Zetex ZSR700N8, ZSR800C, ZSR800G, ZSR800N8, ZSR850C Datasheet

ZSR

SERIES

2.85 TO 12 VOLT FIXED POSITIVE LOCAL VOLTAGE REGULATOR

DEVICE DESCRIPTION

The ZSR Series three terminal fixed positive voltage regulators feature internal circuit current limit and thermal shutdown making the devices difficult to destroy. The circuit design allows creation of any custom voltage in the range 2.85 to 12 volts. The devices are available in a small outline surface mount package, ideal for applications where space saving is important, as well as through hole TO92 style packaging. The devices are suited to local voltage regulation applications, where problems could be encountered with distributed single source regulation, as well as more general voltage regulation applications.

FEATURES

•Small outline SO8 and SOT223 package

•TO92 package

•2.85 to 12 Volt

•Output current up to 200mA

•Tight initial tolerance

•Low quiescent current

•-55 to 125°C temperature range

•No external components

•Internal thermal shutdown

•Internal short circuit current limit

The ZSR Series show performance characteristics superior to other local voltage regulators. The initial output voltage is maintained to within 2.5% with a quiescent current of typically 350 A. Output voltage change, with input voltage and load current, is much lower than competitive devices. The ZSR devices are completely stable with no external components.

VOLTAGE RANGE

ZSR285	2.85V
ZSR300	3.0V
ZSR330	3.3V
ZSR400	4.0V
ZSR485	4.85V
ZSR500	5.0V
ZSR520	5.2V
ZSR570	5.7V
ZSR600	6.0V
ZSR700	7.0V
ZSR800	8.0V
ZSR850	8.5V
ZSR900	9.0V
ZSR1000	10.0V
ZSR1200	12.0V

ISSUE 3 - SEPTEMBER 2001

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ZSR

SERIES

ABSOLUTE MAXIMUM RATING

Input voltage	20V	Power Dissipation (Tamb=25°C)
Output Current(Io)	200mA	SOT223	2W(Note 3)
Operating Temperature	-55 to 125°C	TO92	600mW
Storage Temperature	-65 to 150°C	S08	780mW(Note 3)

ELECTRICAL CHARACTERISTICS

Notes:

1.The maximum operating input voltage and output current of the device will be governed by the maximum power dissipation of the selected package. Maximum package power dissipation is specified at

25°C and must be linearly derated to zero at Tamb=125°C.

2.The following data represents pulse test conditions

with junction temperatures as indicated at the initiation of the test. Continuous operation of the devices with the stated conditions might exceed the power dissipation limits of the chosen package.

3. Maximum power dissipation, for the SOT223 and SO8 packages, is calculated assuming that the device is mounted on a PCB measuring 2 inches square.

4. The shut down feature of the device operates if its temperature exceeds its design limit as might occur during external faults, short circuits etc. If the regulator is supplied from an inductive source then a large voltage transient, on the regulator input, can result should the shut down circuit operate. It is advised that a capacitor (1 F or greater) should be applied across the regulator input to ensure that the maximum voltage rating of the device is not exceeded under shutdown conditions.

ZSR285 TEST CONDITIONS (Unless otherwise stated):Tj=25°C, IO=100mA, Vin=6.85V

SYMBOL	PARAMETER	CONDITIONS		MIN.	TYP.	MAX.	UNITS
VO	Output Voltage			2.78	2.85	2.92	V
		IO=1 to 200mA	τ	2.736		2.964	V
		Vin=4.85 to 20V	τ	2.736		2.964	V
		IO=1 to 100mA
∆VO	Line Regulation	Vin=4.85 to 20V			10	40	mV
∆VO	Load Regulation	I =1 to 200mA			5	25	mV
		IOO=1 to 100mA			2		mV
lq	Quiescent Current	τ			350	600	µA
∆lq	Quiescent Current	IO=1 to 200mA				100	µA
	Change	Vin=4.85 to 20V				100	µA
Vn	Output Noise Voltage	f=10Hz to 10kHz			75		µV rms
∆Vin /∆VO	Ripple Rejection	Vin=5.85 to 18V		48	62		dB
		f=120Hz
Vin	Input Voltage Required			4.85	4.55		V
	To Maintain Regulation
∆VO /∆T	Average Temperature	IO=5.0mA τ
	Coefficient of VO				0.1		mV/°C

