TPS7A1633DGNT - 60V 100mA LDO w/ Enable & PG | Texas Instruments
MPN: TPS7A1633DGNT ✓ Hoạt độngTPS7A1633DGNT Tóm tắt
An LDO (Low-Dropout) linear regulator is a type of voltage regulator that maintains a stable output voltage even when the input voltage is very close to the output voltage. LDOs belong to the linear regulator family, which is a sub-category of voltage regulators within power management ICs. Unlike switching regulators, LDOs have no switching noise, making them ideal for noise-sensitive analog and RF rails, but they dissipate (VIN − VOUT) × IOUT as heat. The TPS7A16 family extends the LDO hypernym into the wide-input, ultra-low-IQ segment where switching regulators become impractical.
Key features include 60 mV typical dropout at 20 mA, 2% output accuracy, and an integrated open-drain active-high power-good (PG) output with user-programmable delay. The CMOS-compatible enable pin supports sub-µA shutdown, while the PowerPAD EP reduces θJA to enable continuous 100 mA output without external heatsinking at moderate VIN. The device is targeted at always-on microcontroller supply rails in industrial sensors, e-meters, and automotive body modules.
The TPS7A16 uses a PNP-pass architecture with a precision bandgap reference and internal charge-pump drive. Its 60 V rating supports 24 V and 48 V industrial buses plus automotive load-dump transients (with external TVS). The 5 µA IQ makes it ideal for battery-powered applications where standby time dominates, and the PG output allows MCU-driven sequencing without extra supervisory ICs.
Typical applications include 24 V industrial sensor rails, smart-metering data-logger supplies, battery management housekeeping rails, and automotive body-controller always-on logic. The wide VIN also suits fire/security panels and HVAC controllers. In every case the regulator sits between a noisy or high-voltage bus and a low-power MCU/analog domain.
When designing with the TPS7A1633DGNT, observe the minimum VIN-VOUT headroom for regulation at 100 mA and place the input/output ceramic capacitors close to the IC pins. Tie PG to a logic-level pull-up, and use the EN pin for sequenced power-up. The exposed pad must be soldered to a sufficient copper area for thermal performance.
Bộ thay thế dễ dàng lắp đặt cho TPS7A1633DGNT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
TPS7A1633DGNR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TPS7A1633QDGNRQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TPS7A1650DGNR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TPS7A1601DRBT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TPS7B8133DGNR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TPS7B8150DGNR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TPS7A1633DGNT Tỷ lệ tối đa & tính chất điện
| Manufacturer | Texas Instruments |
| Product Family | TPS7A16 - 60V 5uA IQ 100mA LDO |
| Cấu trúc | LDO (Low-Dropout Linear Regulator) |
| Kiểu đầu ra | Fixed (3.3 V) |
| Phạm vi điện áp đầu vào | 3 V to 60 V |
| Điện áp đầu ra | 3.3 V |
| Điện áp đầu ra (tối đa) | 100 mA |
| Điện áp mất áp | 60 mV (typical at 20 mA) |
| Quiescent Current (IQ) | 5 µA (typical) |
| Quiescent Current at Shutdown | 1 µA (typical) |
| Output Accuracy | ±2% |
| N Nap kích hoạt | Yes (CMOS-compatible, active-high) |
| Đầu ra tốt về điện năng | Yes (open-drain, active-high, programmable delay) |
| Khoảng nhiệt độ hoạt động | -40 °C to +125 °C |
| Hộp | 8-pin HVSSOP (DGN) with PowerPAD |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân TPS7A1633DGNT
| Chân 1 | VIN — Input supply voltage (3 V to 60 V) |
| Chân 2 | GND — Ground reference |
| Chân 3 | NC — Not connected (per datasheet) |
| Chân 4 | EN — Enable input (CMOS-compatible, active-high) |
| Chân 5 | PG — Power-good open-drain output (active-high, programmable delay) |
| Chân 6 | NC — Not connected (per datasheet) |
| Chân 7 | NC — Not connected (per datasheet) |
| Chân 8 | VOUT — Regulated output (fixed 3.3 V) |
| Chân EP | Thermal Pad — Exposed thermal pad (must be soldered to copper pour, tied to GND) |
Ứng dụng tiêu biểu
TPS7A1633DGNT phù hợp cho 7 Áp dụngs: 24V Industrial Sensor Rails, Smart Meter / Data-Logger Supplies, Battery Management Housekeeping Rails, Automotive Body-Controller Always-On Logic, Fire/Security Panel Backup Rails, HVAC Controller Logic Supply, Remote IoT Sensor Nodes.
