ROHM BA178M09FP, BA178M08T, BA178M08FP, BA178M07T, BA178M07FP Datasheet

BA178M!!T / BA178M!!FP series

Regulator ICs

Standard 78M series, 3-pin regulator

BA178M!!T / BA178M!!FP series

The BA178M!!T and BA178M!!FP series are 3-pin, fixed positive output voltage regulators. These regulators are used to provide a stabilized output voltage from a fluctuating DC input voltage.

There are 11 fixed output voltages, as follows : 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, and 24V. The maximum current capacity is 0.5A for each of the above voltages.

"Application

Constant voltage power supply

"Features

1)Built-in overcurrent protection circuit and thermal shutdown circuit.

2)Excellent ripple regulation.

3)Available in TO-220FP and TO252-3 packages, to meet wide range of applications.

4)Compatible with other manufacturers' regulators.

5)Richly diverse lineup. (5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24 V)

"Product codes

Output voltage (V)	Product No.	Output voltage (V)	Product No.
5	BA178M05T / FP	12	BA178M12T / FP
6	BA178M06T / FP	15	BA178M15T / FP
7	BA178M07T / FP	18	BA178M18T / FP
8	BA178M08T / FP	20	BA178M20T / FP
9	BA178M09T / FP	24	BA178M24T / FP
10	BA178M10T / FP	−	−

BA178M!!T / BA178M!!FP series

Regulator ICs

"Internal circuit configuration diagram

(1)

INPUT

R4	R10		R8	R9	R13
			Q8
Q12				Q9	D2
							Q16
					Q15		Q17
						R21	R12
R5	Q13					R17	R11
				Q10				(3)
				Q6				OUTPUT
R6
			Q5
				R15
		R1	R2	R16			R20
				C1	Q11
D1
	Q18		Q7
			Q2	Q4
	Q14	Q1		Q3			R19
				R14
R7	R22		R10	R3
				D3				(2)
								COMMON

"Absolute maximum ratings (Ta=25°C)

^Common specifications for BA178M!!T / FP seriesp

	Parameter		Symbol	Limits	Unit
	Applied voltage		VIN	35	V
	Power dissipation	TO220FP	Pd	2.0	W
		TO252−3		1.0
	Operating temperature		Topr	−40~+85	°C
	Storage temperature		Tstg	−55~+150	°C

Reduced by 16 mW (TO220FP) and 8 mW (TO252-3) for each increase in Ta of 1°C over 25°C (without heat sink).

"Recommended operating conditions (Ta=25°C) BA178M05T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	7.5	−	20	V
Output current	IO	−	−	0.5	A

BA178M06T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	8.5	−	21	V
Output current	IO	−	−	0.5	A

BA178M07T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	9.5	−	22	V
Output current	IO	−	−	0.5	A

BA178M09T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	11.5	−	24	V
Output current	IO	−	−	0.5	A

BA178M08T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	10.5	−	23	V
Output current	IO	−	−	0.5	A

BA178M10T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	12.5	−	25	V
Output current	IO	−	−	0.5	A

BA178M!!T / BA178M!!FP series

Regulator ICs

BA178M12T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	15	−	27	V
Output current	IO	−	−	0.5	A

BA178M15T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	17.5	−	30	V
Output current	IO	−	−	0.5	A

BA178M18T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	21	−	33	V
Output current	IO	−	−	0.5	A

BA178M20T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	23	−	33	V
Output current	IO	−	−	0.5	A

BA178M24T / FP

Parameter	Symbol	Min.	Typ.	Max.	Unit
Input voltage	VIN	27	−	33	V
Output current	IO	−	−	0.5	A

"Electrical characteristics

<BA178M05T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=10V, IO=350mA)

