Datasheet

VIN
EN
GND
FB
V
IN
V
OUT
SS
C
in1
C
O1
R
fbt
R
comp
C
comp
R
fbb
C
SS
U1
VOUT
LMZ10505EXT
C
O2
C
O3
1
2
3
4, EP
5
6, 7
Optional
+
C
in2
Optional
LMZ10505EXT
SNVS669G –JUNE 2010–REVISED OCTOBER 2013 www.ti.com
Figure 20.
Table 5. Bill of Materials, V
IN
= 3.3V to 5V, V
OUT
= 2.5V, I
OUT (MAX)
= 5A,
Optimized for Low Input and Output Ripple Voltage and Fast Transient Response
Designator Description Case Size Manufacturer Manufacturer P/N Quantity
U1 SIMPLE SWITCHER® PFM-7 Texas Instruments LMZ10505EXTTZ 1
C
in1
22 µF, X5R, 10V 1210 AVX 1210ZD226MAT 2
C
in2
220 µF, 10V, AL-Elec E Panasonic EEE1AA221AP 1
(1)
C
O1
4.7 µF, X5R, 10V 0805 AVX 0805ZD475MAT 1
(1)
C
O2
22 µF, X5R, 6.3V 1206 AVX 12066D226MAT 1
(1)
C
O3
100 µF, X5R, 6.3V 1812 AVX 18126D107MAT 1
R
fbt
75 kΩ 0402 Vishay Dale CRCW040275K0FKED 1
R
fbb
34.8 kΩ 0402 Vishay Dale CRCW040234K8FKED 1
R
comp
1.0 kΩ 0402 Vishay Dale CRCW04021K00FKED 1
C
comp
100 pF, ±5%, C0G, 50V 0402 Murata GRM1555C1H101JZ01 1
C
SS
10 nF, ±10%, X7R, 16V 0402 Murata GRM155R71C103KA01 1
(1) Optional components, include for low input and output voltage ripple.
Table 6. Output Voltage Setting (R
fbt
= 75 kΩ)
V
OUT
R
fbb
2.5 V 34.8 kΩ
1.8 V 59 kΩ
1.5 V 84.5 kΩ
1.2 V 150 kΩ
0.9 V 590 kΩ
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