24V Industrial Sensor Rails
The TPS7A1633DGNT fits 24 V industrial sensor rails because its 3 V to 60 V input range directly accepts 24 V nominal bus voltage with headroom for transients, while its 5 µA quiescent current lets the sensor remain always-on without draining the field-supply budget. The fixed 3.3 V output matches typical MCU and IO-link transceiver supply rails. Designers place a 1 µF ceramic at VIN and a 1 µF ceramic at VOUT, both within 5 mm of the IC, and use the exposed pad as a thermal pad tied to a 100 mm² copper pour.
Được đề xuất
Smart Meter / Data-Logger Supplies
The TPS7A1633DGNT is well suited for smart-meter and data-logger housekeeping rails where 5 µA IQ directly extends battery life across years of standby. The 60 V input withstands rectified mains-derived rails in capacitor-drop supplies, and the open-drain PG output can wake the host MCU only after the rail is stable. Power-rail sequencing is straightforward via the EN pin, which the MCU can drive after its internal POR completes. In typical AMR/NMR designs this LDO feeds the metrology MCU and RTC from a single 3.6 V lithium battery with optional external backup.
Được đề xuất
Battery Management Housekeeping Rails
In a battery management system (BMS), the TPS7A1633DGNT powers the low-power housekeeping MCU and isolation logic while a separate supply handles the AFE. Its 1 µA shutdown current is critical when the pack enters shipping/sleep mode, and the 60 V input rating tolerates the full pack voltage of 13-series Li-ion stacks. The PG pin can be wire-ORed with the charger's PG to gate downstream regulators. Designers should add a TVS such as SMBJ58A at VIN for automotive load-dump protection if the pack sees 12 V system transients.
Được đề xuất
Automotive Body-Controller Always-On Logic
Automotive body controllers need a regulator that is always alive even when the ignition is off, drawing microamps from the 12 V battery. The TPS7A1633DGNT and its Q1 suffix variant TPS7A1633QDGNRQ1 deliver exactly this behavior, with the Q1 part qualified to AEC-Q100 for body-electronics use. The 60 V input range handles 12 V jump-start and 24 V truck-battery environments, and the open-drain PG output drives an MCU interrupt to wake the system when the rail collapses. Place the part near the battery feed with reverse-battery and load-dump protection upstream.
Được đề xuất
Fire/Security Panel Backup Rails
Fire and security panels must retain functionality across brownouts and battery-backed standby. The TPS7A1633DGNT's wide 3 V to 60 V input accepts the rectified 24 V backup-rail voltage while its 5 µA IQ is negligible against the panel's standby budget. The PG output gives the supervisory MCU deterministic status of the regulated 3.3 V rail before enabling downstream loads. The HVSSOP-8 footprint also helps designers fit the regulator alongside multi-rail backup converters in a compact enclosure.
Được đề xuất
HVAC Controller Logic Supply
In HVAC controllers, the TPS7A1633DGNT supplies the always-on thermostat logic from a 24 VAC rectified rail or a 48 V low-voltage DC bus. Its 60 V input rating tolerates rectified 24 VAC peaks (≈34 V) plus margin, and the 5 µA IQ ensures the wall-transformer budget is not consumed during the long standby hours between user interactions. The EN pin is typically tied high through a 100 kΩ resistor for default-on operation, while PG can interrupt the Wi-Fi/BLE radio on partial brownouts. Designers should add Y-cap-resistor discharge protection upstream of the LDO.
