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84049B, 8405, 84051B

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Info of 84049B
Info of 8405
Info of 84051B

84049B, 8405, 84051B Selling Leads, Datasheet

MFG:Keystone Electronics Category:Hardware, Fasteners, Accessories Package Cooled:NA/ D/C:09+

84049B, 8405, 84051B Datasheet download

Five Points

Part Number: 8405

Category: Hardware, Fasteners, Accessories

MFG: Keystone Electronics

Package Cooled: NA/

D/C: 09+

Description: STANDOFF HEX M/F 4-40 1.00" ALUM

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8405 Parameters

Technical/Catalog Information	8405
Vendor	Keystone Electronics
Category	Hardware, Fasteners, Accessories
Between Board Height	1.000" (25.4mm) 1"
Color	Natural
Length - Overall	1.188" (30.2mm) 1 3/16"
Material	Aluminum
Plating	Iridite
Size	0.250" (6.4mm) 1/4" Hex
Thread/Screw/Hole Size	4-40 Thread
Type	Hex Threaded, Male/Female
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	8405 8405 8405K ND 8405KND 8405K

8405 General Description

Designed specifically to meet the requirement for extended operation of battery-powered equipment such as cordless and cellular telephones, the A8405SLH voltage regulators offer the reduced dropout voltage and quiescent current essential for maximum battery life. Applicable also to palmtop computers and personal data assistants, these devices deliver a regulated output at up to 200 mA (transient), which is internally limited, providing short-circuit protection. Regulated output voltages of 2.7, 2.8, 3.0, 3.2, 3.3, 3.6, 3.8, 4.0, and 5.0 Vare currently provided. Other voltages, down to 2.0 volts, are available on special order.

A PMOS pass element provides a typical dropout voltage of only 100 mV at 100 mA of load current. The low dropout voltage permits deeper battery discharge before output regulation is lost. Quiescent current does not increase significantly as the dropout voltage is approached, an ideal feature in standby/resume power systems where data integrity is crucial. Regulator accuracy and excellent temperature characteristics are provided by a bandgap reference. The A8405SLH includes an ENABLE input to give the designer complete control over power up, standby, or power down.

These devices are supplied in a thermally enhanced 5-lead smalloutline plastic package similar to the SOT-23, and fitting the SC-74A footprint. All devices are rated for operation over a temperature rangeof -20 to +85.

8405 Maximum Ratings

Input Voltage, V_I . . . . . . . . . . . . . .7 V
Peak Output Current,
     I_OM . . . . . . . . . . . . . . . . . . 200 mA*
Enable Input Voltage, V_E . . . . . . . . V _I
Operating Temperature Range,
     T_A . . . . . . . . . . . . . -20to +85
Junction Temperature, T_J. . . +150
Storage Temperature Range,
     T_S . . . . . . . . . . . . -40to +150

* Output current rating is limited by input voltage, duty cycle, and ambient temperature. Under any set of conditions, do not exceed a junction temperature of +150. See following pages.

8405 Features

High Efficiency Provides Extended Battery Life
100 mV Typical Dropout Voltage at IO = 100 mA
80 A Typical Quiescent Current
Low Output Noise
200 mA Current-Limited Output
Improved PSRR and Transient Performance

8405 Typical Application

Cordless/Cellular/GSM/PHS Telephones
Personal Data Assistants
Personal Communicators
Palmtop Computers
GPS
Pagers

8405 Connection Diagram

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