stodd03pqr STMicroelectronics, stodd03pqr Datasheet

stodd03pqr

Manufacturer Part Number

stodd03pqr

Description

Monolithic 2-channel Power Management For High-definition Odd With Integrated Power Switch

Manufacturer

STMicroelectronics

Datasheet

1.STODD03PQR.pdf (16 pages)

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Features

■

Description

The STODD03 is a 2-channel power

management device intended for Blu-Ray

applications based on high density optical storage

devices. It integrates one step-down converter

able to provide 3.3 V fixed output voltage up to

700 mA load, and one step-up converter to

provide the power supply needed for the blue

laser in applications where only 5 V input voltage

is available. The step-up output voltage is

adjustable in the range from 6.5 V to 14 V, with

current capability up to 500 mA. Both step-down

and step-up channels integrate low R

channel and P-channel MOSFETs, allowing high

DC-DC efficiencies. The enable function with true

Table 1.

August 2011

1.2 MHz DC-DC current mode PWM converter

Input voltage from 4 V up to 6 V

Step-down 3.3 V fixed output voltage, up to 700

mA load

Step-up output current up to 500 mA

2% step-down output voltage tolerance

3% step-up output voltage tolerance

Synchronous rectification

Step-down power-save mode at light load

Typical efficiency: 90%

Internal soft-start

Enable functions

True cutoff function for step-up converter

Integrated motor control power switch

Uses tiny capacitors and inductors

Available in QFN16 (4 x 4 mm)

Part number

STODD03

Device summary

for high-definition ODD with integrated power switch

STODD03PQR

Order code

DS_ON

Monolithic 2-channel power management

Doc ID 018980 Rev 1

N-

shutdown makes the step-up section particularly

suitable for optical storage power management

applications. Moreover, the STODD03 has a 1 A

integrated power switch for motor control power

supply. The high switching frequency allows the

use of tiny SMD components. Low output ripple

voltage is achieved thanks to the current mode

PWM topology. The device includes soft-start

control, thermal shutdown, and peak current limit

to prevent damage due to accidental overload.

The STODD03 is packaged in a QFN16 (4 x 4

mm).

Marking

ODD03

QFN16L (4 x 4 mm)

QFN16 (4 x 4 mm)

STODD03

Package

www.st.com

1/16

Related parts for stodd03pqr

stodd03pqr Summary of contents

Page 1

... PWM topology. The device includes soft-start control, thermal shutdown, and peak current limit to prevent damage due to accidental overload. The STODD03 is packaged in a QFN16 ( mm). N- DS_ON Order code Marking STODD03PQR ODD03 Doc ID 018980 Rev 1 STODD03 QFN16L ( mm) Package QFN16 ( mm) www.st.com 1/16 ...

Page 2

Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

STODD03 1 Block diagram Figure 1. Block diagram EN1 V IN_A V IN_P EN2 VIN_PSW Step-up control block Step Up 3 Step Down Power Switch 13 Power Switch Control block 16 1,9,11 ...

Page 4

Absolute maximum ratings 2 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol V Power supply input voltage IN_P VIN_PSW Power switch input voltage V Analog supply input voltage IN_A EN All enable pins voltage XX SW1 Ch1 input switching ...

Page 5

STODD03 3 Pin configuration Figure 2. Pin connections (top view) Table 4. Pin description Pin number Symbol 1 GND_P1 Power ground pin (ch1) 2 FB1 Step-up feedback pin (ch1 Power supply for internal analog circuits IN_A 4 EN2 ...

Page 6

Pin configuration Table 5. Power switch truth table EN- Table 6. Step-up EN1 and EN-SW truth table EN- 6/16 EN- EN1 EN- ...

Page 7

STODD03 4 Typical application Figure 3. Application circuit Table 7. List of external components Component Value C1, C2 µF C4 µF L1 4.7 µH L2 3.3 µH R1, R2 ...

Page 8

Electrical characteristics 5 Electrical characteristics Refer to the typical application circuit 3 OUT2 1,2,3 (unless otherwise specified, typical values are given at T Table 8. Electrical characteristics Symbol Parameter V Input voltage range IN I ...

Page 9

STODD03 Table 8. Electrical characteristics (continued) Symbol Parameter Step-down section FB Feedback voltage 2 I FB2 pin bias current FB2 (2) (3) I Output current OUT2 I Minimum output current OUT_MIN ΔV Reference load regulation OUT2 PWM f PWM switching ...

Page 10

Electrical characteristics Table 8. Electrical characteristics (continued) Symbol Parameter Thermal section T Thermal shutdown SHDN T Thermal shutdown hyst. HYS > OVP, the device stops switching. OUT1 2. Guaranteed by design, but not tested in production. 3. ...

Page 11

STODD03 6 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions, and product status, are available at ECOPACK ...

Page 12

Package mechanical data Figure 4. QFN16 ( mm) drawing 12/16 Doc ID 018980 Rev 1 STODD03 7571203_A ...

Page 13

STODD03 Tape & reel QFNxx/DFNxx (4x4) mechanical data Dim. Min 12 mm. Typ. Max. Min. 330 13.2 0.504 0.795 101 3.898 14.4 4.35 4.35 1 Doc ...

Page 14

Package mechanical data Figure 5. QFN16 ( mm) recommended footprint 14/16 Doc ID 018980 Rev 1 STODD03 ...

Page 15

STODD03 7 Revision history Table 10. Document revision history Date Revision 30-Aug-2011 1 First release. Doc ID 018980 Rev 1 Revision history Changes 15/16 ...

Page 16

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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