MOTOROLA MC33269ST-3.3T3, MC33269T, MC33269DTRK-3.3, MC33269DTRK-5.0, MC33269DT-3.3 Datasheet

MC33269

Low Dropout Positive Fixed

and Adjustable Voltage

Regulators

The MC33269 series are low dropout, medium current, fixed and adjustable, positive voltage regulators specifically designed for use in low input voltage applications. These devices offer the circuit designer an economical solution for precision voltage regulation, while keeping power losses to a minimum.

The regulator consists of a 1.0 V dropout composite PNP±NPN pass transistor, current limiting, and thermal shutdown.

•3.3 V, 5.0 V, 12 V and Adjustable Versions.

2.85 V version available as MC34268.

•Space Saving DPAK, SOP±8 and SOT±223 Power Packages

•1.0 V Dropout

•Output Current in Excess of 800 mA

•Thermal Protection

•Short Circuit Protection

•Output Trimmed to 1.0% Tolerance

DEVICE TYPE / NOMINAL OUTPUT VOLTAGE

MC33269D	Adj	MC33269D±5.0	5.0 V
MC33269DT	Adj	MC33269DT±5.0	5.0 V
MC33269T	Adj	MC33269T±5.0	5.0 V
MC33269D±3.3	3.3 V	MC33269D±12	12 V
MC33269DT±3.3	3.3 V	MC33269DT±12	12 V
MC33269T±3.3	3.3 V	MC33269T±12	12 V
MC33269ST±3.3	3.3 V

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			SOP±8
	8		D SUFFIX
	1		CASE 751
	Gnd/Adj	1	8	NC
	Vout	2	7	Vout
		3	6
	Vin	4	5	NC
			(Top View)

		DPAK
		DT SUFFIX
	1	CASE 369A
	3
	1.	Gnd/Adj
	2.	Vout
1 2 3	3.	Vin

SOT±223

(Top View) ST SUFFIX

CASE 318E

1

3

Heatsink surface (shown as terminal 4 in case outline drawing) is connected to Pin 2.

TO±220AB

T SUFFIX

CASE 221A

1	2	Pin:	1.	Gnd/Adj
		3	2.	Vout
			3.	Vin
		1 2 3
		(Top View)

		Heatsink surface (shown as terminal 4 in
		case outline drawing) is connected to Pin 2.
		ORDERING INFORMATION
		See detailed ordering and shipping information in the package
		dimensions section on page 7 of this data sheet.
Semiconductor Components Industries, LLC, 2000	1	Publication Order Number:
April, 2000 ± Rev. 8		MC33269/D

MC33269

MAXIMUM RATINGS

Rating	Symbol	Value	Unit
Power Supply Input Voltage	Vin	20	V
Power Dissipation
Case 369A (DPAK)
TA = 25°C	PD	Internally Limited	W
Thermal Resistance, Junction±to±Ambient	θJA	92	°C/W
Thermal Resistance, Junction±to±Case	θJC	6.0	°C/W
Case 751 (SOP±8)
TA = 25°C	PD	Internally Limited	W
Thermal Resistance, Junction±to±Ambient	θJA	160	°C/W
Thermal Resistance, Junction±to±Case	θJC	25	°C/W
Case 221A
TA = 25°C	PD	Internally Limited	W
Thermal Resistance, Junction±to±Ambient	θJA	65	°C/W
Thermal Resistance, Junction±to±Case	θJC	5.0	°C/W
Case 318E
TA = 25°C	PD	Internally Limited	W
Thermal Resistance, Junction±to±Ambient	θJA	245	°C/W
Thermal Resistance, Junction±to±Case	θJC	15	°C/W
Operating Junction Temperature Range	TJ	±40 to +150	°C
Storage Temperature	Tstg	±55 to +150	°C

NOTE: ESD data available upon request.

ELECTRICAL CHARACTERISTICS (CO = 10 μF, TA = 25°C, for min/max values TJ = ±40°C to +125°C, unless otherwise noted.)

