IC-driven DC-DC power supply circuit

Example of power supply circuit using discrete solution and control IC

IC-driven DC-DC power supply circuit

Lineup

TVS diode

Part number

DF2S6P2FU

DF2S6P2CTC

DF2S12P2FU

DF2S12P2CTC

DF2S14P2FU

DF2S14P2CTC

DF2S23P2FU

DF2S23P2CTC

Package

          USC                                        CST2C

VRWM (Max) [V]

5.5

10

12.6

21

VESD [kV] [Note 1]

±30

IPP [A] [Note 2]

80

60

50

14

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

U-MOS Series MOSFET

Part number

TPN7R504PL

TPN8R408QM TPN12008QM TPH7R204PL TK90S06N1L TK5R1P08QM TK6R9P08QM

Package

TSON Advance

SOP Advance DPAK+ DPAK

VDSS [V] 

40

80 80 40 60 80

80

IO [A] 

38 (68*)

32 (77*) 26 (60*) 48 (72*) 90 84 (105*)

62 (83*)

RDS(ON) [mΩ]
@VGS = 10 V

Typ.

5.6

6.5 9.6 5.4 2.7 4.2

5.5

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

Load switch IC

Part number

TCK2292xG

TCK2297xG

TCK127BG

Package

WCSP6E WCSP4G

VIN [V]

1.1 to 5.5

1.0 to 5.5

IOUT (Max) [A]

2

1

RON (Typ.) [mΩ] @VIN = 5 V  

25

46

Slew Rate

4.5 μs,  666 μs,  1.364 ms,  3.38 ms @ VIN = 5 V

363 μs @ VIN = 3.3 V

Auto-discharge

N/A

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

IOUT (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
IB(Typ.) [μA] 25 56 20 19 7 7 0.34 1 170

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

VIN [V] 4.4 to 18 4.4 to 13.2
RON (Typ.) [mΩ] 28 53
Return function NA: Automatic return
NL: Latch type (external signal control)
Latch type (external signal control)

VOVC (Typ.) [V]

- 6.04 15.1 Adjustable

N-ch MOSFET gate driver IC

Part number

VIN_OVLO

Min / Max  [V]

VGS

Typ. / Max [V]

N-ch MOSFET type

can be driven

Package
TCK401G Over 28

Max 10

(VIN ≥ 12 V)

Single high side

Common Source

WCSP6E
TCK402G
TCK420G 26.50 / 28.50

10 / 11

(VIN ≥ 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

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