ON Semiconductor NCP3063, NCP3063B, NCV3063 Technical data

NCP3063, NCP3063B, NCV3063

1.5 A, Step-Up/Down/

Inverting Switching

Regulators

The NCP3063 Series is a higher frequency upgrade to the popular MC34063A and MC33063A monolithic DC-DC converters. These devices consist of an internal temperature compensated reference, comparator, a controlled duty cycle oscillator with an active current limit circuit, a driver and a high current output switch. This series was specifically designed to be incorporated in Step-Down, Step-Up and Voltage-Inverting applications with a minimum number of external components.

Features

• Operation to 40 V Input

• Low Standby Current

• Output Switch Current to 1.5 A

• Output Voltage Adjustable

• Frequency Operation of 150 kHz

• Precision 1.5% Reference

• New Features: Internal Thermal Shutdown with Hysteresis Cycle-by-Cycle Current Limiting

• Pb-Free Packages are Available

Applications

• Step-Down, Step-Up and Inverting supply applications

• High Power LED Lighting

• Battery Chargers

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MARKING

DIAGRAMS

		3063x
	8	ALYW
		G
	1	1
	SOIC-8
	D SUFFIX	V3063
	CASE 751
		ALYW
		G
		1
		NCP3063x
		AWL
		YYWWG
		1
	8
	1
	PDIP-8	NCV3063
	P, P1 SUFFIX	AWL
	CASE 626	YYWWG
		1

	8		NCP3063		1
				TSD
			SET dominant
			R
			Q
	7		S
		COMPARATOR
		-	S		2
		+		SET dominant
	Rs		Q
	0.15 W		R
		0.2 V		OSCILLATOR	D
Vin	6				3
				CT		L
12 V	+				CT	47 mH
			COMPARATOR
	Cin	+		1.25 V
					2.2 nF
	220 mF			REFERENCE
		-
						Vout
	5			REGULATOR	4
						3.3 V /
						800 mA
	R1		R2	3.9 kW	470 mF	+
	2.4 kW				Cout

NCP

8	3063x
	ALYW
1	G
DFN-8	NCV
SUFFIX	3063
CASE 488	ALYW
	G
NCP3063x =	Specific Device Code
	x = B

A= Assembly Location

L, WL	=	Wafer Lot
Y, YY	=	Year
W, WW	=	Work Week
G	=	Pb-Free Package

(Note: Microdot may be in either location)

ORDERING INFORMATION

See detailed ordering and shipping information in the package dimensions section on page 16 of this data sheet.

Figure 1. Typical Buck Application Circuit

♥ Semiconductor Components Industries, LLC, 2007	1	Publication Order Number:
June, 2007 - Rev. 3		NCP3063/D

			NCP3063, NCP3063B, NCV3063
Switch Collector	1		N.C.	Switch Collector		N.C.
Switch Emitter	2	7	Ipk Sense	Switch Emitter	EP Flag	Ipk Sense
				Timing Capacitor
Timing Capacitor	3	6	VCC			VCC
GND	4	5	Comparator	GND		Comparator
			Inverting			Inverting
	(Top View)		Input		(Top View)	Input
				NOTE: EP Flag must be tied to GND Pin 4
				on PCB

Figure 2. Pin Connections

Figure 3. Pin Connections

			NCP3063
	8			TSD	1
N.C.					Switch Collector
		SET dominant
			R
			Q
			S
	7	COMPARATOR
		-
Ipk Sense			S		2
		+
			Q	SET dominant	Switch Emitter
			R
		0.2 V		OSCILLATOR	3
	6
+VCC				CT	Timing Capacitor
		COMPARATOR		1.25 V
		+		REFERENCE
	5	-		REGULATOR	4
Comparator Inverting Input					GND

Figure 4. Block Diagram

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		NCP3063, NCP3063B, NCV3063
PIN DESCRIPTION
Pin No.	Pin Name	Description
1	Switch Collector	Internal Darlington switch collector
2	Switch Emitter	Internal Darlington switch emitter
3	Timing Capacitor	Timing Capacitor
	Oscillator Input
4	GND	Ground pin for all internal circuits
5	Comparator	Inverting input pin of internal comparator
	Inverting Input
6	VCC	Voltage Supply
7	Ipk Sense	Peak Current Sense Input to monitor the voltage drop across an external resistor to limit the peak
		current through the circuit
8	N.C.	Pin Not Connected
Exposed	Exposed Pad	The exposed pad beneath the package must be connected to GND (Pin 4). Additionally, using
Pad		proper layout techniques, the exposed pad can greatly enhance the power dissipation capabilities
		of the NCP3063.

