Sipex Corporation SPX2730T-3.3, SPX2730T-5.0, SPX2730U-3.3, SPX2730U-5.0, SPX2733T Datasheet

	SPX2730/31/32/33
3A High Current Low Dropout Voltage Regulator
	Adjustable & Fixed Output,
	Fast Response
	(ADVANCED INFORMATION)
FEATURES	APPLICATIONS
• Adjustable Output Down To 1.2V	• Powering VGA & Sound Card
• 1% output accuracy @ 3.3V, 5.0V	• Power PC Supplies
• Output Current of 3A	• SMPS Post-Regulator
• Low Dropout Voltage 370mV(Typ.) @ 3A.	• High Efficiency “Green” Computer Systems
• Extremely Tight Load And Line Regulation	• High Efficiency Linear Power Supplies
• Extremely Fast Transient Response	• Portable Instrumentation
• Standard 3-Terminal Low Cost TO-220, TO-263	• Constant Current Regulators
• Reverse-battery and “Load Dump” Protection	• Adjustable Power Supplies
• Zero Current Shutdown Mode (5-Pin Versions)	• Battery charger
• Error Flag Signal Output Out-of Regulation (5-Pin Versions)

PRODUCT DESCRIPTION

The SPX2730/31/32/33 is a 3A high accuracy, low dropout voltage regulator (370mV(Typ)@ 3A). The SPX2730/31/32/33 is designed for low voltage application that requires lower dropout voltage and faster transient response. This device is an excellent choice for use in powering low voltage microprocessor that require a lower dropout, faster transient response to regulate from +2.5V to 3.8V supplies and as a post regulator for switching supplies applications.

The SPX2730/31/32/33 offers full protection against over-current faults, reversed input polarity, reversed load insertion, and positive and negative transient voltage. On-Chip trimming adjusts the reference voltage to 1%. Features such as enable pin, Error flag pin are also included in the 5-pin package.

The SPX2730/31/32/33 are offered in 3 & 5 pin TO-220 & TO-263 packages compatible with other 3 terminal regulators.

PIN CONNECTIONS

TO-263-3 (T)

SPX2730

1 2 3

TO-263-5 (T)

SPX2731/32/33

1 2 3 4 5

TO-220-3 (U)

TO-220-5 (U)

SPX2731

SPX2732

SPX2733

SPX2731

SPX2732

SPX2733

SPX2730

SPX2731/32/33

1) ENABLE

1) ENABLE

1)

FLAG

1) ENABLE

1) ENABLE

1)

FLAG

2) INPUT

2) INPUT

2)

INPUT

1 2 3

1 2 3 4 5

2) INPUT

2)

INPUT

2)

INPUT

3) GND

3) GND

3) GND

3) GND

3)

GND

3) GND

4) OUTPUT

4) OUTPUT

4) OUTPUT

4) OUTPUT

4) OUTPUT

4) OUTPUT

5) FLAG

5) ADJUST

5)

ADJUST

5) FLAG

5) ADJUST

5)

