Sipex Corporation SPX5205M5, SPX5205M5-1.8, SPX5205M5-2.5, SPX5205M5-2.8, SPX5205M5-3.0 Datasheet

SPX5205SPX5205

150 mA, Low-Noise LDO Voltage Regulator

(Preliminary Information)

FEATURES		APPLICATIONS
• Low Noise Output LDO		•	PDA
• 1% Initial Accuracy At 150mA		•	Battery Powered Systems
•	Very Low Quiescent Current	•	Cellular Phone
• Low Dropout Voltage (210mV At 150mA)		•	Cordless Telephones
• Current & Thermal Limiting		•	Radio Control Systems
•	Reverse-Battery Protection	•	Portable/Palm Top/Notebook Computers
• Wide Range of Fix Output Voltages		•	Portable Consumer Equipment
	1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 4.5V, & 5.0V	•	Portable Instrumentation
•	Zero Off-Mode Current	•	Bar Code Scanners
•	Small 5-Pin SOT-23	•	SMPS Post-Regulator

•Pin Compatible to MIC5205/MAX8877 (Fixed Option Only)

PRODUCT DESCRIPTION

The SPX5205 is an excellent choice for use in battery-powered applications, and where power conservation is desired. Such as: cellular/ cordless telephones, radio control systems, and portable computers.

This device is a positive voltage regulator with very low dropout voltage and low output noise. It uses very little quiescent current of 750 A at 100 mA output load. VOUT tolerance is less than 1% with a compensated temperature coefficient. Many fixed output voltages, as listed below, or an adjustable version are available in a small 5-pin SOT-23 package.

Other key features include: Zero off-mode current, protection against reversed battery, thermal and current limiting.

MARKING INFORMATION

PIN CONNECTIONS

Voltage	Marking	Voltage	Marking
1.8	R1XX	4.0	R7XX
2.5	R2XX	4.5	R8XX
2.8	R3XX
3.0	R5XX	5.0	RBXX
3.3	R6XX	ADJ	RCXX

	Top View										Top View
VOUT						BYP				VOUT						ADJ/BYP
	5				4						5				4
	SPX5205										SPX5205
1			2		3					1			2		3

VIN GND EN	VIN GND EN
Fixed Output Voltage	Adjustable Output Voltage

Rev. 10/24/00

SPX5205

ABSOLUTE MAXIMUM RATINGS

Thermal Shutdown ....................................	Internally Limited
Lead Temp. (Soldering, 5 Seconds) ............................	260°C
Operating Junction Temperature Range .....	-40°C to +125°C
Input Supply Voltage........................................	-20V to +20V
Enable Input Voltage........................................	-20V to +20V

RECOMMENDED OPERATING CONDITIONS

Input Voltage.................................................	+2.5V to +16V
Operating Junction Temperature Range .....	-40°C to +125°C
Enable Input Voltage.............................................	0V to VIN
SOT-23-5 (θJA) .....................................................	See Note 1

ELECTRICAL CHARACTERISTICS

TJ = 25°C, VIN = VOUT + 1V, IL = 100µA, CL = 1µF, and VENABLE > 2.4V. Unless otherwise specified boldface applies over the junction temperature range

Parameter	Test Conditions	Typ	Min	Max	Units
Output Voltage Tolerance (VOUT)	IL = 100 µA		-1	+1	%VNOM
	IL = 500 µA		-2	+2
Output Voltage Temperature Coefficient		57			ppm/°C
Line Regulation	VIN = VOUT + 1V to 16V	0.03		0.1	%/V
	VIN = VOUT + 1V to 16V			0.2
Load Regulation	IL = 0.1mA to 150mA	0.1		0.2	%
	IL = 0.1mA to 150mA			0.5
Dropout Voltage (See Note 2)	IL = 100 µA	30		50
(VIN - VO)				70
	IL = 50 mA	140		190	mV
				230
	IL = 100 mA	180		250
				300
	IL = 150 mA	210		275
				350
Quiescent Current (IGND)	VENABLE < 0.6V	< 1		1	µA
	VENABLE < 0.25V			5
Ground Pin Current	IL = 100 µA	80		125
(IGND)				150
	IL = 50 mA	350		600
				800
	IL = 100 mA	750		1000
				1500	µA
	IL = 150 mA	1300		1900
				2500
Ripple Rejection (PSRR)		55			dB
Current Limit (ILIMIT)	VOUT = 0V	360		500	mA
Output Noise (eNO)	IL = 50mA, CL = 1µF	390			µVRMS
	10Hz – 100Khz.)
Input Voltage Level
Logic Low (VIL)	OFF			0.6	V
Input Voltage Level
Logic High (VIL)	ON		2.0
ENABLE Input Current	VIL < 0.6V	0.01		2	µA
	VIH > 2.0V	2		20

Note 1: The maximum allowable power dissipation is a function of maximum operating junction temperature, TJ (max), the junction to ambient thermal resistance, and the ambient, θJA, and the ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is given:

PD (max) = (TJ (max) - TA)/θJA, exceeding the maximum allowable power limit will result in excessive die temperature; thus, the regulator will go into thermal shutdown. The θJA of the SPX5205 is 220oC/W mounted on a PC board.

Note 2: Not apply to 1.8V version.

Rev. 10/24/00

SPX5205

TYPICAL APPLICATION

1	5	VOUT
VIN

	2		+					1.0uF
+	GND			SPX5205
	3		4				BYP
	EN
							(Optn)
		ENABLE may be tied directly to VIN

Rev. 10/24/00