NTE977 Positive 0.1A 5V Voltage Regulator TO-92

Info as pdf-file

Integrated Circuit 3 Terminal Positive Voltage Regulator, 5V, 100mA
TO-92

Description:

The NTE977 is a positive 3-terminal voltage regulator in a TO92 type package. With adequate heat sinking this device can deliver up to 100mA output current. Current limiting is included to limit peak output current to safe value. Safe area protection for the output transistors is provided to limit internal power dissipation. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown circuit takes over preventing the IC from overheating.

When used as a zener diode/resistor combination replacement, this device usually results in an effective output impedance improvement of two orders of magnitude, and lower quiescent current. The NTE977 can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Typical applications include use in logic systems, instrumentation, Hi-Fi, and other solid state electronic equipment. Although designed primarliy as a fixed voltage regulator, this device can be used with external components to obtain adjustment voltages and currents.

Features:

• Output Voltage Tolerances of ±5% over the Temperature Range
• Output Current of 100mA
• Internal Thermal Overload Protection
• Internal Short-Circuit Current Limiting
• Output Transistor Safe-Area Compensation

Absolute Maximum Ratings:

Input Voltage, VIN		30V
Internal Power Dissipation (Note 1), PD		Internally Limited
Operating Junction Temperature Range, Topr		0°C to +70°C
Maximum Junction Temperature, TJ		+125°C
Storage Temperature Range, Tstg		-55°C to +150°C
Lead Temperature (During soldering, 10sec., TL		+230°C

Note 1.

Thermal resistance is typicall +60°C/W junction-to-case, +232°C/W junction-to-ambient, and +88°C/W junction-to-ambient at 400ft min of air. The maximum junction temperature shall not exceed +125°C on electrical parameters.

Electrical Characteristics: (V_OUT = 5V, V_IN = 10V, I_O = 40mA, C_IN = 0.33µF, C_OUT = 0.1µF, Note 2 unless otherwise specified)

Parameter	Symbol	Test Conditions		Min	Typ	Max	Units
Output Voltage	VO	Note 4	TJ = +25°C	4.8	5.0	5.2	V
			1mA </= IO </= 70mA, 7V </= VIN </= 20V	4.75	5.00	5.25	V
Line Regulation	Regline	TJ = +25°C	7V </= VIN </= 20V	-	18	75	mV
			8V </= VIN </= 20V	-	10	54	mV
Load Regulation	Regload	TJ = +25°C	1mA </= IO </= 100mA	-	20	60	mV
			1mA </= IO </= 40mA	-	5	30	mV
Quiescent Current	IB	TJ = +25°C		-	3.0	5.0	mA
		TJ = +125°C		-	-	4.7	mA
Quiescent Current Change	IB	With line, 8V </= VIN </= 20V		-	-	1.0	mA
		With load, 1mA </= IO </= 40mA		-	-	0.1	mA
Output Noise Voltage	VN	TJ = +25°C, f = 10Hz to 10kHz, Note 3		-	40	-	µV
Ripple Rejection	RR	8V </= VIN </= 16V, f = 120Hz		47	62	-	dB
Input Voltage Required to Maintain Line Regulation	TCVO	TJ = +25°C		7	-	-	V

Note 2.	The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length of the package. The data above represents pulse test conditions with junction temperatures as indicated at the initiation of the test.
Note 3.	Recommended minimum load capacitance of 0.01µF to limit high frequency noise bandwidth.
Note 4.	The temperature coefficient of VOUT is typically within ±0.01% VO/°C.

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