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L5991D on a board, in 3D

L5991D

STMicroelectronics

-40℃~+150℃@(Tj) 10V~20V 1MHz 1W 93% Boost、Flyback Isolation Under Voltage Protection、Over Current Protection、Soft Start SO-16 AC-DC Controllers and Regulators ROHS

Extended
DatasheetJLCPCBLCSCst/L5991D
Category
AC DC Controllers And Regulators
Package
SO-16
Pins
16

Overview

The L5991D is an AC DC Controllers And Regulator made by STMicroelectronics in a SO-16 package with 16 pins. -40℃~+150℃@(Tj) 10V~20V 1MHz 1W 93% Boost、Flyback Isolation Under Voltage Protection、Over Current Protection、Soft Start SO-16 AC-DC Controllers and Regulators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:E-L5991AD, from EasyEDA) and its footprint (Package_SO:SO-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 34 are in stock at JLCPCB (part C5267800).

Symbol

SYNC1RCT2DC3VREF4VFB5COMP6SS7VCC8VC9OUT10PGND11SGND12ISEN13DIS14DC-LIM15ST-BY16
EasyEDA_Cloud:E-L5991ADFrom EasyEDA

Footprint

12345678910111213141516
Package_SO:SO-16_3.9x9.9mm_P1.27mmFrom KiCad's library

Parameters

12
Duty Cycle(Max)
93%
Features
Over Current Protection
Feedback System
Secondary-Side Feedback
Frequency - Switching
1MHz
Isolation
Isolation
Operating Temperature
-40℃~+150℃
Output Current
1A
Output Voltage
5V
Pd - Power Dissipation
1W
Topology
Flyback
Voltage - Supply
10V~20V
Working Mode
PWM Modulation

Order codes

1

Pinout

16
The pins of the L5991D
PinNameType
1SYNCUnspecified
2RCTUnspecified
3DCUnspecified
4VREFUnspecified
5VFBUnspecified
6COMPUnspecified
7SSUnspecified
8VCCUnspecified
9VCUnspecified
10OUTUnspecified
11PGNDUnspecified
12SGNDUnspecified
13ISENUnspecified
14DISUnspecified
15DC-LIMUnspecified
16ST-BYUnspecified

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Questions

Is there a KiCad symbol and footprint for the L5991D?

Yes. The symbol is EasyEDA_Cloud:E-L5991AD and the footprint Package_SO:SO-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the L5991D?

SO-16, with 16 pins. Its footprint is drawn on this page.

Where is the L5991D datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the L5991D?

JLCPCB lists it as part C5267800, with 34 in stock; the sellers' links on this page open their listings.

What can replace the L5991D?

Parts like it in the library: the INN3074M-H606-TL by POWER INTEGRATIONS, the UC3845BN by onsemi, the UC3843BN(LX) by lingxingic and the UC3845BN(LX) by lingxingic. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8