ADJUST

Top View

Top View

Front View

Front View

Rev. 12/7/00

						SPX2730/31/32/33
		ABSOLUTE MAXIMUM RATINGS
		Lead Temp. (Soldering, 5 Seconds) ................................ 260°C			Maximum Input Voltage ...................................... 16V
		Storage Temperature Range ......................................................-65° to +150°C
		Operating Junction Temperature Range
		SPX2730/31/32/33 Control Section................................ -45°C +125°C
		SPX2730/31/32/33 Power Transistor............................... -45°C +150°C
		ELECTRICAL CHARACTERISTICS (NOTE 1) at IOUT = 10mA, Ta=25°C, unless otherwise specified.
		PARAMETER		CONDITIONS	Typ	SPX2730/31/32/33		Units
						Min	Max
		3.3V Version
		Output Voltage	(Note 2)	IOUT = 10mA	3.3	3.270	3.330	V
				10mA ≤IOUT≤ 3A, 4.75V≤VIN ≤16V	3.3	3.240	3.360
		5.0V Version
		Output Voltage	(Note 2)	IOUT = 10mA	5.0	4.95	5.05	V
				10mA ≤IOUT≤ 3A, 5.5V≤VIN ≤16V	5.0	4.90	5.10
		All Voltage Options
		Reference Voltage			1.240	1.228	1.252	V
						1.215	1.265
		Reference Voltage		(Note 8)`		1.203	1.277	V
		Line Regulation		IO = 10mA, (VOUT + 1V) ≤ VIN≤ 16V	0.06		0.5	%
		Load Regulation		VIN = VOUT + 5V, 10mA ≤ IOUT≤ IFULLLOAD	0.2		1	%
				(Note 2, 6)
		∆V		Output Voltage (Note 6)	20		100	ppm/°C
		∆T		Temperature Coef.
		Dropout Voltage		IO = 100mA	80		175	mV
				IO = 1.5A	250
				IO = 3A	370		600
		Ground Current		IO = 1.5A, VIN = VOUT, +1V	10		35	mA
				IO = 3A	37
		IGNDDO Ground Pin Current at		VIN = 0.5V less than specified VOUT IOUT = 10mA	0.9			mA
		Dropout
		Current Limit		VOUT = 0V (Note 4)	4.5	3.0		A
		Output Noise Voltage		CL = 10 F	400			V RMS
		(10Hz to 100kHz)		CL = 33 F	260
		IL = 100mA
		Adjust Pin			40		80	nA
		Bias Current					120
		Reference Voltage		(Note 7)	20			ppm/°C
		Temperature
		Coefficient
		Adjust Pin Bias			0.1			nA/°C
		Current Temperature
		Coefficient
		Flag Output (Error Comparator)		SPX2731/SPX2733
		Output Leakage		VOH = 16V	0.01		1.00	A
		Current					2.00
		Output Low		Device set for 5V. VIN = 4.5V	220		300	mV
		Voltage		IOL = 250 A			400

Rev. 12/7/00

SPX2730/31/32/33

(Cont.)

Upper Threshold	Device set for 5V (Note 9)	60	40		mV
Voltage			25
Lower Threshold	Device set for 5V (Note 9)	75		95	mV
Voltage				140
Hysteresis	Device set for 5V (Note 9)	15			mV
ENABLE Input SPX2731/SPX2732
Input Logic Voltage				0.8	V
Low (OFF)			2.4
High (ON)
Enable Pin	VEN = 16V	100		600	V
Input Current				750
	VEN = 0.8V			1	A
				2
Regulator Output	(Note 10)	10		500	A
Current in Shutdown

Notes:

The Bold specifications apply to the full operating temperature range.

Note 1: Maximum positive supply voltage of 60V must be of limited duration (<100msec) and duty cycle.) The maximum continuous supply voltage is 16V. Note 2: Full load current (IFL) is defined as 1.5A for the

Note 3: Dropout voltage is defined as the input-to output differential when the output voltage drops to 99% of its nominal value with VOUT + 1V applied to VIN.

Note 4: VIN = VOUT (NOMINAL) +1V. For example, use VIN= 4.3V for a3.3V regulator. Employ pulse-testing procedures to minimize temperature rise.

Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current to the ground current. Note 6: Output voltage temperature coefficient is defined as the worst case voltage changed divided by the total temperature range.

Note 7: Thermal regulation is defined as the change in the output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 200mA load pulse as VIN = 20V (a 4W pulse) for T = 10ms.

Note 8: VREF ≤ VOUT ≤ (VIN – 1), 2.3V ≤ VIN≤ 16V, 10mA < IL ≤ IFL, TJ ≤ TJMAX

Note 9: Comparator threshold is expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured a 6V input. To express these thresholds in terms of output voltage change, multiply the error amplifier gain = VOUT/VREF = (R1 + R2)R2. For example, at a programmable output voltage of 5V, the Error output is guaranteed to go low when the output drops by 95mVx 5V/ 1.240V = 38mV. Threshold remain constant as a percent of VOUT as VOUT is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed.

Note 10: VEN ≤ 0.8V and VIN ≤ 16V, VOUT = 0.

Rev. 12/7/00