Được đề xuất
Remote IoT Sensor Nodes
Battery-powered IoT sensor nodes spend most of their life in deep sleep, where the LDO's quiescent current directly determines the field-replacement interval. The TPS7A1633DGNT's 1 µA shutdown current and 5 µA IQ preserve the lithium primary cell for years, while the 60 V input range tolerates the open-circuit voltage of small solar panels. The PG output can gate the radio's transmit current until the LDO is stable, preventing brown-out resets. Place the LDO close to the battery feed with input TVS protection against ESD and reverse polarity.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TPS7A1633DGNT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TPS7A1633DGNR | TPS7A1633QDGNRQ1 | TPS7A1650DGNR | TPS7A1601DRBT | TPS7B8133DGNR | TPS7B8150DGNR |
|---|---|---|---|---|---|---|---|
| Package | HVSSOP-8 (DGN) PowerPAD | HVSSOP-8 (DGN) PowerPAD - same | HVSSOP-8 (DGN) PowerPAD - same | HVSSOP-8 (DGN) PowerPAD - same | HVSSOP-8 (DGN) PowerPAD - same | HVSSOP-8 (DGN) PowerPAD - same | HVSSOP-8 (DGN) PowerPAD - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Voltage (VOUT) | 3.3 V (fixed) | 3.3 V (fixed) | 3.3 V (fixed) | 5.0 V (fixed) | Adjustable 0.9-5.0 V | 3.3 V (fixed) | 5.0 V (fixed) |
| Input Voltage Range (VIN) | 3 V to 60 V | 3 V to 60 V | 3 V to 60 V | 3 V to 60 V | 3 V to 60 V | Up to 40 V | Up to 5 V |
| Output Current (IOUT max) | 100 mA | 100 mA | 100 mA | 100 mA | 100 mA | 150 mA | 1.5 A |
| Enable Pin / Power-Good | EN + PG | EN + PG | EN + PG | EN + PG | EN + PG | EN only | EN only |
| Automotive Grade (AEC-Q100) | No (industrial) | No (industrial) | Yes (AEC-Q100) | No (industrial) | No (industrial) | No (industrial) | No (industrial) |
Bảo phân biệt quan trọng
- 60 V wide-VIN tolerance in a 100 mA LDO (vsTPS7B8133DGNR)
- 5 µA IQ with active-high enable and power-good (vsTPS7B8150DGNR)
- Pin-compatible automotive-qualified variant available (vsTPS7A1633DGNT vs all cross-brand wide-VIN LDOs)
Ghi chú thiết kế
Estimated: At VIN=24 V, VOUT=3.3 V, and 100 mA load, the TPS7A1633DGNT dissipates (24-3.3) × 0.1 ≈ 2.07 W. The HVSSOP-8 (DGN) PowerPAD has θJA in the 40-50 °C/W range with the EP soldered to a 100 mm² copper pour on a 1 oz 4-layer board, giving a junction-to-ambient rise of roughly 80-100 °C above ambient. Without the EP properly soldered, θJA rises sharply and the part will overheat in 24 V applications. Always solder the exposed pad to a continuous copper pour on the top layer (and via-stitched to inner layers) for production designs.
Place a 1 µF X7R ceramic capacitor on VIN (within 5 mm of the pin) and a 1 µF X7R ceramic on VOUT (within 5 mm of the pin). Use 0402 or 0603 sizes to minimize loop area. Add a 0.1 µF high-frequency bypass in parallel if the upstream source is a switching pre-regulator. Tie PG to a logic-level pull-up resistor (typically 100 kΩ to 1 MΩ to VOUT or to the MCU's VCC) and place the PG-delay capacitor (typically 10-100 nF) close to the PG pin. Route EN away from noisy switching traces to avoid false enables during transient spikes.
Do not assume the TPS7A1633DGNT survives automotive load-dump without external protection. Add an SMBJ58A or similar TVS at VIN, plus a reverse-battery P-FET or Schottky diode, for 12 V/24 V automotive use. Do not float EN if you want default-on operation - the EN pin must be tied high through a resistor (10-100 kΩ), not left floating, otherwise the part may intermittently enable from leakage. Avoid using electrolytic output capacitors with ESR below the LDO's minimum ESR requirement; X7R ceramics are recommended. Finally, ensure VIN does not exceed 60 V even transiently, or the device will enter permanent overvoltage lockout.
Keep the input capacitor, output capacitor, and exposed pad on the same top-layer copper with via stitching around the EP for thermal spreading. Avoid routing high-current load return paths under the LDO to prevent ground-bounce coupling into the reference. For 24 V-to-3.3 V designs where the LDO dissipates >1 W, dedicate a top-layer copper island to the EP and stitch it to inner ground planes with at least 4 thermal vias. Minimize the trace length from PG to its pull-up resistor to avoid false PG asserts during fast VIN transients.
Thông tin tuân thủ
Standard industrial-grade part; for AEC-Q100 qualification choose the Q1 suffix variant TPS7A1633QDGNRQ1.
