Datasheet

R4
C1
C3
L
VIN
EN
ILIM
GND
VOUT
FB
PG
R3
C2
V
IN
R2
L1
R1
C4
V
OUT
U1
Power Good
Output
TPS61251
SLVSAF7 –SEPTEMBER 2010 www.ti.com
PARAMETER MEASUREMENT INFORMATION
Table 1. List of Components
REFERENCE DESCRIPTION MANUFACTURER
U1 TPS61251 Texas Instruments
L1 1.0 mH, 2.1 A, 27mΩ, 2.8 mm x 2.8 DEM2815C, TOKO
mm x 1.5 mm
C1 1 x 4.7 mF, 10 V, 0805, X7R ceramic GRM21BR71A475KA73, Murata
C2 1 x 1000 pF, 50 V, 0603, COG GRM1885C1H102JA01B, Murata
ceramic
C3 1 × 4.7 mF, 10 V, 0805, X7R ceramic GRM21BR71A475KA73, Murata
C4 20 x 100 uF, 6.3 V, 1206, X5R GRM31CR60J107ME39B, Murata
R1 Depending on the output voltage of TPS61252, 1% (all waveform measurements with 5.5 V output voltage uses 1000
kΩ)
R2 Depending on the output voltage of TPS61252, 1% (all waveform measurements with 5 V output voltage uses 280 kΩ)
R3 Depending on the input current limit of TPS61252, 1%
R4 1 MΩ, 1% any
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Product Folder Link(s): TPS61251