Datasheet

LM10506
www.ti.com SNVS729E –SEPTEMBER 2011–REVISED MARCH 2013
Registers Configurable Via The SPI Interface
Addr Reg Name Bit R/W Default Description Notes
7 — Reset default:
6 R/W Buck 3 Voltage Code[6] HL_B3=1 → 0x64 (1.2V)
5 R/W Buck 3 Voltage Code[5] HL_B3=0 → 0x3C (1.0V)
4 R/W Buck 3 Voltage Code[4]
0x00 Buck 3 Voltage See Notes
3 R/W Buck 3 Voltage Code[3] Range: 0.7V to 1.335V
2 R/W Buck 3 Voltage Code[2]
1 R/W Buck 3 Voltage Code[1]
0 R/W Buck 3 Voltage Code[0]
7 — Reset default:
6 — 0x26 (3.0V)
5 R/W Buck 1 Voltage Code[5]
4 R/W Buck 1 Voltage Code[4] Range: 1.1V to 3.6V
0x07 Buck 1 Voltage See Notes
3 R/W Buck 1 Voltage Code[3]
2 R/W Buck 1 Voltage Code[2]
1 R/W Buck 1 Voltage Code[1]
0 R/W Buck 1 Voltage Code[0]
7 — Reset default:
HL_B2=1 → 0x26 (3.0V)/
6 —
0x12 (2.0V for LM10506−A, -D)
5 R/W Buck 2 Voltage Code[5] HL_B2=0 → 0x0E (1.8V)
4 R/W Buck 2 Voltage Code[4]
0x08 Buck 2 Voltage See Notes
3 R/W Buck 2 Voltage Code[3] Range: 1.1V to 3.6V
2 R/W Buck 2 Voltage Code[2]
1 R/W Buck 2 Voltage Code[1]
0 R/W Buck 2 Voltage Code[0]
7 R/W Reset default:
6 R/W Buck 3 Voltage Code[6] HL_B3=1 → 0x53 (1.115V)
5 R/W Buck 3 Voltage Code[5] HL_B3=0 → 0x2E (0.93V)
Standby Mode
4 R/W Buck 3 Voltage Code[4]
0x09 Voltage for See Notes
3 R/W Buck 3 Voltage Code[3]
Buck 3
2 R/W Buck 3 Voltage Code[2]
1 R/W Buck 3 Voltage Code[1]
0 R/W Buck 3 Voltage Code[0]
7 R 1 BK3EN Reads Buck 3 enable status
6 —
5 —
4 R/W 0 BK1FPWM Buck 1 forced PWM mode when high
0x0A Buck Control
3 R/W 0 BK2FPWM Buck 2 forced PWM mode when high
2 R/W 0 BK3FPWM Buck 3 forced PWM mode when high
1 R/W 1 BK1EN Enables Buck 1 0-disabled, 1-enabled
0 R/W 1 BK2EN Enables Buck 2 0-disabled, 1-enabled
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