ADMOS AMS3102S-5.0, AMS3102S-4.0, AMS3102S-3.5, AMS3102S-3.3, AMS3102S-3.0 Datasheet

Advanced	AMS3102
Monolithic	300mA LOW DROPOUT VOLTAGE REGULATOR
Systems

FEATURES	APPLICATIONS
∙ Fixed and Adjustable Versions Available	∙ Cellular Telephones
∙ Output Current in excess of 300mA	∙ Portable Consumer Equipment
∙ Very Low Quiescent Current	∙ Portable (Notebook) Computers
∙ Reverse Battery Protection	∙ Battery Powered Systems
∙ Input-output Differential less than 0.6V	∙ Portable Instrumentation
∙ Short Circuit Protection	∙ Radio Control Systems
∙ Internal Thermal Overload Protection	∙ CD/DVD drives
∙ Load Dump Protection
∙ Overvoltage Protection
∙ Mirror Image Insertion Protection
∙ ON/OFF Pin
∙External PNP Drive

GENERAL DESCRIPTION

The AMS3102 series consists of positive fixed and adjustable voltage regulators ideally suited for use in battery-powered systems. These devices feature very low quiescent current of 0.3mA or less when supplying 10mA loads. This unique characteristic and the extremely low input-output differential required for proper regulation (0.25V for output currents of 100mA) make the AMS3102 ideal to use for standby power systems.

Internal circuitry of AMS3102 is protected from input fault conditions caused by reverse battery installation or input voltages that exceed maximum rated input voltage. During line transients, such as load dump (40V) when the input voltage to the regulator can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both internal circuits and the load. The AMS3102 series also includes internal current limiting, thermal shutdown, and is able to withstand temporary power-up with mirror-image insertion.

The AMS3102 is offered in the 3-pin TO-92 package, SOT-89, 3 lead SOT-23, 5 lead SOT-23 and 8 lead SOIC packages. The device is provided with On/Off pin in SOT-23 5L and in 8 lead SOIC package.

ORDERING INFORMATION

OUTPUT			PACKAGE TYPE				TEMP.
VOLTAGE							RANGE
	TO-92	SOT-89		3L SOT-23	5L SOT-23	SO-8
FIXED	AMS3102AN-X	AMS3102AL-X (R)		AMS3102AM-X	AMS3102AM1-X	AMS3102AS-X	IND
	AMS3102N-X	AMS3102L-X (R)		AMS3102M-X	AMS3102M1-X	AMS3102S-X	IND
ADJ.					AMS3102CM1	AMS3102CS	IND
X = 2.0V, 2.5V, 3.0V, 3.3V, 3.5V, 4.0V, 5.0V.
R = Reverse pin-out option

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]

AMS3102

ABSOLUTE MAXIMUM RATINGS (Note 1)

Input Voltage		Maximum Junction Temperature	+125°C
Operating	21V	Storage Temperature	-65°C to +150°C
Overvoltage Protection	24V to 40V	Lead Temperature (Soldering 10 sec)	230°C
Internal Power Dissipation (Note 4)	Internally Limited	ESD	2000V

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at VIN =VO +1V, IO =10mA, TJ=25°C, C2 = 22μF unless otherwise specified.