	Characteristic	Symbol	Min	Typ	Max	Unit
Output Voltage (Iout = 10 mA, TJ = 25°C)		VO				V
3.3 Suffix	(VCC = 5.3 V)		3.27	3.3	3.33
5.0 Suffix	(VCC = 7.0 V)		4.95	5.0	5.05
12 Suffix (VCC = 14 V)			11.88	12	12.12
Output Voltage (Line, Load and Temperature) (Note 1.)		VO				V
(1.25 V ≤ Vin ± Vout ≤ 15 V, Iout = 500 mA)
(1.35 V ≤ Vin ± Vout ≤ 10 V, Iout = 800 mA)
3.3 Suffix			3.23	3.3	3.37
5.0 Suffix			4.9	5.0	5.1
12 Suffix			11.76	12	12.24
Reference Voltage (Iout = 10 mA, Vin ± Vout = 2.0 V, TJ = 25°C)		Vref	1.235	1.25	1.265	V
for Adjustable Voltage
Reference Voltage (Line, Load and Temperature) (Note 1.)		Vref	1.225	1.25	1.275	V
(1.25 V ≤ Vin ± Vout ≤ 15 V, Iout = 500 mA)
(1.35 V ≤ Vin ± Vout ≤ 10 V, Iout = 800 mA)
for Adjustable Voltage
Line Regulation		Regline	±	±	0.3	%
(Iout = 10 mA, Vin = [Vout + 1.5 V] to Vin = 20 V, TJ = 25°C)
Load Regulation (Vin = Vout + 3.0 V, Iout = 10 mA to 800 mA, TJ = 25°C)		Regload	±	±	0.5	%
Dropout Voltage		Vin ± Vout				V
(Iout = 500 mA)			±	1.0	1.25
(Iout = 800 mA)			±	1.1	1.35
Ripple Rejection		RR	55	±	±	dB
(10 Vpp, 120 Hz Sinewave; Iout = 500 mA)
Current Limit (Vin ± Vout = 10 V)		ILimit	800	±	±	mA
Quiescent Current (Fixed Output)		IQ				mA
(1.5 V ≤ Vout ≤ 3.3 V)			±	5.5	8.0
(5 V ≤ Vout ≤ 12 V)			±	±	20

1. The MC33269±12, Vin ± Vout is limited to 8.0 V maximum, because of the 20 V maximum rating applied to Vin.

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MC33269

ELECTRICAL CHARACTERISTICS (CO = 10 μF, TA = 25°C, for min/max values TJ = ±40°C to +125°C, unless otherwise noted.)

Characteristic	Symbol	Min	Typ	Max	Unit
Minimum Required Load Current	ILoad				mA
Fixed Output Voltage		±	±	0
Adjustable Voltage		8.0	±	±
Adjustment Pin Current	IAdj	±	±	120	μA

Internal Schematic	Vin

Vout

Trim Links

VAdj Gnd

This device contains 38 active transistors.

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MC33269

Vin±Vout , DROPOUT VOLTAGE (V)

1.5
1.3
1.1	TA = 25°C	TA = ±40°C
0.9		TA = 125°C

0.7

0.5

0	200	400	600	800	1000
		IO, OUTPUT LOAD CURRENT (mA)

Figure 1. Dropout Voltage versus

Output Load Current

OUTPUT	DEVIATION
V	VOLTAGE
,
O
, OUTPUT	CURRENT
O
I

100

mV/Div

Cin = 10 μF

CO = 10 μF Tantalum

Vin = VO + 3.0 V

Preload = 0.1 A

0.5 A

0 A

20 ms/DIV

Figure 2. Transient Load Regulation

)
FB
(%V	1100								1.6
OVERVOLTAGE INPUT THRESHOLD							IO = 800 mA		1.4
	1060							OUTPUT CURRENT (A)	1.2
	1020								1.0
									0.8
	980								0.6
	940								0.4
									0.2
,
FB(OV)	900								0
	±55	±25	0	25	50	75	100	125
V			TA, AMBIENT TEMPERATURE (°C)

				TA = 25°C
				MC33269D±XX
				L = 25 mm Copper
0	2.0	4.0	6.0	8.0	10	12	14	16

INPUT±OUTPUT VOLTAGE DIFFERENTIAL (V)

Figure 3. Dropout Voltage	Figure 4. MC33269±XX Output DC Current versus
versus Temperature	Input±Output Differential Voltage

	70					70
(dB)			VO = 3.3 V or 5.0 V		(dB)
	60					60
RATIO		VO = 12 V			RATIO
REJECTION					REJECTION
	40	Vin = VO + 3.0 V				40	IL = 800 mA
	50					50	Vin = 8.0 V
							Vout = 5.0 V
RIPPLE		IL = 800 mA			RIPPLE		CAdj = 22 μF
	30	TA = 25°C					TA = 25°C
RR,					RR,	30
	20	1.0	10	100		20	1.0	10	100
	0.1					0.1
			f, FREQUENCY (kHz)					f, FREQUENCY (kHz)

Figure 5. MC33269 Ripple Rejection	Figure 6. MC33269±ADJ Ripple Rejection
versus Frequency	versus Frequency

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