ZHCSHX8D September 2017 – October 2019 TPS50601A-SP
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3
Feature Description
- 7.3.1 VIN and Power VIN Pins (VIN and PVIN)
- 7.3.2 Voltage Reference
- 7.3.3 Adjusting the Output Voltage
- 7.3.4 Safe Start-Up Into Prebiased Outputs
- 7.3.5 Error Amplifier
- 7.3.6 Slope Compensation
- 7.3.7 Enable and Adjust UVLO
- 7.3.8 Adjustable Switching Frequency and Synchronization (SYNC)
- 7.3.9 Slow Start (SS/TR)
- 7.3.10 Power Good (PWRGD)
- 7.3.11 Sequencing (SS/TR)
- 7.3.12 Output Overvoltage Protection (OVP)
- 7.3.13 Overcurrent Protection
- 7.3.14 Thermal Shutdown
- 7.3.15 Turn-On Behavior
- 7.3.16 Small Signal Model for Frequency Compensation
- 7.4 Device Functional Modes
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11器件和文檔支持
- 12機械、封裝和可訂購信息
5 Pin Configuration and Functions
Pin Functions
| PIN | I/O | DESCRIPTION | |
|---|---|---|---|
| NO. | NAME | ||
| 1 | GND | — | Return for control circuitry.(1) |
| 2 | EN | I | EN pin is internally pulled up allowing for the pin to be floated to enable the device. Adjust the input undervoltage lockout (UVLO) with two resistors. |
| 3 | RT | I/O | In internal oscillation mode, a resistor is connected between the RT pin and GND to set the switching frequency. Leaving this pin floating sets the internal switching frequency to 500 kHz. |
| 4 | SYNC | I/O | Optional 100-kHz to 1-MHz external system clock input. |
| 5 | VIN | I | Input power for the control circuitry of the switching regulator. |
| 6 | PVIN | I | Input power for the output stage of the switching regulator. |
| 7 | |||
| 8 | PGND | — | Return for low-side power MOSFET. |
| 9 | |||
| 10 | |||
| 11 | PH | O | Switch phase node. |
| 12 | |||
| 13 | |||
| 14 | |||
| 15 | |||
| 16 | REFCAP | O | Required 470-nF external capacitor for internal reference. |
| 17 | VSENSE | I | Inverting input of the gm error amplifier. |
| 18 | COMP | I/O | Error amplifier output and input to the output switch current comparator. Connect frequency compensation to this pin. |
| 19 | SS/TR | I/O | Slow-start and tracking. An external capacitor connected to this pin sets the internal voltage reference rise time. The voltage on this pin overrides the internal reference. It can be used for tracking and sequencing. |
| 20 | PWRGD | O | Power Good fault pin. Asserts low if output voltage is low due to thermal shutdown, dropout, overvoltage, or EN shutdown, or during slow start. |
(1) GND (pin 1, analog ground) must be connected to PGND external to the package. Thermal pad must be connected to a heat dissipating layer. Thermal pad is internally connected to the seal ring and GND.
Table 1. Bare Die Information
| DIE THICKNESS | BACKSIDE FINISH | BACKSIDE POTENTIAL | BOND PAD METALLIZATION COMPOSITION | BOND PAD THICKNESS |
|---|---|---|---|---|
| 15 mils | Silicon with backgrind | Ground | ALCU | 1050 nm |
Table 2. Bond Pad Coordinates in Microns
| DESCRIPTION | PAD NUMBER | X MIN | Y MIN | X MAX | Y MAX |
|---|---|---|---|---|---|
| AVSS | 1 | 938.16 | 5098.41 | 1064.16 | 5224.41 |
| AVSS | 2 | 759.06 | 5098.41 | 885.06 | 5224.41 |
| N/C | 3 | 579.96 | 5098.41 | 705.96 | 5224.41 |
| AVSS | 4 | 400.86 | 5098.41 | 526.86 | 5224.41 |
| AVSS | 5 | 221.76 | 5098.41 | 347.76 | 5224.41 |
| EN | 6 | 38.7 | 4843.98 | 164.7 | 4969.98 |
| RT | 7 | 38.7 | 4115.43 | 164.7 | 4241.43 |
| SYNC | 8 | 38.7 | 3936.33 | 164.7 | 4062.33 |
| VIN | 9 | 55.89 | 3473.865 | 181.89 | 3599.865 |
| VIN | 10 | 55.89 | 3285.765 | 181.89 | 3411.765 |
| VIN | 11 | 55.89 | 3097.665 | 181.89 | 3223.665 |
| VIN | 12 | 55.89 | 2909.565 | 181.89 | 3035.565 |
