SNVSAW2B April 2017 – December 2018 LP87524B-Q1 , LP87524J-Q1 , LP87524P-Q1
PRODUCTION DATA.
Refer to the PDF data sheet for device specific package drawings
Address: 0x08
D7 | D6 | D5 | D4 | D3 | D2 | D1 | D0 |
EN_BUCK3 | EN_PIN_CTRL3 | BUCK3_EN_PIN_SELECT[1:0] | EN_ROOF_
FLOOR3 |
EN_RDIS3 | BUCK3_FPWM | Reserved |
Bits | Field | Type | Default | Description |
---|---|---|---|---|
7 | EN_BUCK3 | R/W | 1 * | Enable Buck3 regulator:
0 - Buck3 regulator is disabled 1 - Buck3 regulator is enabled |
6 | EN_PIN_CTRL3 | R/W | 1 * | Enable EN1/2/3 pin control for Buck3:
0 - Only EN_BUCK3 bit controls Buck3 1 - EN_BUCK3 bit AND ENx pin control Buck3 |
5:4 | BUCK3_EN_PIN
_SELECT[1:0] |
R/W | 0x0* | Enable EN1/2/3 pin control for Buck3:
0x0 - EN_BUCK3 bit AND EN1 pin control Buck3 0x1 - EN_BUCK3 bit AND EN2 pin control Buck3 0x2 - EN_BUCK3 bit AND EN3 pin control Buck3 0x3 - Reserved |
3 | EN_ROOF_
FLOOR3 |
R/W | 0 | Enable Roof/Floor control of EN1/2/3 pin if EN_PIN_CTRL3 = 1:
0 - Enable/Disable (1/0) control 1 - Roof/Floor (1/0) control |
2 | EN_RDIS3 | R/W | 1 | Enable output discharge resistor when Buck3 is disabled:
0 - Discharge resistor disabled 1 - Discharge resistor enabled |
1 | BUCK3_FPWM | R/W | 1 * | Forces the Buck3 regulator to operate in PWM mode:
0 - Automatic transitions between PFM and PWM modes (AUTO mode) 1 - Forced to PWM operation |
0 | Reserved | R/W | 0 |