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TPS62650 Datasheet(PDF) 29 Page - Texas Instruments

Part # TPS62650
Description  800-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER WITH I2CTM COMPATIBLE INTERFACE IN CHIP SCALE PACKAGING
PDF  39 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS62650 Datasheet(HTML) 29 Page - Texas Instruments

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TPS62650
TPS62651
www.ti.com
SLVS808B
– AUGUST 2009 – REVISED JULY 2011
CONTROL1 REGISTER DESCRIPTION
Memory location: 0x02
Description
RESERVED
RESERVED
FREE
FREE
MODE_CTRL[1:0]
MODE1
MODE0
Bits
D7
D6
D5
D4
D3
D2
D1
D0
Memory type
R
R
R/W
R/W
R/W
R/W
R/W
R/W
Default value
0
0
0
0
0
0
0
0
Bit
Description
MODE_CTRL[1:0]
Mode control bits.(1)
00: Operation follows MODE0, MODE1.
01: PFM/PWM operation independent of VSEL signal.
10: Forced PWM operation independent of VSEL signal.
11: PFM/PWM operation independent of VSEL signal.
MODE1
VSEL high (roof voltage) operating mode selection bit.
0: Forced PWM.
1: PFM/PWM automatic transition.
MODE0
VSEL low (floor voltage) operating mode selection bit.
0,1: PFM/PWM automatic transition (no effect).
(1)
See the ordering information table to verify the validity of this option.
CONTROL2 REGISTER DESCRIPTION
Memory location: 0x03
Description
FREE
OUTPUT_DISCHARGE
PWROK
FREE
FREE
DEFSLEW
Bits
D7
D6
D5
D4
D3
D2
D1
D0
Memory type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default value
0
1
0
0
0
1
1
1
Bit
Description
OUTPUT_
Output capacitor auto-discharge control bit.
DISCHARGE
0: The output capacitor is not actively discharged when the converter is disabled.
1: The output capacitor is discharged through an internal resistor when the converter is disabled.
PWROK
Power good bit.
0: The output voltage is not within its regulation limits.
1: The output voltage is in regulation.
DEFSLEW
Output voltage slew-rate control bits.
000: 0.15mV/
μs
001: 0.3mV/
μs
010: 0.6mV/
μs
011: 1.2mV/
μs
100: 2.4mV/
μs
101: 4.8mV/
μs
110: 9.6mV/
μs
111: Immediate
Copyright
© 2009–2011, Texas Instruments Incorporated
29



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