Einleitung
Apple hat die M1 Pro/Max Prozessoren in den 2021 MacBook Pros vorgestellt. Wie verändern diese neuen hauseigenen SoCs den übrigen Aufbau des Logic Boards? In dieser Chip-ID-Übersicht kannst du das herausfinden!
Hut ab an unser Community-Mitglied C. Chin für diesen Beitrag!
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IC-Identifikation, Teil 1:
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Apple APL1103 M1 Pro System-on-a-Chip (SoC)
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Samsung K3LKYKY0EM-ZGCP 8 GB LPDDR5 SDRAM Speicher (16 GB total)
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Kioxia KICM225UZ0460 128 GB NAND Flash Speicher
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Apple APL1098/343S00515 Energiemanagement
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Apple 338S00600 Energiemanagement
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Kinetic Technologies MCDP2920 DisplayPort-to-HDMI Wandler
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Genesys Logic GL9755A Kartenleser Steuerung
Frag FixBot
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IC-Identifikation, Teil 2:
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Intel JHL8040R Thunderbolt 4 Retimer
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Macronix MX25U6472F 64 Mb Serieller NOR Flash Speicher
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Winbond W25Q80DVUXIE 8 Mb Serieller NOR Flash Speicher
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Renesas RAA225701C ? Synchroner Abwärtswandler
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Analog Devices LT86422 Synchroner Abwärtswandler
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Texas Instruments TPS62130B Abwärtswandler
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Texas Instruments TPS62180 6 A Abwärtswandler
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IC-Identifikation, Teil 3:
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Texas Instruments TVS2200 Überspannungsschutz
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ON Semiconductor FPF2495CUCX Lastschalter
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Texas Instruments Lastschalter (vermutlich)
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ON Semiconductor NCV8160AMX500TBG 250 mA / 5.0 V LDO Regler
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Nexperia 74AVC2T45 Dual-Bit Spannungspegel-Umsetzer/Sendeempfänger
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Texas Instruments SN74AXC1T45 Ein-Bit Bus Sendeempfänger
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Nexperia 74AUP1G07 Einzelpuffer
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IC-Identifikation, Teil 4:
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Texas Instruments LSF0102 2-Kanal Multispannungs-Pegelumsetzer
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Nexperia LSF0101 1-Bit Multispannungs-Pegelumsetzer
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Texas Instruments SN74AUP2G07 Zweifach-Puffer
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Texas Instruments SN74LVC1G07 Einfachpuffer
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Nexperia 74AUP1G17 Schmitt Trigger
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Nexperia 74AUP1G08 Einfaches UND-Gatter
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IC-Identifikation, Teil 1:
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Kioxia KICM225VF9081 128 GB NAND Flash Speicher
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USI 339S00912 Bluetooth/WLAN Modul
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NXP Semiconductor SN210V NFC Controller mit Secure Element
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Texas Instruments CD3217B12 USB Type-C Port/Power Delivery Controller
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Renesas ISL9240 Li-Ion Batterieladegerät
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Winbond W25Q80EWUXIE 8 Mb Serieller NOR Flash Speicher
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Winbond W25Q80DVUXIE 8 Mb Serieller NOR Flash Speicher
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IC-Identifikation, Teil 2:
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Renesas Leistungsphasen PWM Controller
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Cirrus Logic CS42L84A Audio Codec
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Texas Instruments SN012776B0 Audio Verstärker
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Texas Instruments TPS62130B Abwärtswandler
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Renesas RAA209100 Aufwärtswandler (vermutlich)
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Texas Instruments LP8548B1 Hintergrund LED Treiber
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Texas Instruments TUSB2E22 USB 2.0 Zweifach Repeater (vermutlich)
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IC-Identifikation, Teil 3:
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Texas Instruments INA190A3 Stromsensor-Verstärker
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Texas Instruments INA190A4 Stromsensor-Verstärker
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Maxim Integrated MAX9620 1.5 MHz Rail-to-Rail Eingang/Ausgang Operationsverstärker
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ON Semiconductor NCS333ASQ3T2G Einfach Operationsverstärker
