5

SP6644/6645 EVALUATION BOARD SCHEMATIC

TABLE: SP6644/6645EB LIST OF MATERIALS

ORDERING INFORMATION

Model

Temperature Range

Package Type

SP6644UEB.................................. -40

°C to +85°C...................SP6644 Evaluation Board

SP6645UEB.................................. -40

°C to +85°C...................SP6645 Evaluation Board

SP6644EU.....................................-40

°C to +85°C......................................8-pin µSOIC

SP6645EU.....................................-40

°C to +85°C......................................8-pin µSOIC

SP6201

3

ENABLE

2

GND

4

RESET_N

1

VIN

5

VOUT

VOUT

VOUT

LX

SHDN

BATTLO

GND

GND

VBATT

R4

U1

SP6644

2

BATTLO

4

SHDN

6

GND

7

LX

3

RLIM

1

VBATT

8

VOUT

5

FB

R1

R3

R2

L1

C4

C2

C3

C1

+0.88V to +3.3V Input

+3.3V

OPEN

OPEN

+

47uF

+3.0V

1uF

Probe Access Points for external connection by the user

+

1

3

2

J1

47uF

100K

2.5K

1M

22uH

SP6644/45 Evaluation Board List of Materials

Ref. Des. Qty.

Manufacturer

Part Number

Layout

Component

Vendor

Size

1

Sipex Corp.

146-6396-01

1"x1.5"

SP6644/45 Eval PC Board

Sipex 978-667-7800

U1

1

Sipex Corp.

SP6644EU or SP6645EU

uSO-8

8-pin uSOIC Step-Up DC/DC Conv

Sipex

U2

1

Sipex Corp.

SP6201EM5-3.0

SOT23-5

5-pin SOT23 200mA LDO 3.0V Output

Sipex

C1,2

2

Sanyo

6TPA47M

"C" size

Poscap Tant. 6.3V 47uF SM 0.1ohm ESR

Sanyo 978-922-6573

C3

1

TDK Corp

C2012X5R1A105K

805

Ceramic 10V 1uF SM 0.05ohm ESR

TDK 847-803-6100

C4

0

Open

805

Open

Open

L1

1

Sumida

CD43-220

5x5mm

22uH, 0.68A, 0.38ohm, SM Inductor

Sumida 847-956-0666

R1

0

Open

1206

Open

Open

R2

1

Panasonic

ERJ-8ENFJ1003

1206

100K ohm 1/8W 1% 1206 SM

Digi-Key 800-344-4539

R3

1

Panasonic

ERJ-8ENF2491

1206

2.49K ohm 1/8W 1% 1206 SM

800-Digi-Key

R4

1

Panasonic

ERJ-8GEY105

1206

1M ohm 1/8W 5% 1206 SM

800-Digi-Key

TP

7

Mill-Max

0300-115-01-4727100

.042 Dia

Test Point Female Pin

800-Digi-Key

J1

1

Sullins

PTC36SAAN

.23x.12

3-Pin Header

800-Digi-Key

1

Sullins

STC02SYAN

.2x.1

Shunt

800-Digi-Key