XC9210_1 datasheet(7/12 Pages) TOREX

Part #	XC9210

Description	Synchronous Step-Down DC / DC Controller ICs

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Manufacturer	TOREX [Torex Semiconductor]

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XC9210

Series

VOUT

(V)

RFB11

(kΩ)

RFB12

(kΩ)

CFB1

(pF)

VOUT

(V)

RFB11

(kΩ)

RFB12

(kΩ)

CFB1

(pF)

1.2

110

330

100

2.5

390

220

33

1.5

220

330

62

2.7

360

180

33

1.8

220

62

3.0

560

240

24

2.0

330

270

39

3.3

200

75

62

2.2

390

270

33

5.0

82

18

160

●

Low Input Voltage (2.0V ≦ VIN ≦ 5.0V, IOUT ≦ 2A)

EXT1: CPH6315 (P-ch MOSFET: SANYO), IRLMS6702 (P-ch MOSFET: IR)

EXT2: CPH3409 (N-ch MOSFET: SANYO), IRLMS1902 (P-ch MOSFET: IR)

●

High Input Voltage (5.0V ≦ VIN ≦ 10.0V, IOUT ≦ 2A)

EXT1: CPH3308 (P-ch MOSFET: SANYO), IRLMS5703 (P-ch MOSFET: IR)

EXT2: CPH3408 (N-ch MOSFET: SANYO), IRLMS1503 (P-ch MOSFET: IR)

L :

22μH

(CDRH125, SUMIDA)

CIN: 16V, 47μF (Tantalum MCE Series, NICHICEMI)

CL: 16V, 47μF x 2 (Tantalum MCE Series, NICHICEMI)

SD: CMS02

(Schottky Barrier Diode, TOSHIBA)

[External Components]

Transistor :

When RFB11 = 200kΩ and RFB12 = 75kΩ, VOUT1 = 0.9×( 200k + 75k ) / 75k = 3.3V.

PART NUMBER MANUFACTURER

L VALUE

(μH)

SERIAL

RESISTANCE (Ω)

RATED CURRENT

(A)

W x L (mm)

H (mm)

CDR125-220

SUMIDA

22

36m

2.8

12.3×12.3

6.0

PART NUMBER MANUFACTURER

VOLTAGE (V)

CAPACITANCE (μF)

W x L (mm)

H (mm)

16MCE476MD2

NICHICHEMI

16.0

47

4.6×5.8

3.2±0.2

PART NUMBER MANUFACTURER REVERSE

CURRENT

FORWARD

CURRENT

VFmax (V)

IRmax (A)

W x L (mm)

H (mm)

CMS02

TOSHIBA

30

3

0.4 (IF=3A) 0.5m (VR=30V)

2.4×4.7

0.98±0.1

■

EXTERNAL COMPONENTS

●

COIL

●

INPUT / OUTPUT CAPACITANCE

●

SCHOTTKY BARRIER DIODE

ABSOLUTE MAX. RATINGS

PART

NUMBER

MANUFACTURER

VDSS (V) VGSS (V)

ID (A)

RDS (ON)

MAX.(mΩ)

Ciss (TYP.) (pF) VGS (off) (V)

PKG.

CPH6315

SANYO

- 20

±

10

- 3.0

150 (Vgs= -4.0V) 410 (Vds= -10V) - 1.4 (MAX.)

CPH6

CPH3308

SANYO

- 30

±

20

- 4.0

140 (Vgs= -4.0V) 560 (Vds= -10V) - 2.4 (MAX.)

CPH3

IRLMS6702

IR

- 20

±

12

- 2.3

200 (Vgs= -4.5V) 210 (Vds= -15V) - 0.7 (MAX.)

Micro6

IRLMS5703

IR

- 30

±

20

- 2.3

400 (Vgs= -4.5V) 170 (Vds= -25V) - 1.0 (MAX.)

Micro6

●

TRANSISTOR (P-ch MOSFET)

ABSOLUTE MAX. RATINGS

PART

NUMBER

MANUFACTURER

VDSS (V) VGSS (V)

ID (A)

RDS (ON)

MAX.(mΩ)

Ciss (TYP.) (pF) VGS (off) (V)

PKG.

CPH3409

SANYO

30

±

10

5.0

42 (Vgs=4.0V)

630 (Vds= 10V) 1.3 (MAX.)

CPH6

CHP3408

SANYO

30

±

20

5.0

68 (Vgs=4.0V)

480 (Vds= 10V) 2.4 (MAX.)

CPH3

IRLMS1902

IR

20

±

12

3.2

100 (Vgs=4.5V)

300 (Vds= 15V) 0.7 (MAX.)

Micro6

IRLMS1503

IR

30

±

20

3.2

200 (Vgs=4.5V)

210 (Vds= 25V) 1.0 (MAX.)

Micro6

●

TRANSISTOR (N-ch MOSFET)

[Example of Calculation]

[Typical Example]

■

OPERATIONAL EXPLANATION (Continued)

< Output Voltage Setting >

Output voltage can be set by adding external split resistors. Output voltage is determined by the following equation, based

on the values of RFB11 (RFB21) and RFB12 (RFB22). The sum of RFB11 (RFB21) and RFB12 (RFB22) should normally be 1 MΩ or

less.

VOUT = 0.9×( RFB11 + RFB12 ) / RFB12

The value of CFB1(CFB2), speed-up capacitor for phase compensation, should be fzfb= 1 / (2×π×CFB1×RFB11) which is

equal to 12kHz. Adjustments are required from 1kHz to 50kHz depending on the application, value of inductance (L), and

value of load capacity (CL).

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XC9210 Datasheet(PDF) 7 Page - Torex Semiconductor

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