G001
Oscilloscope Traces
5.3
Bill of Materials
Table 2. HPA726A Bill of Materials
Count
RefDes
Value
Description
Size
Part Number
MFR
-001
2
C1, C2
2.2
µ
F
Capacitor, ceramic, 6.3-V, X5R, 20%
0402
GRM155R60J225ME15D
muRata
1
C3
22
µ
F
Capacitor, ceramic, 16-V, X5R, 10%
0603
ECJ-1VB1A225K
Panasonic
0
C4
Capacitor, ceramic, 6.3-V, X5R, 20%
0603
Std
Std
7
J1, J2, J3, J4,
PEC02SAAN
Header, male 2-pin, 100-mil (2,54-mm) spacing
0.100 inch (2,54-mm)
×
2
PEC02SAAN
Sullins
J5, J6, J7
1
JP1
PEC03SAAN
Header, 3-pin, 100-mil (2,54-mm) spacing
0.100 inch (2,54-mm)
×
3
PEC02SAAN
Sullins
1
L1
2.2
µ
H
Inductor, SMT, 0.8-A, 0.23-
Ω
0805
LQM21PN2R2NGC
muRata
1
R1
10.0 k
Ω
Resistor, chip, 1/16W, 1%
0603
Std
Std
1
R2
1.00 M
Ω
Resistor, chip, 1/16W, 1%
0603
Std
Std
1
U1
TPS62730DRY
IC, step-down converter with bypass mode for low-power wireless
1,5 mm
×
1 mm
TPS62730DRY
TI
1
–
PCB, 1.7 in.
×
1.5 in. x 0.031 in. (4,32 cm
×
3,81 cm
×
0,787 mm)
HPA726
Any
1
Apply on:
Shunt, 100-mil (2,54-mm), black
0.1 in (2,54-mm)
929950-00
3M
JP1-ON
6
Oscilloscope Traces
Figure 6. CH1: Phase; CH2: Output Ripple, Vin = 3.3 V, and 21-
Ω
Load
7
SLVU455
–
April 2011
TPS62730 Stepdown Converter With Bypass Mode for Ultralow-Power Wireless
Applications
Copyright
©
2011, Texas Instruments Incorporated