MAXIMUM RATINGS (measured vs. Pin 4, unless otherwise noted)

Rating	Symbol	Value	Unit
VCC pin 6	VCC	0 to +40	V
Comparator Inverting Input pin 5	VCII	-0.2 to + VCC	V
Darlington Switch Collector pin 1	VSWC	0 to +40	V
Darlington Switch Emitter pin 2 (transistor OFF)	VSWE	-0.6 to + VCC	V
Darlington Switch Collector to Emitter pin 1-2	VSWCE	0 to +40	V
Darlington Switch Current	ISW	1.5	A
Ipk Sense Pin 7	VIPK	-0.2 to VCC + 0.2	V
Timing Capacitor Pin 3	VTCAP	-0.2 to +1.4	V
POWER DISSIPATION AND THERMAL CHARACTERISTICS
Rating	Symbol	Value	Unit
PDIP-8			°C/W
Thermal Resistance Junction-to-Air	RqJA	100
SOIC-8			°C/W
Thermal Resistance Junction-to-Air	RqJA	180
DFN-8			°C/W
Thermal Resistance Junction-to-Air	RqJA	80
Storage Temperature Range	TSTG	-65 to +150	°C
Maximum Junction Temperature	TJ MAX	+150	°C
Operating Junction Temperature Range (Note 3)	TJ	0 to +70	°C
NCP3063
NCP3063B, NCV3063		-40 to +125

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.

1.This device series contains ESD protection and exceeds the following tests:

Pin 1-8: Human Body Model 2000 V per AEC Q100-002; 003 or JESD22/A114; A115Machine Model Method 200 V

2.This device contains latch-up protection and exceeds 100 mA per JEDEC Standard JESD78.

3.The relation between junction temperature, ambient temperature and Total Power dissipated in IC is TJ = TA + Rq • PD

4.The pins which are not defined may not be loaded by external signals

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NCP3063, NCP3063B, NCV3063

ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, TJ = Tlow to Thigh [Note 5], unless otherwise specified)

Symbol	Characteristic	Conditions	Min	Typ	Max	Unit
OSCILLATOR
fOSC	Frequency	(VPin 5 = 0 V, CT = 2.2 nF,	110	150	190	kHz
		TJ = 25°C)
IDISCHG /	Discharge to Charge Current Ratio	(Pin 7 to VCC, TJ = 25°C)	5.5	6.0	6.5	-
ICHG
IDISCHG	Capacitor Discharging Current	(Pin 7 to VCC, TJ = 25°C)		1650		mA
ICHG	Capacitor Charging Current	(Pin 7 to VCC, TJ = 25°C)		275		mA
VIPK(Sense)	Current Limit Sense Voltage	(TJ = 25°C) (Note 6)	165	200	235	mV
OUTPUT SWITCH (Note 7)
VSWCE(DROP)	Darlington Switch Collector to	(ISW = 1.0 A, Pin 2 to GND,		1.0	1.3	V
	Emitter Voltage Drop	TJ = 25°C) (Note 7)
IC(OFF)	Collector Off-State Current	(VCE = 40 V)		0.01	100	mA
COMPARATOR
VTH	Threshold Voltage	TJ = 25°C		1.250		V
		NCP3063	-1.5		+1.5	%
		NCP3063B, NCV3063	-2		+2	%
REGLiNE	Threshold Voltage Line Regulation	(VCC = 5.0 V to 40 V)	-6.0	2.0	6.0	mV
ICII in	Input Bias Current	(Vin = Vth)	-1000	-100	1000	nA
TOTAL DEVICE
ICC	Supply Current	(VCC = 5.0 V to 40 V,			7.0	mA
		CT = 2.2 nF, Pin 7 = VCC,
		VPin 5 > Vth, Pin 2 = GND,
		remaining pins open)
	Thermal Shutdown Threshold			160		°C
	Hysteresis			10		°C

