AAT1151 View Datasheet(PDF) - Skyworks Solutions

Part Name

Description

MFG CO.

AAT1151

850kHz 700mA Synchronous Buck DC/DC Converter

Skyworks Solutions 

DATA SHEET

AAT1151

850kHz 700mA Synchronous Buck DC/DC Converter

AAT1151 Dissipation

PTOTAL

=

IO2

•

(RDS(ON)H

• VO

VIN

+

RDS(ON)L

•

(VIN

-VO))

+

(tsw

•

FS

•

IO

+

IQ)

•

VIN

(0.7A)2 • (0.2Ω • 1.5V + 0.187Ω • (4.2V - 1.5V))

=

+ (20nsec • 850kHz • 0.7A + 0.3mA) • 4.2V = 0.145W

4.2V

TJ(MAX) = TAMB + ΘJA • PLOSS = 85°C + 150°C/W • 0.145W = 107°C (MSOP-8)

= 85°C + 50°C/W • 0.145W = 92°C (QFN33-16)

Manufacturer

Taiyo Yuden

Toko

Sumida

Sumida

Sumida

Murata

Murata

Murata

Part Number

NPO5DB4R7M

A914BYW-3R5M-D52LC

CDRH5D28-3R0

CDRH5D28-4R2

CDRH5D18-4R1

LQH55DN4R7M03

LQH66SN4R7M03

CDRH3D16-3R3

Value

4.7μH

3.5μH

3.0μH

4.2μH

4.1μH

4.7μH

4.7μH

3.3μH

Max DC

Current

1.4A

1.34A

2.4A

2.2A

1.95A

2.7A

2.2A

1.1A

DCR (Ω)

0.038

0.073

0.024

0.031

0.057

0.041

0.025

0.063

Table 1: Surface Mount Inductors.

Size (mm)

LxWxH

5.9 x 6.1 x 2.8

5.0 x 5.0 x 2.0

5.7 x 5.7 x 3.0

5.7 x 5.7 x 3.0

5.7 x 5.7 x 2.0

5.0 x 5.0 x 4.7

6.3 x 6.3 x 4.7

3.8 x 3.8 x 1.8

Type

Shielded

Shielded

Shielded

Shielded

Shielded

Non-Shielded

Shielded

Shielded

Manufacturer

Murata

Murata

Murata

Murata

Part Number

GRM40 X5R 106K 6.3

GRM42-6 X5R 106K 6.3

GRM21BR60J226ME39L

GRM21BR60J106ME39L

Value

10μF

10μF

22μF

10μF

Voltage

6.3V

6.3V

6.3V

6.3V

Table 2: Surface Mount Capacitors.

Temp. Co.

X5R

X5R

X5R

X5R

Case

0805

1206

0805

0805

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

14

201991B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013

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