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BD9DA00MF

Datasheet

TSZ02201-0J2J0AB01940-1-2

© 2025 ROHM Co., Ltd. All rights reserved.

18.Mar.2025 Rev.001

www.rohm.com

TSZ22111 • 15 • 001

Application Characteristic Data(Reference Data)

Table 4. Specification of Application

Parameter

Symbol

Specification Value

Input Voltage

VIN

8 V to 16 V

Output Voltage

VOUT

1.2 V (Typ)

Maximum Output Current

IOUTMAX

12 A

Switching Frequency

fSW

800 kHz (Typ)

Operation Mode

-

LLM Mode

Operating Temperature

Ta

25 °C

VIN

BST

BD9DA00MF

SW

FB

VOUT

L

VCC

CBST

CVCC

AGND

PGD

ILIM

COUT1

CIN1

RUP

RDOWN

MODE

PGND

SS/REF

VIN

EN

EN

RGND

RMODE

RILIM

CSS1

CSS2

CFB

RPGD

CIN2

CIN3

CIN4

CIN5

VCC

R0

COUT2

COUT3 COUT4

PGD

Figure 51. Application Circuit

Table 5. List of Components (Reference Example)

Part No.

Value

Part Name

Type

Size Code (mm)

Manufacturer

L

0.33 μH

SPM6550CT-R33L

Inductor

-

TDK

CIN1(Note 1)

1 μF, (X6S, 25 V)

GRM155C81E105KE11

Ceramic Capacitor

1005

Murata

CIN2(Note 1)

1 μF, (X6S, 25 V)

GRM155C81E105KE11

Ceramic Capacitor

1005

Murata

CIN3

10 μF, (X7R, 25 V)

GRM31CR71E106KA12

Ceramic Capacitor

3216

Murata

CIN4

10 μF, (X7R, 25 V)

GRM31CR71E106KA12

Ceramic Capacitor

3216

Murata

CIN5

10 μF, (X7R, 25 V)

GRM31CR71E106KA12

Ceramic Capacitor

3216

Murata

COUT1

47 μF, (X5R, 6.3 V)

GRM21BR60J476ME01

Ceramic Capacitor

2012

Murata

COUT2

47 μF, (X5R, 6.3 V)

GRM21BR60J476ME01

Ceramic Capacitor

2012

Murata

COUT3

47 μF, (X5R, 6.3 V)

GRM21BR60J476ME01

Ceramic Capacitor

2012

Murata

COUT4

47 μF, (X5R, 6.3 V)

GRM21BR60J476ME01

Ceramic Capacitor

2012

Murata

CVCC

1 μF, (X6S, 25 V)

GRM155C81E105KE11

Ceramic Capacitor

1005

Murata

CBST

0.1 μF, (X7R, 25 V)

GRM155R71E104KE14

Ceramic Capacitor

1005

Murata

CSS1

0.022 μF, (X7R, 25 V)

GRM155R71E223KA61

Ceramic Capacitor

1005

Murata

CSS2

0.022 μF, (X7R, 25 V)

GRM155R71E223KA61

Ceramic Capacitor

1005

Murata

CFB(Note 2)

2200 pF, (X7R, 50 V)

GRM155R71H222KA01

Ceramic Capacitor

1005

Murata

RILIM

5.1 kΩ, (1 %, 1/16 W)

MCR01SMQPF5101

Chip Resistor

1005

ROHM

RMODE

240 kΩ, (1 %, 1/16 W)

MCR01SMQPF2403

Chip Resistor

1005

ROHM

RPGD

10 kΩ, (1 %, 1/16 W)

MCR01SMQPF1002

Chip Resistor

1005

ROHM

R0(Note 3)

Short

-

-

-

-

RUP

1.5 kΩ, (1 %, 1/16 W)

MCR01SMQPF1501

Chip Resistor

1005

ROHM

RDOWN

1.5 kΩ, (1 %, 1/16 W)

MCR01SMQPF1501

Chip Resistor

1005

ROHM

(Note 1) In order to reduce the influence of high frequency noise, connect a 1 μF ceramic capacitor CIN1, CIN2 as close to the VIN pin and the PGND pin as possible.

(Note 2) CFB

is option, used to adjust the frequency response. If you are using a value other than those listed in Table 3, please confirm with the actual application.

(Note 3) R0

is an option, used for feedback’s frequency response measurement. By inserting a resistor at R0, it is possible to measure the frequency response

(phase margin) using a FRA. However, the resistor is not used in actual application, use this resistor pattern in short-circuit mode.