltage Tolerance-Max 2%
Width 3.9 mm

Alternate Parts for L4988D

This table gives cross-reference parts and alternative options found for L4988D. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of L4988D, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
L4988DTR STMicroelectronics $0.9926 Automotive Low Drop Voltage Regulator L4988D vs L4988DTR

L4988D Related Parts

L4988D Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the L4988D is 60V, but it's recommended to keep it below 50V for reliable operation.

  • The output voltage of the L4988D can be calculated using the formula: Vout = (R2 / R1) * (Vref - Vfb), where R1 and R2 are the resistors connected to the FB pin, Vref is the internal reference voltage (2.5V), and Vfb is the feedback voltage.

  • The bootstrap capacitor (Cboot) is used to provide a high-voltage supply to the high-side driver of the L4988D, allowing it to drive the power MOSFETs. It's essential for proper operation and should be chosen according to the datasheet recommendations.

  • The inductor value depends on the input voltage, output voltage, and switching frequency. A good starting point is to use the formula: L = (Vin - Vout) / (ΔI * fsw), where ΔI is the inductor ripple current and fsw is the switching frequency. Then, iterate and optimize based on the specific design requirements.

  • The maximum switching frequency of the L4988D is 500 kHz, but it's recommended to operate at a lower frequency (e.g., 300-400 kHz) to ensure reliable operation and minimize losses.