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IC-driven DC-DC power supply circuit

Example of power supply circuit using discrete solution and control IC

Lineup

TVS diode

Part number	DF2S6P2FU DF2S6P2CTC	DF2S12P2FU DF2S12P2CTC	DF2S14P2FU DF2S14P2CTC	DF2S23P2FU DF2S23P2CTC
Package	USC CST2C
V_RWM (Max) [V]	5.5	10	12.6	21
V_ESD [kV] ^{[Note 1]}	±30
I_PP [A] ^{[Note 2]}	80	60	50	14

[Note 1] IEC61000-4-2 (contact)
[Note 2] IEC61000-4-5

TVS diode

U-MOS Series MOSFET

Part number		TPN7R504PL	TPN8R408QM	TPN12008QM	TPH7R204PL	TK90S06N1L	TK5R1P08QM	TK6R9P08QM
Package		TSON Advance			SOP Advance	DPAK+	DPAK
V_DSS [V]		40	80	80	40	60	80	80
I_O [A]		38 (68*)	32 (77*)	26 (60*)	48 (72*)	90	84 (105*)	62 (83*)
R_DS(ON)[mΩ] @V_GS= 10 V	Typ.	5.6	6.5	9.6	5.4	2.7	4.2	5.5
R_DS(ON)[mΩ] @V_GS= 10 V	Max	7.5	8.4	12.3	7.2	3.3	5.1	6.9
Polarity		N-ch	N-ch	N-ch	N-ch	N-ch	N-ch	N-ch
Generation		U-MOSⅨ-H	U-MOSⅩ-H	U-MOSⅩ-H	U-MOSⅨ-H	U-MOSⅧ-H	U-MOSⅩ-H	U-MOSⅩ-H

*Silicon limit

U-MOS Series MOSFET

Load switch IC

Part number	TCK2292xG	TCK2297xG	TCK127BG
Package	WCSP6E		WCSP4G
V_IN [V]	1.1 to 5.5		1.0 to 5.5
I_OUT (Max) [A]	2		1
R_ON (Typ.) [mΩ] @V_IN= 5 V	25		46
Slew Rate	4.5 μs, 666 μs, 1.364 ms, 3.38 ms @ V_IN = 5 V		363 μs @ V_IN = 3.3 V
Auto-discharge	✔	N/A	✔

Load switch IC

Small surface mount LDO regulator

Part number	TCR15AG Series	TCR13AG Series	TCR8BM Series	TCR5BM Series	TCR5RG Series	TCR3RM Series	TCR3U Series	TCR2L Series	TAR5 Series
Features	Low dropout voltage High PSRR				High PSRR Low noise Low current consumption		Low current consumption		15V Input voltage Bipolar type
I_OUT (Max) [A]	1.5	1.3	0.8	0.5		0.3		0.2
PSRR (Typ.) [dB] @f=1 kHz	95	90	98	98	100	100	70	-	70
I_B(Typ.) [μA]	25	56	20	19	7	7	0.34	1	170

Small surface mount LDO regulator

Electronic fuse (eFuse IC)

Part number	TCKE800NA TCKE800NL	TCKE805NA TCKE805NL	TCKE812NA TCKE812NL	TCKE712BNL
Package	WSON10B 3.0 x 3.0 x 0.75 mm			WSON10 3.0 x 3.0 x 0.75 mm
V_IN [V]	4.4 to 18			4.4 to 13.2
R_ON (Typ.) [mΩ]	28			53
Return function	NA: Automatic return NL: Latch type (external signal control)			Latch type (external signal control)
V_OVC (Typ.) [V]	-	6.04	15.1	Adjustable

Electronic fuse (eFuse IC)

N-ch MOSFET gate driver IC

Part number	V_{IN_OVLO} Min / Max [V]	V_GS Typ. / Max [V]	N-ch MOSFET type can be driven	Package
TCK401G	Over 28	Max 10 (V_IN ≥ 12 V)	Single high side Common Source	WCSP6E
TCK402G	Over 28	Max 10 (V_IN ≥ 12 V)	Single high side Common Source	WCSP6E
TCK420G	26.50 / 28.50	10 / 11 (V_IN ≥ 5 V)	Single high side Common Drain	WCSP6G
TCK421G	22.34 / 24.05
TCK422G	13.61 / 14.91
TCK423G	13.61 / 14.91	5.6 / 6.3
TCK424G	10.35 / 11.47
TCK425G	5.76 / 6.87

N-ch MOSFET gate driver IC

Contacts

Technical inquiry

Frequently Asked Questions

FAQs

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IC-driven DC-DC power supply circuit

Lineup

TVS diode

U-MOS Series MOSFET

Load switch IC

Small surface mount LDO regulator

Electronic fuse (eFuse IC)

N-ch MOSFET gate driver IC

Contacts

Technical inquiry