STODD03 STMicroelectronics, STODD03 Datasheet
STODD03
Specifications of STODD03
Available stocks
Related parts for STODD03
STODD03 Summary of contents
Page 1
... 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 ( mm). N- DS_ON Order code ...
Page 2
... Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2/16 Doc ID 018980 Rev 1 STODD03 ...
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 GND Doc ID 018980 Rev 1 Block diagram SW1 14 12 Out1 2 FB1 8 SW2 10 FB2 PSW 5 OUT ...
Page 4
... Functional operation under these conditions is not implied. All values are referred to gnd. Table 3. Thermal data Symbol R Thermal resistance junction-case thJC R Thermal resistance junction-ambient thJA 4/16 Parameter Parameter Doc ID 018980 Rev 1 STODD03 Value Unit - IN_A -0 -0 ...
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 Step-down enable pin. Connect to V Power switch output pin. PSW ...
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- Doc ID 018980 Rev 1 STODD03 Power switch status Open Open Open Close Step-up output status OFF OFF OFF ON ...
Page 7
... R1 kΩ 1. The components listed above refer to a typical applications circuit. Operation of the STODD03 is not limited to the choice of these external components different solution is used recommended to validate the suitability of the external components by thoroughly testing the application on a PCB evaluation board. ...
Page 8
... V 2 EN1 2.6 0.75 1.2 1 1.2 0 500 - ° ° 500 mA -10 10 =100mA 500 1.3 STODD03 = 9 V, OUT1 Unit µA V mΩ µA A MHz % % V µ OUT % V OUT % V OUT µs A ...
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 frequency S %V /ΔV Reference line regulation OUT2 IN D Maximum duty cycle ...
Page 10
... Thermal shutdown SHDN T Thermal shutdown hyst. HYS > OVP, the device stops switching. OUT1 2. Guaranteed by design, but not tested in production 90% of nominal value OUT 10/16 Test conditions (2) (2) Doc ID 018980 Rev 1 STODD03 Min. Typ. Max. Unit 130 150 °C 15 °C ...
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 trademark. Table 9. QFN16 ( mm) mechanical data Dim ...
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 ID 018980 Rev 1 Package mechanical data inch. Typ. Max. 12.992 0.519 3.976 0.567 0.171 0.171 0.043 ...
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
... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 16/16 Please Read Carefully: © 2011 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 018980 Rev 1 STODD03 ...