KF15B datasheet, PDF - EEWORLD Datasheet

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KF15B: Description8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2; Categorysemiconductor Power management; File Size535KB，21 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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KF15B Overview

8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2

KF15B Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	2
Maximum output current	0.5000 A
Maximum output voltage	8.32 V
Minimum output voltage	7.68 V
Maximum input voltage	20 V
Minimum input voltage	9 V
Processing package description	LEAD FREE, DPAK-3
state	ACTIVE
packaging shape	RECTANGULAR
Package Size	SMALL OUTLINE
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	2.25 mm
terminal coating	TIN
Terminal location	SINGLE
Packaging Materials	PLASTIC/EPOXY
Maximum voltage difference	0.7000 V
Adjustment type	FIXED POSITIVE LDO REGULATOR
Rated output voltage	8 V

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KFXX

Very low drop voltage regulators with inhibit

Datasheet

production data

Description

The KF series are very low drop regulators

available in SO-8 and DPAK packages and in a

wide range of output voltages.

The very low dropout voltage (0.4 V) and the very

low quiescent current make them particularly

suitable for low noise, low power applications and

especially in battery powered systems.

SO-8

DPAK

Features



Very low dropout voltage (0.4 V)



Very low quiescent current (typ. 50 µA in OFF

mode, 500 µA in ON mode)



Output current up to 500 mA



Logic-controlled electronic shutdown



Output voltages of 2.5; 3.3; 5; 8 V



Internal current and thermal limit



Only 2.2 µF for stability



Available in ± 2 % accuracy at 25 °C



Supply voltage rejection: 70 db (typ.)



Temperature range: - 40 to 125 °C

A shutdown logic control function is available (pin

5, TTL compatible). This means that when the

device is used as a local regulator, it is possible to

put a part of the board in standby, decreasing the

total power consumption. It requires only a 2.2 µF

capacitor for stability allowing space and cost

saving.

Table 1. Device summary

Order codes

Output voltages

SO-8 (tape and reel)

KF25BD-TR

KF33BD-TR

KF50BD-TR

DPAK (tape and reel)

KF25BDT-TR

KF33BDT-TR

KF50BDT-TR

KF80BDT-TR

2.5 V

3.3 V

February 2018

This is information on a product in full production.

DocID4337 Rev 14

1/21

www.st.com

KF15B Related Products

	KF15B	KFXXB	KF25B	KFXXB_08	KF80B	KF40BDT-TR	KF50B	KF40B	KF33B
Description	8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2	8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2	8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2	8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2	8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2	8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2	8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2	8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2	8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO2
Number of functions	1	1	1	1	1	1	1	1	1
Number of terminals	2	2	2	2	2	2	2	2	2
Maximum input voltage	20 V	20 V	20 V	20 V	20 V	20 V	20 V	20 V	20 V
Minimum input voltage	9 V	9 V	9 V	9 V	9 V	5 V	9 V	9 V	9 V
surface mount	Yes	Yes	Yes	Yes	Yes	YES	Yes	Yes	Yes
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal location	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE	SINGLE
Maximum output current	0.5000 A	0.5000 A	0.5000 A	0.5000 A	0.5000 A	-	0.5000 A	0.5000 A	0.5000 A
Maximum output voltage	8.32 V	8.32 V	8.32 V	8.32 V	8.32 V	-	8.32 V	8.32 V	8.32 V
Minimum output voltage	7.68 V	7.68 V	7.68 V	7.68 V	7.68 V	-	7.68 V	7.68 V	7.68 V
Processing package description	LEAD FREE, DPAK-3	LEAD FREE, DPAK-3	LEAD FREE, DPAK-3	LEAD FREE, DPAK-3	LEAD FREE, DPAK-3	-	LEAD FREE, DPAK-3	LEAD FREE, DPAK-3	LEAD FREE, DPAK-3
state	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	-	ACTIVE	ACTIVE	ACTIVE
packaging shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	-	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package Size	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	-	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
Terminal spacing	2.25 mm	2.25 mm	2.25 mm	2.25 mm	2.25 mm	-	2.25 mm	2.25 mm	2.25 mm
terminal coating	TIN	TIN	TIN	TIN	TIN	-	TIN	TIN	TIN
Packaging Materials	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
Maximum voltage difference	0.7000 V	0.7000 V	0.7000 V	0.7000 V	0.7000 V	-	0.7000 V	0.7000 V	0.7000 V
Adjustment type	FIXED POSITIVE LDO REGULATOR	FIXED POSITIVE LDO REGULATOR	FIXED POSITIVE LDO REGULATOR	FIXED POSITIVE LDO REGULATOR	FIXED POSITIVE LDO REGULATOR	-	FIXED POSITIVE LDO REGULATOR	FIXED POSITIVE LDO REGULATOR	FIXED POSITIVE LDO REGULATOR
Rated output voltage	8 V	8 V	8 V	8 V	8 V	-	8 V	8 V	8 V

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