5.NCP3063: Tlow = 0°C, Thigh = +70°C;

NCP3063B, NCV3063: Tlow = -40°C, Thigh = +125°C

6.The VIPK(Sense) Current Limit Sense Voltage is specified at static conditions. In dynamic operation the sensed current turn-off value depends on comparator response time and di/dt current slope. See the Operating Description section for details.

7.Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.

8.NCV prefix is for automotive and other applications requiring site and change control.

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										NCP3063, NCP3063B, NCV3063
	450											190
	400											180							CT = 2.2 nF
																			TJ = 25°C
	350
(kHz)												170
											(Hz)
	300											160
FREQUENCY	250										FREQUENCY
	200											150
	150											140
	100											130
	50											120
	0											110	7	12	16	21	25	29	34	38 40
	0	1	2	3	4	5	6	7	8	9 1011 121314 15161718 1920		3

VOLTAGE DROP (V)

Ct, CAPACITANCE (nF)

Figure 5. Oscillator Frequency vs. Oscillator

Timing Capacitor

2.4													1.25
2.2							VCC = 5.0 V
							IE = 1 A					(V)	1.20
2.0
1.8												DROP	1.15
												VOLTAGE
1.6													1.10
1.4													1.05
1.2
1.0													1.0
-50		0		50			100			150			-50

TJ, JUNCTION TEMPERATURE (°C)

VCC, SUPPLY VOLTAGE (V)

Figure 6. Oscillator Frequency vs. Supply Voltage

VCC = 5.0 V

IC = 1 A

0

50

100

150

TJ, JUNCTION TEMPERATURE (°C)

Figure 7. Emitter Follower Configuration Output Darlington Switch Voltage Drop vs. Temperature

Figure 8. Common Emitter Configuration Output Darlington Switch Voltage Drop vs. Temperature

VOLTAGE DROP (V)

2.0

1.9VCC = 5.0 V

1.8	TJ = 25°C
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0	0.5	1.0	1.5

IE, EMITTER CURRENT (A)

Figure 9. Emitter Follower Configuration Output Darlington Switch Voltage Drop vs. Emitter Current

VOLTAGE DROP (V)

1.5
1.4			VCC = 5.0 V
1.3			TJ = 25°C
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0	0.5	1.0	1.5

IC, COLLECTOR CURRENT (A)

Figure 10. Common Emitter Configuration Output Darlington Switch Voltage Drop vs.

Collector Current

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NCP3063, NCP3063B, NCV3063

Vth, COMPARATOR THRESHOLD VOLTAGE (V)

1.30

1.28

1.26

1.24

1.22

1.20

-40 -25 -10 5 20 35 50 65 80 95 110 125 TJ, JUNCTION TEMPERATURE (°C)

VOLTAGE (V)

Vipk(sense), CURRENT LIMIT SENSE

0.30

0.28

0.26

0.24

0.22

0.20

0.18

0.16

0.14

0.12

0.10

-40 -25 -10 5 20 35 50 65 80 95 110 125 TJ, JUNCTION TEMPERATURE (°C)

Figure 11. Comparator Threshold Voltage vs.	Figure 12. Current Limit Sense Voltage vs.
Temperature	Temperature

ICC, SUPPLY CURRENT (mA)

6.0
5.5
5.0
4.5
4.0
3.5
3.0												CT = 2.2 nF
2.5												Pin 5, 7 = VCC
												Pin 2 = GND
2.0
3.0		8.0		13		18		23		28		33		38		43

VCC, SUPPLY VOLTAGE (V)

Figure 13. Standby Supply Current vs. Supply Voltage

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