	Parameter	Symbol	Min.	Typ.	Max.	Unit	Conditions	Measurement
								circuit
	Output voltage 1	VO1	4.8	5.0	5.2	V	IO=350mA	Fig.1
	Output voltage 2	VO2	4.75	−	5.25	V	VIN=7.5~20V, IO=5~350mA	Fig.1
	Input stability 1	Reg.I1	−	3	100	mV	VIN=7~25V, IO=200mA	Fig.1
	Input stability 2	Reg.I2	−	1	50	mV	VIN=8~12V, IO=200mA	Fig.1
	Ripple rejection ratio	R.R.	62	78	−	dB	eIN=1Vrms, f=120Hz, IO=100mA	Fig.2
	Load regulation 1	Reg.L1	−	20	100	mV	IO=5~500mA	Fig.1
	Load regulation 2	Reg.L2	−	10	50	mV	IO=5~200mA	Fig.1
	Temperature coefficient of output voltage	TCVO	−	−1.0	−	mV/°C	IO=5mA, Tj=0~125°C	Fig.1
	Output noise voltage	Vn	−	40	−	µV	f=10Hz~100kHz	Fig.3
	Minimum I/O voltage differential	Vd	−	2.0	−	V	IO=500mA	Fig.4
	Bias current	Ib	−	4.5	6.0	mA	IO=0mA	Fig.5
	Bias current change 1	Ib1	−	−	0.5	mA	IO=5~350mA	Fig.5
	Bias current change 2	Ib2	−	−	0.8	mA	VIN=8~25V, IO=200mA	Fig.5
	Peak output current	IO−P	−	875	−	mA	Tj=25°C	Fig.1
	Output short-circuit current	IOS	−	0.4	−	A	VIN=25V	Fig.6

BA178M!!T / BA178M!!FP series

Regulator ICs

<BA178M06T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=11V, IO=350mA)

	Parameter	Symbol	Min.	Typ.	Max.	Unit	Conditions	Measurement
								circuit
	Output voltage 1	VO1	5.75	6.0	6.25	V	IO=350mA	Fig.1
	Output voltage 2	VO2	5.7	−	6.3	V	VIN=8.5~21V, IO=5~350mA	Fig.1
	Input stability 1	Reg.I1	−	3	100	mV	VIN=8~25V, IO=200mA	Fig.1
	Input stability 2	Reg.I2	−	1	50	mV	VIN=9~25V, IO=200mA	Fig.1
	Ripple rejection ratio	R.R.	60	74	−	dB	eIN=1Vrms, f=120Hz, IO=100mA	Fig.2
	Load regulation 1	Reg.L1	−	20	120	mV	IO=5~500mA	Fig.1
	Load regulation 2	Reg.L2	−	10	60	mV	IO=5~200mA	Fig.1
	Temperature coefficient of output voltage	TCVO	−	−0.5	−	mV/°C	IO=5mA, Tj=0~125°C	Fig.1
	Output noise voltage	Vn	−	60	−	µV	f=10Hz~100kHz	Fig.3
	Minimum I/O voltage differential	Vd	−	2.0	−	V	IO=500mA	Fig.4
	Bias current	Ib	−	4.5	6.0	mA	IO=0mA	Fig.5
	Bias current change 1	Ib1	−	−	0.5	mA	IO=5~350mA	Fig.5
	Bias current change 2	Ib2	−	−	0.8	mA	VIN=9~25V, IO=200mA	Fig.5
	Peak output current	IO−P	−	875	−	mA	Tj=25°C	Fig.1
	Output short-circuit current	IOS	−	0.4	−	A	VIN=25V	Fig.6

<BA178M07T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=13V, IO=350mA)

	Parameter	Symbol	Min.	Typ.	Max.	Unit	Conditions	Measurement
								circuit
	Output voltage 1	VO1	6.7	7.0	7.3	V	IO=350mA	Fig.1
	Output voltage 2	VO2	6.65	−	7.35	V	VIN=9.5~22V, IO=5~350mA	Fig.1
	Input stability 1	Reg.I1	−	4	100	mV	VIN=9~25V, IO=200mA	Fig.1
	Input stability 2	Reg.I2	−	1	50	mV	VIN=10~25V, IO=200mA	Fig.1
	Ripple rejection ratio	R.R.	57	71	−	dB	eIN=1Vrms, f=120Hz, IO=100mA	Fig.2
	Load regulation 1	Reg.L1	−	20	140	mV	IO=5~500mA	Fig.1
	Load regulation 2	Reg.L2	−	10	70	mV	IO=5~200mA	Fig.1
	Temperature coefficient of output voltage	TCVO	−	−0.5	−	mV/°C	IO=5mA, Tj=0~125°C	Fig.1
	Output noise voltage	Vn	−	70	−	µV	f=10Hz~100kHz	Fig.3
	Minimum I/O voltage differential	Vd	−	2.0	−	V	IO=500mA	Fig.4
	Bias current	Ib	−	4.5	6.0	mA	IO=0mA	Fig.5
	Bias current change 1	Ib1	−	−	0.5	mA	IO=5~350mA	Fig.5
	Bias current change 2	Ib2	−	−	0.8	mA	VIN=10~25V, IO=200mA	Fig.5
	Peak output current	IO−P	−	875	−	mA	Tj=25°C	Fig.1
	Output short-circuit current	IOS	−	0.4	−	A	VIN=25V	Fig.6