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Dialog Semiconductor Mischsignal Array (vermutlich)
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NXP Semiconductor PCAL6416A 16-Bit I/O Erweiterungsmodul
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Analog Devices ADG1422BCPZ Dualer SPST Analogschalter
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IC-Identifikation, Teil 4:
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Texas Instruments REF3325 2,5 V Referenzspannung
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Texas Instruments TLV75801P 500 mA / . LDO Regler
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Texas Instruments TLV75533P 500 mA / 3.3 V LDO Regler
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Texas Instruments LP5907SNX-3.0 250 mA / 3.0 V LDO Regler
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ON Semiconductor NCP163BMX180TBG 250 mA / 1.8 V LDO Regler (vermutlich)
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Texas Instruments TLV70733P 200 mA / 3.3 V LDO Regler
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Texas Instruments TPS7A201825 200 mA / 1.825 V LDO Regler
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IC-Identifikation, Teil 5:
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Nexperia 74AVC4T774 4-Bit Umsetzender Sendeempfänger
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Nexperia 74AUP1T45 Umsetzender Sendeempfänger
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Texas Instruments LSF0102 2-Ch. Multi-Spannungspegelumsetzer
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Nexperia LSF0101 Ein-Bit-Multi-Spannungspegelumsetzer
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Nexperia 74AVC2T45 Zwei-Bit-Spannungspegelumsetzer
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Texas Instruments SN74AUP1T34 Ein-Bit-Spannungspegelumsetzer
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Texas Instruments SN74AXC1T45 Ein-Bit-Bus-Spannungspegelumsetzer
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IC-Identifikation, Teil 6:
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Nexperia 74AXP1T34 Puffer
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Nexperia 74AUP2G07 Zweifachpuffer
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Texas Instruments SN74LVC1G07 Einfachpuffer
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Nexperia 74AUP1G17 Schmitt Trigger
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Nexperia 74LVC2G32 Duales OR Gatter
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Texas Instruments SN74AUP1G32 Einfaches OR Gatter
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Texas Instruments TPD4S311A USB Typ-C Port Schutz
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IC-Identifikation, Sensoren:
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Bosch Sensortec BMI282 6-Axis MEMS Beschleunigungsmesser/Gyroskop
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IC-Identifikation:
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STMicroelectronics STM32L4P5QG 32-Bit ARM Cortex-M4 Microcontroller mit 1 MB Flash Speicher
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Broadcom BCM5976C1 Touchpad Regler
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Maxim Integrated MAX11390A A/D-Wandler (vermutlich)
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Monolithic Power Systems MP6519 5A H-Brücken-Stromregler
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Texas Instruments TPS3831G18 1.67V Spannungsversorgungsüberwachung
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Texas Instruments TPS22915 Lastschalter
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IC-Identifikation, Sensoren:
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Bosch Sensortec BMA282 3-Achsen Beschleunigungsmesser
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Texas Instruments TMP461 Temperatursensor
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10 Kommentare zur Anleitung
In practise, the efficiency of an LDO regulator is dependent on how much voltage it is dropping. While operating, an LDO is effectively a resistor that varies in real-time to ensure its output voltage stays stable despite changes in load current.
Power = I (current) x V (voltage)
Since an LDO is a resistive element, yes, it burns off energy as heat in this process. So an LDO dropping 18V to 5V could be very inefficient, more so when driving a higher current load as shown by the formula above. However, if an LDO is used to generate a 3.3V rail from a 5V rail, it is dropping just 1.7V, resulting in less power dissipation for the same load current.
You’re right, using an LDO for a large voltage drop is not good electrical design. But LDOs have excellent noise rejection performance, meaning they can take a noisy rail from a switching buck/boost converter with lots of transient or high-draw components on it, and create a much cleaner rail for lower-current, more sensitive devices. This is what I expect Apple’s doing.
LDOs drop the difference in voltage as heat, yes - hence the voltage difference between input and output determines the efficiency (eg a 3.0v LDO fed by 6.0v is 50% efficient).
In many cases where LDOs are used in designs the amount of lost power is negligible as the current being drawn is so small - simply not worth using a switcher for that rail. Also, LDOs typically have cleaner output so often an LDO is used to isolate an analog subsystem from noise on the main (digital) system rails.
