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Texas Instruments TPS60120PWPR
- Part No.:
- TPS60120PWPR
- Manufacturer:
- Texas Instruments
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS60120PWPR.pdf
- Description:
- IC REG CHARGE PUMP 3.3V 20HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,300
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Product details
Overview
TPS60120PWPR from Texas Instruments is a regulated 200-mA, 3.3-V ±4% charge-pump DC/DC converter for two-cell battery systems (1.8 V–3.6 V input). It delivers high efficiency via adaptive 1.5×/2× mode switching, requires no inductors, and integrates low-battery detection with LBI/LBO pins. Used in glucose meters, PDAs, and handheld instrumentation where compact size and low EMI are critical.
For engineers reviewing the TPS60120PWPR datasheet, TPS60120PWPR pinout, TPS60120PWPR application, or TPS60120PWPR equivalent, key selection criteria include its 200-mA regulated output, 55-µA quiescent current, shutdown isolation, thermal-enhanced 20-pin PWP package, and compatibility with ceramic flying capacitors (C1/C2 = 2.2 µF).
Technical Context
The TPS60120PWPR employs dual single-ended charge pumps with ACTIVE-CYCLE regulation-maintaining fixed frequency under heavy load and pulse-skip mode at light loads to minimize IQ. Its adaptive mode switching dynamically selects 1.5× or 2× conversion based on input voltage and load current to sustain >80% efficiency across 1.8–3.6 V input.
It integrates a 1.21-V bandgap reference, internal resistive feedback, undervoltage lockout (1.6 V), and short-circuit current limiting (115 mA). The low-battery detector compares LBI to 1.21 V ±5%, with open-drain LBO output capable of sinking 1 mA-enabling programmable trip points via external resistor dividers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±4% - tightly regulated for powering 3.3-V logic and analog circuits without external feedback resistors. |
| Max Output Current | 200 mA continuous - sufficient to drive microprocessor cores, LCD bias, or RF front-ends in portable devices. |
| Input Voltage Range | 1.8 V to 3.6 V - matches nominal voltage of two alkaline/NiMH/NiCd cells across full discharge curve. |
| Quiescent Current | 55 µA typical - extends battery life in always-on monitoring applications like medical glucose meters. |
| Shutdown Current | 0.05 µA max - isolates load from input and minimizes standby drain during sleep modes. |
| Switching Frequency | 210–450 kHz - enables use of small 2.2-µF ceramic flying capacitors and reduces output ripple vs lower-frequency alternatives. |
| UVLO Threshold | 1.6 V typical - prevents erratic operation near battery end-of-life and ensures clean shutdown. |
Pinout & Package
The TPS60120PWPR is housed in a thermally enhanced 20-pin PowerPAD™ TSSOP (PWP) package with an exposed thermal pad for improved power dissipation (RθJA = 178°C/W). Pin functions are validated per SLVS257B Rev. August 2000.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (7,14) | Supply input | Dual-input pins accept 1.8–3.6 V; must be bypassed to PGND with 10-µF ceramic capacitor (Ci) for stability. |
| OUT (5,16) | Regulated output | Dual-output pins deliver 3.3 V ±4%; connect together and bypass to GND with 22-µF ceramic capacitor (Co). |
| C1+, C1− (6,8) | Flying capacitor terminals | Interface with 2.2-µF ceramic capacitor (C1); polarity-sensitive nodes defining first charge-pump stage. |
| C2+, C2− (15,13) | Flying capacitor terminals | Interface with second 2.2-µF ceramic capacitor (C2); completes dual-stage charge-pump topology. |
| ENABLE (3) | Logic control input | Active-high enable; drives low to enter 0.05-µA shutdown with load disconnection and oscillator halt. |
| FB (4) | Feedback input | Internally tied to 1.21-V reference; connect directly to OUT for fixed 3.3-V regulation (no external divider needed). |
| LBI (18) | Low-battery comparator input | Accepts resistive divider from battery; trips at 1.21 V ±5% to signal end-of-life condition. |
| LBO (17) | Open-drain alarm output | Sinks 1 mA when LBI falls below threshold; requires 100-kΩ–1-MΩ pullup to OUT for active-low warning. |
| GND (1,2,19,20) | Analog ground | Reference for internal bandgap and error amplifier; route separately from PGND to minimize noise coupling. |
| PGND (9–12) | Power ground | Carries high-current charge-pump switching paths; tie all four pins together with wide copper pour. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive 1.5×/2× mode switching | Automatically selects optimal gain ratio based on VI and IO to maintain >80% efficiency across full battery range. |
