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LP87702 Datasheet(PDF) 51 Page - Texas Instruments

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Part # LP87702
Description  LP87702-Q1 Dual Buck Converter and 5-V Boost With Diagnostic Functions
PDF  99 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP87702 Datasheet(HTML) 51 Page - Texas Instruments

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Table 8-18. BUCK1_VOUT Register Field Descriptions
Bit
Field
Type
Reset
Description
7-0
BUCK1_VSET
R/W
0h
Output voltage of BUCK1 converter
0x00 ... 0x13, Reserved, DO NOT USE
0.7 V – 0.73 V, 10 mV steps
0x14 – 0.7 V
...
0x17 – 0.73 V
0.73 V – 1.4 V, 5 mV steps
0x18 – 0.735 V
...
0x9D – 1.4 V
1.4 V – 3.36 V, 20 mV steps
0x9E – 1.42 V
...
0xFF – 3.36 V
(Default from OTP memory)
8.6.1.1.9 BOOST_CTRL Register (Offset = 8h) [reset = 8h]
BOOST_CTRL is shown in Figure 8-27 and described in Table 8-19.
Return to Table 8-9.
Figure 8-27. BOOST_CTRL Register
7
6
5
4
3
2
1
0
BOOST_VSET
RESERVED
RESERVED
BOOST_RDIS_
EN
BOOST_EN_PIN_CTRL
BOOST_EN
R/W-0h
R/W-0h
R/W-1h
R/W-1h
R/W-0h
R/W-0h
Table 8-19. BOOST_CTRL Register Field Descriptions
Bit
Field
Type
Reset
Description
7-6
BOOST_VSET
R/W
0h
Output voltage of Boost:
0x0 – 4.9 V
0x1 – 5.0 V
0x2 – 5.1 V
0x3 – 5.2 V
(Default from OTP memory)
5
RESERVED
R/W
0h
4
RESERVED
R/W
1h
3
BOOST_RDIS_EN
R/W
1h
Enable output discharge resistor when BOOST is disabled:
0 – Discharge resistor disabled
1 – Discharge resistor enabled.
2-1
BOOST_EN_PIN_CTRL
R/W
0h
Enable or disable control for Boost:
0x0 – only BOOST_EN bit controls Boost
0x1 – BOOST_EN bit AND EN1 pin control Boost
0x2 – BOOST_EN bit AND EN2 pin control Boost
0x3 – BOOST_EN bit AND EN3 pin control Boost
(Default from OTP memory)
0
BOOST_EN
R/W
0h
Enable Boost converter:
0 – Boost converter is disabled
1 – Boost converter is enabled.
(Default from OTP memory)
8.6.1.1.10 BUCK0_DELAY Register (Offset = 9h) [reset = 0h]
BUCK0_DELAY is shown in Figure 8-28 and described in Table 8-20.
Return to Table 8-9.
www.ti.com
LP87702-Q1
SNVSAL1C – DECEMBER 2017 – REVISED JUNE 2021
Copyright © 2021 Texas Instruments Incorporated
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