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This user's guide describes the characteristics, operation, and use of the TPS780xxEVM-301 evaluation
module (EVM). This EVM demonstrates the Texas Instruments TPS780330220 ultra low-power, low
dropout (LDO) regulator with pin-selectable, dual-output voltage levels. The TPS780330220 supplies up to
150 mA of output current at a pin programmable output voltage of 3.3 V (V
from a 2.2 V to 5.5 V input source. See the TPS780330220 data sheet (SBVS083) for definitive device
specifications. This EVM user's guide includes setup instructions, schematic diagram, bill of materials
(BOM), and PCB layout drawings.
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1
Introduction
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2
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3
4
5
5.1
5.2
5.3
Bill of Materials
1
Startup from Enable
2
Load Transient, V
3
Low to High Output Transient (VOUT = 2.2 V to 3.3 V, R
4
High to Low Output Transient (VOUT = 3.3 V to 2.2 V, R
5
Top Assembly Layer
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6
Top Layer
7
Bottom Layer
8
1
TPS780xxEVM-301 Jumpers and Connections
2
1
Introduction
The TPS780xxEVM-301 evaluation module (EVM) assists designers in evaluating the operation and
performance of the TPS780330220 low dropout regulator (LDO). This LDO provides up to 150 mA of
output current at a pin-programmable output while maintaining ultra-low quiescent current (I
The board features the small 2 mm × 2 mm six-lead SON package (DRV) and the TSOT23-5 (DDC)
package for small solution size.
Related Documentation from Texas Instruments
TPS780xx, Ultra Low-Power, 150mA Low Dropout Regulator, IQ 500nA with Pin-Selectable, Dual Output
Voltage Levels, data sheet (SBVS083)
SLVU235 - March 2008
Submit Documentation Feedback
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= 3.6 V, VOUT = 2.5 V, IOUT = 100 mA to 150 mA returning to 100 mA
I
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TPS780xxEVM-301
Contents
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List of Figures
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= 22Ω)
LOAD
................................................
= 22Ω)
LOAD
List of Tables
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User's Guide
SLVU235 - March 2008
= low) or 2.2 V (V
=high)
SET
SET
.....................
=500 nA).
Q
TPS780xxEVM-301
1
2
2
3
5
5
8
9
3
3
4
4
5
6
7
8
2
9
1

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Summary of Contents for Texas Instruments SLVU235

  • Page 1: Table Of Contents

    TPS780xxEVM-301 This user’s guide describes the characteristics, operation, and use of the TPS780xxEVM-301 evaluation module (EVM). This EVM demonstrates the Texas Instruments TPS780330220 ultra low-power, low dropout (LDO) regulator with pin-selectable, dual-output voltage levels. The TPS780330220 supplies up to 150 mA of output current at a pin programmable output voltage of 3.3 V (V = low) or 2.2 V (V...
  • Page 2: Setup

    3. Connect the desired load between the Vout (J3/J7) and GND (J4/J8). The TPS780xxx supplies up to 150 mA of output current. 4. Configure jumpers JP1/JP3 and JP2/JP4 according to Table 1 and as required for your application. TPS780xxEVM-301 SLVU235 – March 2008 Submit Documentation Feedback...
  • Page 3: Test Results

    TPS780xxxEVM-301 printed circuit board. Figure 1. Startup from Enable Figure 2. Load Transient, V = 3.6 V, VOUT = 2.5 V, IOUT = 100 mA to 150 mA returning to 100 mA SLVU235 – March 2008 TPS780xxEVM-301 Submit Documentation Feedback...
  • Page 4 Figure 3. Low to High Output Transient (VOUT = 2.2 V to 3.3 V, R = 22Ω) LOAD Figure 4. High to Low Output Transient (VOUT = 3.3 V to 2.2 V, R = 22Ω) LOAD TPS780xxEVM-301 SLVU235 – March 2008 Submit Documentation Feedback...
  • Page 5: Board Layout, Schematic, And Bill Of Materials

    IC. Use a common ground node for power ground to minimize the effects of ground noise. Figure 5 through Figure 7 shows the board layout for the TPS780xxEVM-301 PCB. Figure 5. Top Assembly Layer SLVU235 – March 2008 TPS780xxEVM-301 Submit Documentation Feedback...
  • Page 6 Board Layout, Schematic, and Bill of Materials Figure 6. Top Layer TPS780xxEVM-301 SLVU235 – March 2008 Submit Documentation Feedback...
  • Page 7 Board Layout, Schematic, and Bill of Materials Figure 7. Bottom Layer SLVU235 – March 2008 TPS780xxEVM-301 Submit Documentation Feedback...
  • Page 8: Schematic

    Board Layout, Schematic, and Bill of Materials Schematic Figure 8. TPS780xxEVM-301 Schematic TPS780xxEVM-301 SLVU235 – March 2008 Submit Documentation Feedback...
  • Page 9: Tps780Xxevm-301 Schematic

    TSOT23-5 TPS780330220DDC Iq 500 nA With Pin-Selectable IC, Dual OutPut LDO TPS780330220DRV Linear Regulator TSOT23-5 TPS780330220DRV Iq 500 nA With Pin-Selectable – PCB, 2 In x 2 In x 0.0062 In HPA301 SLVU235 – March 2008 TPS780xxEVM-301 Submit Documentation Feedback...
  • Page 10 EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
  • Page 11 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
  • Page 12 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments TPS780XXEVM-301...

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