Specifications
| Attribute | Value |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6.5V |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage Dropout (Max) | 0.18V @ 200mA |
| Current - Output | 200mA |
| Current - Quiescent (Iq) | 60 µA |
| PSRR | 70dB ~ 38dB (100Hz ~ 100kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
Overview
Description
The TPS79918DDCR is a fixed-output low-dropout (LDO) regulator from TI’s TPS799 family. It provides a 1.8 V output and up to roughly 150 mA load current, making it suitable for powering low‑to‑mid‑current digital/analog circuits in mobile and embedded designs. Key features typically include a enable/shutdown input, overcurrent/short‑circuit protection, and thermal shutdown. It’s designed for low quiescent current and stable operation with ceramic output capacitors. The “DDCR” suffix denotes TI’s compact, low‑profile package option for this device. Common use cases are battery-powered devices requiring a clean, regulated 1.8 V rail with simple sequencing and protection.
Equivalent
TPS79918DDCR is a 1.8 V fixed LDO regulator. Equivalents from other vendors include:
- Analog Devices ADP170 (1.8 V fixed)
- Microchip MCP1700-1802 (1.8 V)
- On Semiconductor NCP4680/4681 (1.8 V LDO)
- STMicroelectronics LP5907-1.8 (1.8 V LDO)
For TI cross-references, use TI’s cross-reference tool to find other 1.8 V LDOs in TI families. Always compare quiescent current, dropout, current rating, packaging, and temp range.
- Analog Devices ADP170 (1.8 V fixed)
- Microchip MCP1700-1802 (1.8 V)
- On Semiconductor NCP4680/4681 (1.8 V LDO)
- STMicroelectronics LP5907-1.8 (1.8 V LDO)
For TI cross-references, use TI’s cross-reference tool to find other 1.8 V LDOs in TI families. Always compare quiescent current, dropout, current rating, packaging, and temp range.
Features
TPS79918DDCR features (concise):
- Fixed 1.8 V output LDO.
- Input range up to 5.5 V (single-supply operation).
- Output current capability up to about 150 mA with protection.
- Ultra-low quiescent current; enable pin disables regulator for minimal standby current.
- EN pin to enable/disable the device.
- Low dropout for efficient operation near the input limit.
- Protection: current-limit and thermal shutdown for safe operation.
- Stable with small ceramic output capacitors (low ESR).
- 8-pin DDCR package (compact, surface-mount).
- Fixed 1.8 V output LDO.
- Input range up to 5.5 V (single-supply operation).
- Output current capability up to about 150 mA with protection.
- Ultra-low quiescent current; enable pin disables regulator for minimal standby current.
- EN pin to enable/disable the device.
- Low dropout for efficient operation near the input limit.
- Protection: current-limit and thermal shutdown for safe operation.
- Stable with small ceramic output capacitors (low ESR).
- 8-pin DDCR package (compact, surface-mount).
Pinout
- Pin count: 5 pins (in the DDCR package).
- Function: Fixed 1.8-V low-dropout regulator (LDO) with enable. Pins provide VIN, VOUT, GND, and EN; the remaining pin is typically no-connect or an exposed pad depending on the specific DDCR variant.
- Function: Fixed 1.8-V low-dropout regulator (LDO) with enable. Pins provide VIN, VOUT, GND, and EN; the remaining pin is typically no-connect or an exposed pad depending on the specific DDCR variant.
Manufacturer
- Manufacturer: Texas Instruments (TI).
- What kind of company: A multinational American semiconductor company that designs, manufactures, and sells analog and embedded processing integrated circuits and related products.
- What kind of company: A multinational American semiconductor company that designs, manufactures, and sells analog and embedded processing integrated circuits and related products.
Application
TPS79918DDCR is a fixed 1.8 V low-dropout regulator. Common application areas:
- Portable/battery-powered electronics (wearables, IoT sensors, handheld devices) needing a stable 1.8 V rail
- Microcontroller/microprocessor core and memory power supplies
- RF/wireless modules (BLE/Wi‑Fi, GPS, transceivers) requiring a clean 1.8 V supply
- Camera modules and imaging sensors, digital peripherals
- Set-top boxes, display drivers, and multimedia subsystems
- General board-level regulators where space, noise performance, and enable control matter
- Portable/battery-powered electronics (wearables, IoT sensors, handheld devices) needing a stable 1.8 V rail
- Microcontroller/microprocessor core and memory power supplies
- RF/wireless modules (BLE/Wi‑Fi, GPS, transceivers) requiring a clean 1.8 V supply
- Camera modules and imaging sensors, digital peripherals
- Set-top boxes, display drivers, and multimedia subsystems
- General board-level regulators where space, noise performance, and enable control matter
Package
TPS79918DDCR uses TI’s DCR package — a 6‑pin leadless VSON/SON‑style package.