=Tj=-55 to 125°C

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ZSR

SERIES

ZSR300 TEST CONDITIONS (Unless otherwise stated):Tj=25°C, IO=100mA, Vin=7V

SYMBOL	PARAMETER	CONDITIONS		MIN.	TYP.	MAX.	UNITS
VO	Output Voltage			2.92	3.0	3.08	V
		IO=1 to 200mA	τ	2.88		3.12	V
		Vin=5 to 20V	τ	2.88		3.12	V
		IO=1 to 100mA
∆VO	Line Regulation	Vin=5 to 20V			10	40	mV
∆VO	Load Regulation	I =1 to 200mA			5	25	mV
		IOO =1 to 100mA			2		mV
lq	Quiescent Current	τ			350	600	µA
∆lq	Quiescent Current Change	IO=1 to 200mA				100	µA
		Vin=5 to 20V				100	µA
Vn	Output Noise Voltage	f=10Hz to 10kHz			75		µV rms
∆Vin /∆VO	Ripple Rejection	Vin=6 to 18V		48	62		dB
		f=120Hz
Vin	Input Voltage Required To			5	4.7		V
	Maintain Regulation
∆VO /∆T	Average Temperature	IO=5.0mA τ
	Coefficient of VO				0.1		mV/°C

ZSR330 TEST CONDITIONS (Unless otherwise stated):Tj=25°C, IO=100mA, Vin=7.3V

SYMBOL	PARAMETER	CONDITIONS	MIN.	TYP.	MAX.	UNITS
VO	Output Voltage		3.218	3.3	3.382	V
		IO=1 to 200mA τ	3.168		3.432	V
		Vin=5.3 to 20V	3.168		3.432	V
		IO=1 to 100mA τ
∆VO	Line Regulation	Vin=5.3 to 20V		7.5	30	mV
∆VO	Load Regulation	I =1 to 200mA		5	25	mV
		IOO=1 to 100mA		2		mV
lq	Quiescent Current	τ		350	600	µA
∆lq	Quiescent Current Change	IO=1 to 200mA			100	µA
		Vin=5.3 to 20V			100	µA
Vn	Output Noise Voltage	f=10Hz to 10kHz		50		µV rms
∆Vin /∆VO	Ripple Rejection	Vin=6.3 to 18V	50	64		dB
		f=120Hz
Vin	Input Voltage Required To		5.3	5		V
	Maintain Regulation
∆VO /∆T	Average Temperature	IO=5.0mA τ
	Coefficient of VO			0.1		mV/°C

=Tj=-55 to 125°C

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ZSR

SERIES

ZSR400 TEST CONDITIONS (Unless otherwise stated):Tj=25°C, IO=100mA, Vin=8V

SYMBOL	PARAMETER	CONDITIONS		MIN.	TYP.	MAX.	UNITS
VO	Output Voltage			3.9	4.0	4.1	V
		IO=1 to 200mA	τ	3.84		4.16	V
		Vin=6 to 20V	τ	3.84		4.16	V
		IO=1 to 100mA
∆VO	Line Regulation	Vin=6 to 20V			10	40	mV
∆VO	Load Regulation	I =1 to 200mA			5	25	mV
		IOO=1 to 100mA			2		mV
lq	Quiescent Current	τ			350	600	µA
∆lq	Quiescent Current	IO=1 to 200mA				100	µA
	Change	Vin=6 to 20V				100	µA
Vn	Output Noise Voltage	f=10Hz to 10kHz			75		µV rms
∆Vin /∆VO	Ripple Rejection	Vin=7 to 18V		48	62		dB
		f=120Hz
Vin	Input Voltage Required			6	5.3		V
	To Maintain Regulation

ZSR485 TEST CONDITIONS (Unless otherwise stated): Tj=25°C, IO=100mA, Vin=8.85V

SYMBOL	PARAMETER	CONDITIONS		MIN.	TYP.	MAX.	UNITS
VO	Output Voltage			4.729	4.85	4.971	V
		IO=1 to 200mA	τ	4.656		5.044	V
		Vin=6.8 to 20V	τ	4.656		5.044	V
		IO=1 to 100mA
∆VO	Line Regulation	Vin=6.85 to 20V			10	40	mV
∆VO	Load Regulation	I =1 to 200mA			5	25	mV
		IOO=1 to 100mA			2		mV
lq	Quiescent Current	τ			350	600	µA
∆lq	Quiescent Current	IO=1 to 200mA				100	µA
	Change	Vin=6.85 to 20V				100	µA
Vn	Output Noise Voltage	f=10Hz to 10kHz			50		µV rms
∆Vin /∆VO	Ripple Rejection	Vin=7.85 to 18V		50	64		dB
		f=120Hz
Vin	Input Voltage Required			6.85	6.55		V
	To Maintain Regulation
∆VO /∆T	Average Temperature	IO=5.0mA τ			0.1		mV/°C
	Coefficient of VO