| PVIN | 13 | 360.045 | 2468.025 | 486.045 | 2594.025 |
| PVIN | 14 | 500.805 | 2468.025 | 626.805 | 2594.025 |
| PVIN | 15 | 643.905 | 2468.025 | 769.905 | 2594.025 |
| PVIN | 16 | 782.505 | 2468.025 | 908.505 | 2594.025 |
| PVIN | 17 | 360.045 | 2312.595 | 486.045 | 2438.595 |
| PVIN | 18 | 500.805 | 2312.595 | 626.805 | 2438.595 |
| PVIN | 19 | 643.905 | 2312.595 | 769.905 | 2438.595 |
| PVIN | 20 | 782.505 | 2312.595 | 908.505 | 2438.595 |
| PVIN | 21 | 360.045 | 1868.265 | 486.045 | 1994.265 |
| PVIN | 22 | 500.805 | 1868.265 | 626.805 | 1994.265 |
| PVIN | 23 | 643.905 | 1868.265 | 769.905 | 1994.265 |
| PVIN | 24 | 782.505 | 1868.265 | 908.505 | 1994.265 |
| PVIN | 25 | 360.045 | 1712.835 | 486.045 | 1838.835 |
| PVIN | 26 | 500.805 | 1712.835 | 626.805 | 1838.835 |
| PVIN | 27 | 643.905 | 1712.835 | 769.905 | 1838.835 |
| PVIN | 28 | 782.505 | 1712.835 | 908.505 | 1838.835 |
| PGND | 29 | 360 | 1004.625 | 486 | 1130.625 |
| PGND | 30 | 498.6 | 1004.625 | 624.6 | 1130.625 |
| PGND | 31 | 637.2 | 1004.625 | 763.2 | 1130.625 |
| PGND | 32 | 775.8 | 1004.625 | 901.8 | 1130.625 |
| PGND | 33 | 360 | 863.955 | 486 | 989.955 |
| PGND | 34 | 498.6 | 863.955 | 624.6 | 989.955 |
| PGND | 35 | 637.2 | 863.955 | 763.2 | 989.955 |
| PGND | 36 | 775.8 | 863.955 | 901.8 | 989.955 |
| PGND | 37 | 360 | 384.525 | 486 | 510.525 |
| PGND | 38 | 360 | 243.855 | 486 | 369.855 |
| PGND | 39 | 503.1 | 243.855 | 629.1 | 369.855 |
| PGND | 40 | 503.1 | 384.525 | 629.1 | 510.525 |
| PGND | 41 | 641.7 | 243.855 | 767.7 | 369.855 |
| PGND | 42 | 641.7 | 384.525 | 767.7 | 510.525 |
| PGND | 43 | 775.8 | 243.855 | 901.8 | 369.855 |
| PGND | 44 | 775.8 | 384.525 | 901.8 | 510.525 |
| PH | 45 | 1239.66 | 97.425 | 1365.66 | 223.425 |
| PH | 46 | 1374.66 | 529.965 | 1500.66 | 655.965 |
| PH | 47 | 1378.26 | 97.425 | 1504.26 | 223.425 |
| PH | 48 | 1516.86 | 97.425 | 1642.86 | 223.425 |
| PH | 49 | 1657.26 | 97.425 | 1783.26 | 223.425 |
| PH | 50 | 1790.46 | 529.965 | 1916.46 | 655.965 |
| PH | 51 | 1651.86 | 529.965 | 1777.86 | 655.965 |
| PH | 52 | 1513.26 | 529.965 | 1639.26 | 655.965 |
| PH | 53 | 1790.46 | 718.515 | 1916.46 | 844.515 |
| PH | 54 | 1651.86 | 718.515 | 1777.86 | 844.515 |
| PH | 55 | 1513.26 | 718.515 | 1639.26 | 844.515 |
| PH | 56 | 1374.66 | 718.515 | 1500.66 | 844.515 |
| PH | 57 | 1790.46 | 1150.065 | 1916.46 | 1276.065 |
| PH | 58 | 1651.86 | 1150.065 | 1777.86 | 1276.065 |
| PH | 59 | 1513.26 | 1150.065 | 1639.26 | 1276.065 |
| PH | 60 | 1374.66 | 1150.065 | 1500.66 | 1276.065 |
| PH | 61 | 1795.365 | 1565.1 | 1921.365 | 1691.1 |
| PH | 62 | 1655.865 | 1565.1 | 1781.865 | 1691.1 |
| PH | 63 | 1515.465 | 1565.1 | 1641.465 | 1691.1 |
| PH | 64 | 1376.865 | 1565.1 | 1502.865 | 1691.1 |
| PH | 65 | 1795.365 | 2016 | 1921.365 | 2142 |
| PH | 66 | 1655.865 | 2016 | 1781.865 | 2142 |
| PH | 67 | 1515.465 | 2016 | 1641.465 | 2142 |
| PH | 68 | 1376.865 | 2016 | 1502.865 | 2142 |
| PH | 69 | 1795.365 | 2164.86 | 1921.365 | 2290.86 |
| PH | 70 | 1655.865 | 2164.86 | 1781.865 | 2290.86 |
| PH | 71 | 1515.465 | 2164.86 | 1641.465 | 2290.86 |
| PH | 72 | 1376.865 | 2164.86 | 1502.865 | 2290.86 |
| PH | 73 | 1795.365 | 2615.76 | 1921.365 | 2741.76 |
| PH | 74 | 1655.865 | 2615.76 | 1781.865 | 2741.76 |
| PH | 75 | 1515.465 | 2615.76 | 1641.465 | 2741.76 |
| PH | 76 | 1376.865 | 2615.76 | 1502.865 | 2741.76 |
| REFCAP_NU | 77 | 1933.245 | 3572.46 | 2059.245 | 3698.46 |
| VSENSE | 78 | 1933.245 | 3770.415 | 2059.245 | 3896.415 |
| COMP | 79 | 1933.245 | 3949.515 | 2059.245 | 4075.515 |
| SS | 80 | 1933.2 | 4149.135 | 2059.2 | 4275.135 |
| PWRGD | 81 | 1933.2 | 4292.325 | 2059.2 | 4418.325 |