Sanyo LA5601 Specifications

Ordering number:ENN3222A

Monolithic Linear IC

LA5601

Low Saturation Regulator with Reset

Overview

The LA5601 is a voltage regulator with a low-voltage detector and reset controller for use in microprocessor-based systems. It generates a reset signal for low power supply voltage. It also features a low 0.25V (typ.) saturation voltage for reduced power dissipation and power supply size. Applications include microprocessor-controlled consumer electronic equipment such as CD players, tuners and receivers, and preamplifiers.

Functions

•Low saturation regulator with 250mA and 5.2V output.

•Power supply reset generator function.

•Supports on-off control of 5.2V using equipped enable pin (high active).

•Built-in Darlington driver (120mA).

•Built-in auxiliary regulator (5.2V, 250mA).

Package Dimensions

unit:mm

3098B-DIP10S

[LA5601]

10	6
	7.62	6.4
		0.25
1	5
	9.4
	3.0	3.9max
	0.51min	3.2
	0.48
	0.95
1.14	1.78	SANYO : DIP10S

Features

•Low minimum input-output voltage difference (0.3V typ).

•Supports setting of reset output delay time using external capacitor.

•Built-in fold-back current limiting circuit and excessive heat protection circuit.

•Reset output using active pull-up for simpler noise reduction and use with internal pull-down logic circuits.

•Error amplifier noise filter pin.

•Auxiliary regulator with reverse current protection.

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

40500TN (KT)/92595HA/D059TA, TS (US) No.3222–1/8

LA5601

Specifications

Absolute Maximum Ratings at Ta = 25˚C

Parameter			Symbol						Conditions	Ratings	Unit
Input voltage		VIN max								15	V
Enable pin voltage		VEN max								VIN max	V
Reset output pin voltage		V				max				15	V
			RES
Driver output voltage		VOD max								15	V
Driver input voltage		VID max								15	V
Allowable power dissipation		Pd max								1	W
Operating temperature			Topr							–30 to +80	˚C
Storage temperature			Tstg							–55 to +150	˚C
Operating Conditions at Ta = 25˚C
Parameter			Symbol						Conditions	Ratings	Unit
Input voltage					VIN					5.9 to 14	V
Output current			IOUT							0 to 250	mA
H-level reset output current			I							0 to 200	µA
				ORH
L-level reset output current			I							0 to 2	mA
					ORL
Auxiliary regulator output current					IOA					0 to 10	mA
Driver output voltage		VOD max								14	V
L-level driver output current		IODL max								120	mA
H-level driver input voltage			VIDH						IODL=120mA	3 to 14	V
L-level driver input voltage			VIDL						IODL≤100µA	–0.3 to +0.3	V

Operating Characteristics at Tj = 25˚C, VIN=6V, IOUT=200mA, See specified Test Circuit.

Parameter	Symbol						Conditions		Ratings		Unit
								min	typ	max
[Main regulator : Output ON-state, VEN='H' or open]
Output voltage	VO							5.0	5.2	5.4	V
Dropout voltage	VDROP			IOUT=250mA					0.25	0.5	V
Line regulation	VOLN1			5.5V≤VIN≤14V					30	80	mV
	VOLN2			6V≤VIN≤14V					20	40	mV
Load regulation	VOLD1			5mA≤IOUT≤250mA					40	100	mV
	VOLD2			5mA≤IOUT≤100mA					14	50	mV
Peak output current	IOP							250	500		mA
Output short current	IOSC								80	300	mA
Current drain	IQ1			IOUT=0					2.2	6	mA
	IQ2								10	30	mA
Output noise voltage	VNO			10Hz≤f≤100kHz					70		µVrms
Temperature coefficient of output voltage	VO/ Tj			Tj=25 to 80°C					–0.7		mV/˚C
Ripple rejection	Rrej			f=120Hz, 7V≤VIN≤13V					74		dB
Output ON-state control voltage	VENH			Main regulator, driver ON				2.6		VIN	V
[Main regulator : Output OFF-state, VEN='L']
L-level output voltage	VO OFF			VEN=0					50	200	mV
Quiescent current	IQ OFF			VEN=0					1.5	4	mA
Output OFF-state control voltage	VENL			Main regulator, driver OFF						1.0	V
[Reset circuit]
H-level reset output voltage	V	ORH		I	ORH		=200µA	4.97	5.17	5.37	V
L-level reset output voltage	V			I		=2mA, VIN=3.7V			90	200	mV
		ORL			ORL
Reset threshold voltage	VRT			IOUT=5mA				3.7	3.9	4.1	V
Reset hysteresis voltage	Vhys			IOUT=5mA				50	150	300	mV
Reset output delay time		td		Cd=0.1µF				7.5	10	12.5	ms
[Auxiliary regulator]
Output voltage	VOA			IOA=5mA				3.2	3.4	3.6	V
Line regulation	VOA LN			6V≤VIN≤14V, IOA=5mA					15	40	mV
Load regulation	VOA LD			2mA≤IOA≤10mA					130	200	mV
Output short current	IOASC							10	30		mA
Output pin leakage current	IOA LEAK			VIN=0, VOA=6V						2	µA
[Darlington driver]
L-level driver output voltage	VODL1			IODL=80mA, VID=3V					1.1	1.6	V
	VODL2			IODL=120mA, VID=3V					1.2	1.8	V
H-level driver input current	IIDH			IODL=120mA, VID=3V					0.4	1	mA
Output pin leakage current	IODH			VIH=14V, VOD=14V, VID=0.3V						50	µA

No.3222–2/8

LA5601

Pin Assignment

Equivalent Circuit Block Diagram

Specified Test Circuit

Sample Application Circuit 1

Note ) 1. Capacitors Cn and CRES are only required if problems are experienced with noise from external sources.

2.If capacitor Cn is present, ensure that Co is at least more than one-third of the value of Cin in order to prevent output noise at power-down due to capacitor discharge timing.

3.The minimum recommended value of output capacitor Co is 47 F.

4.Use low temperature coefficient capacitor for the delay time capacitor Cd.

No.3222–3/8