Datasheet

S0211-01
1
2
3
4
16
15
14
13
ILIM
VDD
BOOST
HDRV
KFF
RT
LVBP
PGD
TPS40077PWP
5
6
7
8
12
11
10
9
SW
DBP
LDRV
PGND
SGND
SS
FB
COMP
+
+
–
PWP
+ +
–
Note:Resistoracrosssoftstartcapacitor.
V
1.2V
10 A
OUT
C18
0.1 Fm
C12
22 Fm
C8
0.1 Fm
C7
10pF
C100.1 Fm
C91 Fm
R9
2kW
R8
226 W
R3
12.1kW
R5
10kW
R2
90.1kW
R6
47kW
V
5V
DD
R78.66kW
R4330kW
C14
22 Fm
C17
470 Fm
C16
470 Fm
C15
47 Fm
C6
4.7nF
C5
5.6nF
C4470pF
C322nF
C20.1 Fm
C13
4.7nF
L1
Pulse
PG0077.202
2 Hm
D1
BAT54
Q1
Si7860DP
Q2
Si7860DP
REFERENCES
Related Parts
TPS40077
SLUS714D – JANUARY 2007 – REVISED APRIL 2009 ..................................................................................................................................................... www.ti.com
See the Boost Diode section.
Figure 36. 500 kHz, 5 V to 1.2 V With Improved High-Side Gate Drive
The following parts are similar to the TPS40077 and may be of interest:
• TPS40190 Low Pin Count Synchronous Buck Controller (SLUS658 )
• TPS40100 Midrange Input Synchronous Buck Controller With Advanced Sequencing and Output Margining
(SLUS601 )
• TPS40075 Midrange Input Synchronous Buck Controller With Voltage Feed-Forward (SLUS676 )
• TPS40057 Wide-Input Synchronous Buck Controller (SLUS593 )
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Product Folder Link(s) :TPS40077