ZHCSH29B April 2017 – December 2018 LP87524B-Q1 , LP87524J-Q1 , LP87524P-Q1
PRODUCTION DATA.
The LP87524B/J/P-Q1 is a high-efficiency, high-performance power supply device with four step-down DC-DC converter cores for automotive applications. Table 1 lists the output characteristics of the regulators.
| SUPPLY | OUTPUT | ||
|---|---|---|---|
| VOUT RANGE (V) | RESOLUTION (mV) | IMAX MAXIMUM OUTPUT CURRENT (A) | |
| Buck0 | 0.6 to 3.36 (VIN = 2.8 V - 4 V)
1.0 to 3.36 (VIN = 2.8 V - 5.5 V) |
10 (0.6 V to 0.73 V)
5 (0.73 V to 1.4 V) 20 (1.4 V to 3.36 V) |
10 A total |
| Buck1 | 0.6 to 3.36 (VIN = 2.8 V - 4 V)
1.0 to 3.36 (VIN = 2.8 V - 5.5 V) |
10 (0.6 V to 0.73 V)
5 (0.73 V to 1.4 V) 20 (1.4 V to 3.36 V) |
|
| Buck2 | 0.6 to 3.36 (VIN = 2.8 V - 4 V)
1.0 to 3.36 (VIN = 2.8 V - 5.5 V) |
10 (0.6 V to 0.73 V)
5 (0.73 V to 1.4 V) 20 (1.4 V to 3.36 V) |
|
| Buck3 | 0.6 to 3.36 (VIN = 2.8 V - 4 V)
1.0 to 3.36 (VIN = 2.8 V - 5.5 V) |
10 (0.6 V to 0.73 V)
5 (0.73 V to 1.4 V) 20 (1.4 V to 3.36 V) |
|
| LP87524B-Q1 default settings: | VOUT (V) | IMAX MAXIMUM OUTPUT CURRENT (A) | AWR / IWR Rail |
| Buck0 | 3.3 V | 1.5 A | IO |
| Buck1 | 1.2 V | 1.5 A | Digital |
| Buck2 | 1.8 V | 4 A | RF, with external LDO |
| Buck3 | 2.3 V | 2.5 A | RF, with external LDO |
| LP87524J-Q1 default settings: | VOUT (V) | IMAX MAXIMUM OUTPUT CURRENT (A) | AWR / IWR Rail |
| Buck0 | 3.3 V | 1.5 A | IO |
| Buck1 | 1.2 V | 1.5 A | Digital |
| Buck2 | 1 V | 4 A | RF, with ferrite filter |
| Buck3 | 1.8 V | 2.5 A | RF, with ferrite filter |
| LP87524P-Q1 default settings: | VOUT (V) | IMAX MAXIMUM OUTPUT CURRENT (A) | AWR / IWR Rail |
| Buck0 | 1 V | 3 A | RF, with ferrite filter |
| Buck1 | 1.2 V | 1.5 A | Digital |
| Buck2 | 1 V | 3 A | RF, with ferrite filter |
| Buck3 | 1.8 V | 2.5 A | RF, with ferrite filter |
The LP87524B/J/P-Q1 also supports switching clock synchronization to an external clock. The nominal frequency of the external clock can be from 1 MHz to 24 MHz with 1-MHz steps.
Additional features include:
Three enable signals can be multiplexed to general purpose I/O (GPIO) signals. The direction and output type (open-drain or push-pull) are programmable for the GPIOs.