LD2979M28 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Power/power management> The power supply circuit> LD2979M28

LD2979M28: DescriptionVERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT; CategoryPower/power management The power supply circuit; File Size263KB，15 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

Download Datasheet Parametric View All

LD2979M28 Overview

VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT

LD2979M28 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	STMicroelectronics
Parts packaging code	SOT-23
package instruction	SOT-23, 5 PIN
Contacts	5
Reach Compliance Code	_compli
ECCN code	EAR99
Is Samacsys	N
Adjustability	FIXED
Maximum drop-back voltage 1	0.6 V
Nominal dropback voltage 1	0.2 V
Maximum absolute input voltage	16 V
Maximum input voltage	16 V
Minimum input voltage	3.85 V
JESD-30 code	R-PDSO-G5
JESD-609 code	e0
length	2.9 mm
Maximum grid adjustment rate	0.0222%
Number of functions	1
Output times	1
Number of terminals	5
Working temperatureTJ-Max	125 °C
Operating temperatureTJ-Mi	-25 °C
Maximum output current 1	0.05 A
Maximum output voltage 1	2.964 V
Minimum output voltage 1	2.736 V
Nominal output voltage 1	2.85 V
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Encapsulate equivalent code	TSOP5/6,.11,37
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Regulator type	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height	1.45 mm
surface mount	YES
technology	BIPOLAR
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
Maximum voltage tolerance	4%
width	1.625 mm
Base Number Matches	1

Preview

Download Datasheet

View All

LD2979

Very low drop voltage regulators with inhibit

Datasheet

production data

Description

The LD2979 is a very low drop regulator available

in SOT23-5L.

The very low drop-voltage and the very low

quiescent current make them particularly suitable

for low noise, low power applications and in

battery powered systems.

SOT23-5L

Features

•

Very low dropout voltage (0.2 V typ. at 50 mA

load)

•

Very low quiescent current (typ. 500 µA at 50

mA load)

•

Output current up to 50 mA

•

Logic-controlled electronic shutdown

•

Output voltages of 3.0 and 3.3 V

•

Internal current and thermal limit

•

Supply voltage rejection: 63 dB (typ)

•

Only 1 µF for stability

•

Temperature range: -25 °C to 125 °C

•

Package available: SOT23-5L

Shutdown logic control function is available on

five pin version (TTL compatible). This means that

when the device is used as local regulator, it is

possible to put a part of the board in standby,

decreasing the total power consumption.

Table 1. Device summary

Order codes

LD2979M30TR

LD2979M33TR

Output voltages

3.0 V

3.3 V

November 2013

This is information on a product in full production.

DocID5721 Rev 15

1/15

www.st.com

Recommended Resources

A crystal controlled local oscillator circuit diagram

EMC knowledge - electromagnetic compatibility design of RS485 interface

Three-phase waveform generator circuit

One machine and multiple ground water pump control circuit

Computer motherboard circuit diagram 820 1_44

Computer motherboard circuit diagram 820 1_52

Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

Popular Components