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RTKA211450DE0000BU
The RTKA211450DE0000BU board evaluates the
RAA211450
(QFN version), a DC/DC synchronous
step-down regulator with programmable switching
frequency.
The RAA211450 supports a wide input voltage range
(from 4.5V to 42V) and adjustable output voltage. It
delivers up to a continuous 3A output current with
premium load regulation and line regulation
performance.
V
IN
Up to 42V
C
IN
R16UZ0041EU0101 Rev.1.01
Oct 7, 2022
VIN
R
IN1
EN
R
IN2
RAA211450
PGND
FS
R
FS
AGND
Figure 1. Simplified Circuit
Features
▪ Simple and flexible design
▪ 4.5V to 42V V
▪ Convenient power conversion
Specifications
The following are the design specifications for the
RTKA211450DE0000BU:
▪ Input voltage (V
▪ Output voltage (V
▪ Maximum output current: 5A
BST
C
BOOT
SW
L
R
FB1
FB
R
FB2
EBIAS
VCC
Evaluation Board Manual
range
IN
): 4.5V to 42V
IN
): 3.3V
OUT
V
OUT
3.3V
C
OUT
3×47µF
© 2022 Renesas Electronics
Page 1
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Summary of Contents for Renesas RTKA211450DE0000BU
- Page 1 Evaluation Board Manual RTKA211450DE0000BU Features The RTKA211450DE0000BU board evaluates the RAA211450 (QFN version), a DC/DC synchronous ▪ Simple and flexible design step-down regulator with programmable switching ▪ 4.5V to 42V V range frequency. ▪ Convenient power conversion The RAA211450 supports a wide input voltage range (from 4.5V to 42V) and adjustable output voltage.
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Page 2: Table Of Contents
RTKA211450DE0000BU Evaluation Board Manual Contents Functional Description ..............3 Operational Characteristics . -
Page 3: Functional Description
The RAA211450 (QFN version) is an easy-to-use synchronous Buck switching regulator with integrated 70mΩ (high-side) and 30mΩ (low-side) MOSFETs. The RTKA211450DE0000BU board evaluates the operations of RAA211450 (QFN version). The board allows you to evaluate the performance of the part with different application circuits, and it provides a reference for the board layout. -
Page 4: Board Design
RTKA211450DE0000BU Evaluation Board Manual Board Design Figure 3. RTKA211450DE0000BU Evaluation Board (Top) Layout Guidelines For detailed layout guidelines reference the Layout Guidelines section in the RAA211450 Datasheet. R16UZ0041EU0101 Rev.1.01 Page 4 Oct 7, 2022... -
Page 5: Schematic Diagram
RTKA211450DE0000BU Evaluation Board Manual Schematic Diagram UNNAMED_1_SMCAP_I23_A UNNAMED_1_RAA211450_I49_9 Figure 4. RTKA211450DE0000BU Schematic R16UZ0041EU0101 Rev.1.01 Page 5 Oct 7, 2022... -
Page 6: Bill Of Materials
RTKA211450DE0000BU Evaluation Board Manual Bill of Materials Ref Des Description Manufacturer Part Number C8, C9, CAP, SMD, 1210, 47µF, 10V, 10%, X7R, ROHS Murata GRM32ER71A476KE15L CAP, SMD, 0603, 1.0µF, 16V, 10%, X7R, ROHS C1608X7R1C105K CAP, SMD, 0603, 0.1µF, 16V, 10%, X7R, ROHS... -
Page 7: Board Layout
RTKA211450DE0000BU Evaluation Board Manual Board Layout Figure 5. Top Layer Figure 6. Second Layer R16UZ0041EU0101 Rev.1.01 Page 7 Oct 7, 2022... - Page 8 RTKA211450DE0000BU Evaluation Board Manual Figure 7. Third Layer Figure 8. Bottom Layer R16UZ0041EU0101 Rev.1.01 Page 8 Oct 7, 2022...
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Page 9: Typical Performance Graphs
RTKA211450DE0000BU Evaluation Board Manual Typical Performance Graphs = 24V, V = 3.3V, T = +25°C, unless otherwise noted. 3.288 5Vin 12Vin 24Vin 42Vin 3.287 3.286 3.285 5Vin 12Vin 3.284 24Vin 42Vin 3.283 Output Current (A) Output Current (A) Figure 10. Load Regulation Figure 9. -
Page 10: Ordering Information
RTKA211450DE0000BU Evaluation Board Manual = 24V, V = 3.3V, T = +25°C, unless otherwise noted. (Cont.) 50mV/Div 2A/Div SW 5V/Div 1V/Div Load 1A/Div 1V/Div 1A/Div SW 20V/Div 200µs/Div 200µs/Div Figure 15. Load Ramp from 50mA to 2.5A Figure 16. OCP by Short V... - Page 11 Renesas' products are provided only subject to Renesas' Terms and Conditions of Sale or other applicable terms agreed to in writing. No use of any Renesas resources expands or otherwise alters any applicable warranties or warranty disclaimers for these products.
- Page 12 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Renesas Electronics RTKA211450DE0000BU...