Specifications
| Type | Description |
|---|---|
| Part Number | LM27762 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | DSS (WSON, 12), 3 mm x 2 mm |
| Component Type | Power_IC |
| Input Voltage Range | 2.7 to 5.5 V; Operating input voltage, VIN |
| Positive Adjustable Output Voltage | 1.5 to 5 V; 5.5 V >= VIN >= 2.7 V |
| Negative Adjustable Output Voltage | -5 to -1.5 V; 5.5 V >= VIN >= 2.7 V |
| Output Current | 0 to 250 mA; Operating output current, IOUT |
| Continuous Output Current Absolute Maximum | 300 mA; CPOUT, OUT+ and OUT-, continuous output current |
| Supply Current | 390 uA typ; Open circuit, no load, EN+ and EN- connected to VIN |
| Shutdown Supply Current | 0.5 uA typ, 5 uA max; Shutdown mode |
| Switching Frequency | 1.7 MHz min, 2 MHz typ, 2.3 MHz max; VIN = 3.6 V |
| Inverter Output Resistance | 2.5 ohm typ; VPOUT, VIN = 5.5 V, IL = 100 mA |
| Negative LDO Dropout Voltage | 30 mV typ; IL = 100 mA, VOUT- = -5 V |
| Positive LDO Dropout Voltage | 45 mV typ; IL = 100 mA, VOUT = 5 V |
| Negative Output PSRR | 50 dB typ; OUT-, IL = 100 mA, VOUT- = -1.8 V, 10 kHz |
| Positive Output PSRR | 43 dB typ; OUT+, IL = 100 mA, VOUT+ = 1.8 V, 10 kHz |
| Negative Output Noise Voltage | 22 uVRMS typ; IL = 80 mA, 10 Hz to 100 kHz |
| Positive Output Noise Voltage | 22 uVRMS typ; IL = 80 mA, 10 Hz to 100 kHz |
| Negative Feedback Reference Voltage | -1.238 V min, -1.22 V typ, -1.202 V max; FB- pin |
| Positive Feedback Reference Voltage | 1.182 V min, 1.2 V typ, 1.218 V max; FB+ pin |
| Negative Output Load Regulation | 34 uV/mA typ; 0 to 250 mA, VOUT = -1.8 V |
| Positive Output Load Regulation | 11 uV/mA typ; 0 to 250 mA, VOUT = 1.8 V |
| Negative Output Line Regulation | 1.5 mV/V typ; 5 V >= VIN >= 2.7 V, IL = 50 mA |
| Positive Output Line Regulation | 1.9 mV/V typ; 5 V >= VIN >= 2.7 V, IL = 50 mA |
| Enable Input Voltage High | 1.2 V min; 5.5 V >= VIN >= 2.7 V |
| Enable Input Voltage Low | 0.4 V max; 5.5 V >= VIN >= 2.7 V |
| Operating Ambient Temperature | -40 to 85 degC; Recommended operating conditions |
| Operating Junction Temperature | -40 to 125 degC; Recommended operating conditions |
| Storage Temperature | -65 to 150 degC; Tstg |
| Maximum Junction Temperature | 150 degC; TJMAX absolute maximum rating |
| VIN to GND Absolute Maximum | 5.8 V max; VIN to GND or GND to VOUT |
| OUT Short-Circuit Duration | 1 s max; OUT+ and OUT- short-circuit duration to GND |
| HBM ESD Rating | +/-1000 V; Human-body model per ANSI/ESDA/JEDEC JS-001 |
| CDM ESD Rating | +/-250 V; Charged-device model per JEDEC JESD22-C101 |
| Junction-to-Ambient Thermal Resistance | 62.2 degC/W; DSS WSON 12-pin package |
| Junction-to-Case Top Thermal Resistance | 54.7 degC/W; DSS WSON 12-pin package |
| Junction-to-Board Thermal Resistance | 25.6 degC/W; DSS WSON 12-pin package |
| Junction-to-Case Bottom Thermal Resistance | 9.2 degC/W; DSS WSON 12-pin package |
| Power Good Output | Open drain, active low; Logic 0 = power good, Logic 1 = power not good |
| Positive Enable Input | Active high; EN+ enables positive LDO |
| Negative Enable Input | Active high; EN- enables charge pump and negative LDO |
| Datasheet Status | request_only |
Product Overview
The LM27762 is a Texas Instruments Power_Management power IC built as a low-noise charge pump with integrated LDO outputs. It supports an operating input voltage range of 2.7 to 5.5 V and generates adjustable positive and negative rails. The positive output is adjustable from 1.5 to 5 V, while the negative output is adjustable from -5 to -1.5 V across the stated input range.
Output current operation is specified from 0 to 250 mA, with a 300 mA continuous output current absolute maximum for CPOUT, OUT+, and OUT-. The charge pump switching frequency is specified at 1.7 MHz minimum, 2 MHz typical, and 2.3 MHz maximum at VIN = 3.6 V. Typical no-load supply current is 390 uA when EN+ and EN- are tied to VIN, and shutdown supply current is 0.5 uA typical, 5 uA maximum.
The device is offered in a DSS WSON 12-pin package measuring 3 mm x 2 mm. Thermal data includes 62.2 degC/W junction-to-ambient resistance and 9.2 degC/W junction-to-case bottom resistance. Logic functions include active-high EN+ and EN- inputs and an open-drain, active-low power-good output where logic 0 indicates power good.
Key Features
- 2.7 to 5.5 V operating input range
- Adjustable positive output from 1.5 to 5 V
- Adjustable negative output from -5 to -1.5 V
- 0 to 250 mA operating output current
- 2 MHz typical switching frequency at VIN 3.6 V
- 22 uVRMS typical noise on positive output
- 22 uVRMS typical noise on negative output
- Active-high positive and negative enable inputs
- Open-drain active-low power-good output
- DSS WSON 12-pin, 3 mm x 2 mm package
Typical Applications
- Positive and negative bias rails
- Low-noise adjustable supply rails
- Compact dual-rail power circuits
- Enable-controlled power sequencing
- Power-good monitored rail generation
Procurement Notes
When requesting a quote for LM27762, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What input voltage range does the LM27762 support?
The LM27762 operating input voltage range is specified as 2.7 to 5.5 V at VIN. Within this input range, the device supports adjustable positive and negative output voltage ranges as listed in the extracted datasheet facts.
What output voltage ranges are available from the LM27762?
For 5.5 V >= VIN >= 2.7 V, the positive adjustable output voltage range is 1.5 to 5 V. Under the same input condition, the negative adjustable output voltage range is -5 to -1.5 V.
What package is specified for the LM27762?
The LM27762 package case is DSS, also described as WSON, 12 pins, with a 3 mm x 2 mm body size. Thermal resistance values in the extracted facts are specified for the DSS WSON 12-pin package.
How are the LM27762 enable and power-good pins defined?
EN+ is an active-high input that enables the positive LDO, and EN- is an active-high input that enables the charge pump and negative LDO. The power-good output is open drain and active low, with logic 0 indicating power good.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 25, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.