NSC LM2930T-8.0, LM2930SX-8.0, LM2930S-8.0, LM2930S-5.0, LM2930-8.0MWC Datasheet

April 1998

LM2930

3-Terminal Positive Regulator

General Description

The LM2930 3-terminal positive regulator features an ability to source 150 mA of output current with an input-output differential of 0.6V or less. Efficient use of low input voltages obtained, for example, from an automotive battery during cold crank conditions, allows 5V circuitry to be properly powered with supply voltages as low as 5.6V. Familiar regulator features such as current limit and thermal overload protection are also provided.

Designed originally for automotive applications, the LM2930 and all regulated circuitry are protected from reverse battery installations or 2 battery jumps. During line transients, such as a 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 LM2930 cannot be harmed by temporary mirror-image insertion.

Fixed outputs of 5V and 8V are available in the plastic TO-220 and TO-263 power packages.

Features

n Input-output differential less than 0.6V n Output current in excess of 150 mA

n Reverse battery protection n 40V load dump protection

n Internal short circuit current limit

n Internal thermal overload protection n Mirror-image insertion protection

n P+ Product Enhancement tested

Voltage Range

LM2930T-5.0:	5V
LM2930T-8.0:	8V
LM2930S-5.0:	5V
LM2930S-8.0:	8V

Connection Diagrams

(TO-220) Plastic Package

DS005539-1

Front View

Order Number LM2930T-5.0 or LM2930T-8.0 See NS Package Number T03B

(TO-263)

Plastic Surface-Mount Package

DS005539-7

Top View

DS005539-8

Side View

Order Number LM2930S-5.0 or LM2930S-8.0 See NS Package Number TS3B

Regulator Positive Terminal-3 LM2930

© 1998 National Semiconductor Corporation

DS005539

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Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.

Input Voltage
Operating Range	26V
Overvoltage Protection	40V

Reverse Voltage (100 ms)	−12V
Reverse Voltage (DC)	−6V
Internal Power Dissipation (Note 2)	Internally Limited
Operating Temperature Range	−40ÊC to +85ÊC
Maximum Junction Temperature	125ÊC
Storage Temperature Range	−65ÊC to +150ÊC
Lead Temp. (Soldering, 10 seconds)	230ÊC

Electrical Characteristics (Note 3)

LM2930-5.0 VIN=14V, IO=150 mA, Tj=25ÊC (Note 6), C2=10 µF, unless otherwise specified

			Tested	Design
Parameter	Conditions	Typ	Limit	Limit	Unit
			(Note 4)	(Note 5)
Output Voltage		5	5.3		VMAX
			4.7		VMIN
	6V≤VIN≤26V, 5 mA≤IO≤150 mA			5.5	VMAX
	−40ÊC ≤TJ≤125ÊC			4.5	VMIN
Line Regulation	9V≤VIN≤16V, IO=5 mA	7	25		mVMAX
	6V≤VIN≤26V, IO=5 mA	30	80		mVMAX
Load Regulation	5 mA≤IO≤150 mA	14	50		mVMAX
Output Impedance	100 mADC & 10 mArms, 100 Hz−10 kHz	200			m Ω
Quiescent Current	IO=10 mA	4	7		mAMAX
	IO=150 mA	18	40		mAMAX
Output Noise Voltage	10 Hz−100 kHz	140			µV rms
Long Term Stability		20			mV/1000 hr
Ripple Rejection	fO=120 Hz	56			dB
Current Limit		400	700		mAMAX
			150		mAMIN
Dropout Voltage	IO=150 mA	0.32	0.6		VMAX
Output Voltage Under	−12V ≤VIN≤40V, RL=100Ω		5.5		VMAX
Transient Conditions			−0.3		V MIN

Electrical Characteristics (Note 3)

LM2930-8.0 (VIN=14V, IO=150 mA, Tj=25ÊC (Note 6), C2=10 µF, unless otherwise specified)

			Tested	Design
Parameter	Conditions	Typ	Limit	Limit	Unit
			(Note 4)	(Note 5)
Output Voltage		8	8.5		VMAX
			7.5		VMIN
	9.4V≤VIN≤26V, 5 mA≤IO≤150 mA,			8.8	VMAX
	−40ÊC ≤TJ≤125ÊC			7.2	VMIN
Line Regulation	9.4V≤VIN≤16V, IO=5 mA	12	50		mVMAX
	9.4V≤VIN≤26V, IO=5 mA	50	100		mVMAX
Load Regulation	5 mA≤IO≤150 mA	25	50		mVMAX
Output Impedance	100 mADC & 10 mArms, 100 Hz−10 kHz	300			m Ω
Quiescent Current	IO=10 mA	4	7		mAMAX
	IO=150 mA	18	40		mAMAX
Output Noise Voltage	10 Hz−100 kHz	170			µV rms
Long Term Stability		30			mV/1000 hr
Ripple Rejection	fO=120 Hz	52			dB

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Electrical Characteristics (Note 3) (Continued)

LM2930-8.0 (VIN=14V, IO=150 mA, Tj=25ÊC (Note 6), C2=10 µF, unless otherwise specified)

			Tested	Design
Parameter	Conditions	Typ	Limit	Limit	Unit
			(Note 4)	(Note 5)
Current Limit		400	700		mAMAX
			150		mAMIN
Dropout Voltage	IO=150 mA	0.32	0.6		VMAX
Output Voltage Under	−12V ≤VIN≤40V, RL=100Ω		8.8		VMAX
Transient Conditions			−0.3		V MIN

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given, however, the typical value is a good indication of device performance.

Note 2: Thermal resistance without a heat sink for junction to case temperature is 3ÊC/W and for case to ambient temperature is 50ÊC/W for the TO-220, 73ÊC/W for the TO-263. If the TO-263 package is used, the thermal resistance can be reduced by increasing the P.C. board copper area thermally connected to the package. Using 0.5 square inches of copper area, θJA is 50ÊC/W; with 1 square inch of copper area, θJA is 37ÊC/W; and with 1.6 or more square inches of copper area, θJA is 32ÊC/W.

Note 3: All characteristics are measured with a capacitor across the input of 0.1 µF and a capacitor across the output of 10 µF. All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tW≤10 ms, duty cycle≤5%). Output voltage changes due to changes in internal temperature must be taken into account separately.

Note 4: Guaranteed and 100% production tested.

Note 5: Guaranteed (but not 100% production tested) over the operating temperature and input current ranges. These limits are not used to calculate outgoing quality levels.

Note 6: To ensure constant junction temperature, low duty cycle pulse testing is used.

Typical Application

DS005539-5

*Required if regulator is located far from power supply filter.

**COUT must be at least 10 µF to maintain stability. May be increased without bound to maintain regulation during transients. Locate as close as possible to the regulator. This capacitor must be rated over the same operating temperature range as the regulator. The equivalent series resistance (ESR) of this capacitor should be less than 1Ω over the expected operating temperature range.

Typical Performance Characteristics

Output Impedance

Overvoltage Supply Current

Reverse Supply Current

DS005539-11	DS005539-12
	DS005539-13

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