PARAMETER			CONDITIONS			AMS3102A-X					AMS3102-X				Units
					Min.		Typ.		Max.	Min.		Typ.		Max.
Fixed Output Voltage Versions
Output Voltage Tolerance					-1.0				+1.0	-3.0				+3.0	%
		(VIN+1V) ≤V ≤21V, IO=100 mA			- 3.0				+ 3.0			± 5.0			%
				IN
		-40°C ≤T ≤125°C
			J
Line Regulation		(VIN+1V) ≤V ≤ 15V					5		10			5		10	mV
				IN
		9V ≤V		≤ 21V			8		30			8		30	mV
			IN
Load Regulation		5mA ≤I		≤ 100 mA			30		50			30		50	mV
			O
		5mA ≤10 ≤ 200 mA					50		70			50		70	mV
Dropout Voltage		I	= 100 mA				0.25		0.3			0.3		0.4	mV
			O
		I	= 200 mA				0.5		0.6			0.5		0.6	mV
			O
Quiescent Current		I	≤ 10 mA,				0.3		0.5			0.3		0.5	mA
			O				3		4			3		4	mA
		I	= 100 mA
			O
		I ≤ 200 mA (Note 5)					9		12			9		12	mA
			O
Output Noise Voltage		10Hz-100kHz, COUT = 100μF					500					500			μV rms
Output Impedance		100mADC and 10mArms,100Hz=10kHz							200					200	mΩ
Ripple Rejection		fO =120Hz			55		80					80			dB
Maximum Operational Input					21		22			21		22			V
Voltage
Maximum Line Transient		RL = 500Ω, VO ≤ 5.5V			35		40			35		40			V
		T = 1ms, τ ≤100ms
Reverse Polarity Input Voltage,					-35		-40			-35		-40			V
D/C
Reverse Polarity Input Voltage,		RL = 500Ω, T = 1ms, τ ≤100ms			-35		-40			-35		-40			V
Transient

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]

AMS3102

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at VIN =6V, VOUT =3V IO =10mA, TJ=25°C, R1 =27k, C2 = 2μF unless otherwise specified.

PARAMETER		CONDITIONS		AMS3102C		Units
			Min.	Typ.	Max.
		(Note 2)
Adjustable Version
Reference Voltage			1.210	1.235	1.26	V
	IO £ 100 mA, -40°C £T £ 125°C, R1=27k,		1.20	1.235	1.270	V
		J
	Measured from VOUT to Adjust Pin
Output Voltage Range			2		20	V
Line Regulation	VOUT + 1V £V £ 21V			.02	1.5	mV/V
		IN
Load Regulation	5mA £I £ 100 mA			0.3	1	%
		O		1	2	%
	5mA £I £ 200 mA
		O
Dropout Voltage	I	£ 10 mA		0.05	0.2	V
		O		0.3	0.4	V
	I	= 100 mA
		O		0.5	0.6	V
	I = 200 mA (Note 5)
		O
Quiescent Current	I	= 10 mA		0.3	0.5	mA
		O
	I	= 100 mA		3	4	mA
		O		0.3	0.5	mA
	During Shutdown RL = 500W
Output Noise Voltage	10Hz-100kHz			100		mVrms/V
Output Impedance	100mADC and 10mArms,100Hz=10kHz			40	200	mW
Long Term Stability	T =1000hr			0.4		%/1000hr
Ripple Rejection	fO = 120Hz			0.02		dB
Maximum Operational Input			21	22		V
Voltage
Maximum Line Transient	IO = 10mA, Reference Voltage £ 1.5V		35	40		V
	T = 1ms, t £100ms
Reverse Polarity Input Voltage,	RL = 500W, VO ³ -0.3V		-35	-40		V
D/C
Reverse Polarity Input Voltage,	RL = 500W, T = 1ms, t £100ms		-35	-40		V
Transient
On/Off Threshold Voltage	VO = 3V
On				1.8	1.5	V
Off			2.5	2.0		V
On/Off Threshold Current	VOFF = 2.4V			35	60	mA

Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. For guaranteed performance limits and associated test conditions, see the Electrical Characteristics tables.

Note 2: To ensure constant junction temperature, low duty cycle pulse testing is used.

Note 3: Limits appearing in boldface type apply over the entire junction temperature range for operation. Limits appearing in normal type apply for TA = TJ = 25°C.

Note 4: The maximum allowable power dissipation is a function of the maximum junction temperature TJ(MAX), the junction-to ambient thermal resistance qJ-A and the ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is calculated using:

P(MAX) = TJ(MAX) - TA

θJ - A

Where the value of the junction-to-ambient thermal resistance are as follows: 195°C/W for the TO-92 (N) package, 110°C/W for SOT-89 (L), 220°C/W for 5 lead SOT-23 (M1) and 160°C/W for the molded plastic SO-8 (S).

Note 5: Dropout Voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential.

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]