=Tj = -55 to 125°C

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ZSR

SERIES

ZSR1000 TEST CONDITIONS (Unless otherwise stated): Tj=25°C, IO=100mA, Vin=14V

SYMBOL	PARAMETER	CONDITIONS	MIN.	TYP.	MAX.	UNITS
VO	Output Voltage		9.75	10	10.25	V
		IO=1 to 200mA τ	9.6		10.4	V
		Vin=12 to 20V	9.6		10.4	V
		IO=1 to 100mA τ
∆VO	Line Regulation	Vin=12 to 20V		12	40	mV
∆VO	Load Regulation	I =1 to 200mA		9	30	mV
		IOO=1 to 100mA		3		mV
lq	Quiescent Current	τ		350	600	µA
∆lq	Quiescent Current Change	IO=1 to 200mA			100	µA
		Vin=12 to 20V			100	µA
Vn	Output Noise Voltage	f=10Hz to 10kHz		150		µV rms
∆Vin /∆VO	Ripple Rejection	Vin=13 to 18V	43	57		dB
		f=120Hz
Vin	Input Voltage Required To		12	11.7		V
	Maintain Regulation
∆VO /∆T	Average Temperature	IO=5.0mA τ		0.25
	Coefficient of VO					mV/°C

ZSR1200 TEST CONDITIONS (Unless otherwise stated): Tj=25°C, IO=100mA, Vin=16V

SYMBOL	PARAMETER	CONDITIONS	MIN.	TYP.	MAX.	UNITS
VO	Output Voltage		11.7	12	12.3	V
		IO=1 to 200mA τ	11.52		12.48	V
		Vin=14 to 20V	11.52		12.48	V
		IO=1 to 100mA τ
∆VO	Line Regulation	Vin=14 to 20V		12	40	mV
∆VO	Load Regulation	I =1 to 200mA		9	30	mV
		IOO=1 to 100mA		3		mV
lq	Quiescent Current	τ		350	600	µA
∆lq	Quiescent Current Change	IO=1 to 200mA			100	µA
		Vin=14 to 20V			100	µA
Vn	Output Noise Voltage	f=10Hz to 10kHz		150		µV rms
∆Vin /∆VO	Ripple Rejection	Vin=15 to 18V	43	57		dB
		f=120Hz
Vin	Input Voltage Required To		14	13.7		V
	Maintain Regulation
∆VO /∆T	Average Temperature	IO=5.0mA τ		0.25
	Coefficient of VO					mV/°C

τ =Tj = -55 to 125 °C

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	ZSR	ZSR285 ZSR300 ZSR400
	SERIES
		ZSR570 ZSR900

			TYPICAL CHARACTERISTICS
(Ohms)	10				(dB)	90
			Io = 100mA			80			Io = 100mA
			VIN = VOUT+ 4V						Vin = Vout + 3V
						70		DVin = 200mV p/p
ImpedanceOutput	1.0				RejectionRipple	60
						50
							ZSR285
			ZSR900			40	ZSR300
			ZSR570				ZSR400
	0.1		ZSR400			30	ZSR570
			ZSR300				ZSR900
			ZSR285
						20
						10
	0.01	1K	10K	100K		0	100	1K	10K	100K
	100					10

Frequency (Hz)	Ripple Frequency (Hz)
Output Impedance v Frequency	Ripple Rejection v Ripple Frequency

(V)				INPUT VOLTAGE				(V)			LOAD CURRENT
						(VO + 9)							100 mA
Deviation						(V + 4)		Deviation					0
						O
Voltage	+0.5							Voltage	+0.5
			OUTPUT VOLTAGE								OUTPUT VOLTAGE
				DEVIATION							DEVIATION
Output	0							Output	0
	-0.5								-0.5	dIo /dt = 1A/ s
		IO = 100mA								V IN = Vo+ 4V
		COUT	= 0							COUT= 0
	-1.0	dVIN /dt = 5V/ s							-1.0
					30							30
		0	10	20		40	50		0	10	20		40	50

Time		(us)	Time		(us)
Line Transient Response			Load Transient Response

	160	D=1					(˚C/W)	48	D=1
C/W)
	140	TO92 PACKAGE						40	SOT223 PACKAGE
ThermalResistance (˚	120						ThermalResistance
	20	D=0.05						32	D=0
	100	D=0.5							D=0.5
	80							24
	60							16	D=0.2
	40	D=0.2							D=0.1
									D=0.05
		D=0.1						8
	0	D=0						0
		1m	10m	100m	1	10			1m	10m	100m	1	10
	0

	Pulse Width (s)	Pulse Width(s)
	Thermal Resistance v Pulse Width	Thermal Resistance v Pulse Width
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