| ACTIVE-CYCLE regulation | Combines fixed-frequency operation at heavy loads and pulse-skip mode at light loads-achieving low ripple and 55-µA IQ simultaneously. |
| Integrated low-battery detector | On-chip 1.21-V reference and comparator eliminate external components; supports programmable trip points via R1/R2 divider. |
| No-inductor design | Relies solely on four ceramic capacitors (Ci, Co, C1, C2), reducing EMI, board area, and BOM cost versus inductor-based boost converters. |
| Load isolation in shutdown | Disconnects OUT from IN during ENABLE = low, preventing backfeed and enabling true zero-power standby in battery systems. |
Applications
| Medical Glucose Meters | Handheld PDAs & Organizers |
|---|---|
Use Scenario: Portable blood glucose analyzers powered by two AA/AAA alkaline cells requiring stable 3.3-V rail for ADC, MCU, and LCD driver. IC Role / Device Role / Timing Role: Primary regulated 3.3-V supply generating clean power from decaying battery voltage (1.8–3.6 V). Use Value: Adaptive mode switching sustains >85% efficiency down to 1.8 V input, extending usable battery life by ≥20% versus fixed-ratio charge pumps. | Use Scenario: Compact personal digital assistants with backlight, touch controller, and flash memory-all needing regulated 3.3-V supply. IC Role / Device Role / Timing Role: High-efficiency DC/DC converter replacing linear regulators to reduce heat and extend runtime between charges. Use Value: 200-mA output capability and 55-µA quiescent current enable simultaneous operation of multiple peripherals while minimizing standby drain. |
| Backup-Battery Boost Converters | Cordless Phone Base Stations |
Use Scenario: Secondary power path using coin-cell backup to maintain RTC and SRAM during main battery removal or failure. IC Role / Device Role / Timing Role: Low-quiescent, isolated boost converter that activates only when primary supply drops below UVLO threshold. Use Value: 0.05-µA shutdown current and load disconnection prevent backup cell depletion during normal operation. | Use Scenario: Cordless phone base stations with rechargeable NiMH packs supplying 3.3-V logic for DECT radio and display subsystems. IC Role / Device Role / Timing Role: Efficient step-up regulator delivering regulated 3.3 V across wide input range as battery discharges from 3.6 V to 2.0 V. Use Value: Pulse-skip mode reduces IQ to <100 µA at light loads (e.g., standby), improving average efficiency by 15–25% over fixed-frequency alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar regulated charge-pump DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60124PWPR | Fixed 3.0-V ±4% output; identical pinout, package, and feature set except LBI/LBO instead of power-good. | Targeted at 3.0-V systems (e.g., certain low-voltage MCUs or sensors) rather than 3.3-V logic rails. | Select when system voltage tolerance aligns with 3.0 V and low-battery monitoring-not power-good status-is required. |
| MAX680ESA+ | 3.3-V fixed output, 100-mA max, 8-pin SOIC; no integrated LBI/LBO, higher 120-µA IQ, no adaptive mode switching. | Lacks battery monitoring and advanced regulation; suited for simpler, lower-current applications with less stringent efficiency demands. | Choose only if board space is constrained to 8-pin SOIC and 100-mA output suffices-accept trade-offs in efficiency and feature integration. |
Compared with TPS60124PWPR, the TPS60120PWPR provides 3.3-V output essential for standard logic interfaces, while MAX680ESA+ offers smaller footprint but sacrifices 100 mA output capacity, adaptive efficiency optimization, and integrated battery monitoring-making it suitable only for legacy or ultra-low-cost designs.
Availability
TPS60120PWPR is available at Aetrix Electronics and suitable for medical glucose meters, handheld PDAs, cordless phone base stations, and backup-battery boost converters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS60120PWPR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies.
The TPS6012x product line was designed specifically for space-constrained, battery-powered portable electronics requiring high-efficiency, inductorless DC/DC conversion with integrated system monitoring functions.
FAQ
What is the output voltage accuracy and regulation method of the TPS60120PWPR?
The TPS60120PWPR delivers a regulated 3.3-V output with ±4% accuracy over temperature and load. It uses ACTIVE-CYCLE regulation: at heavy loads, it modulates internal MOSFET on-resistance while maintaining fixed 210–450 kHz switching frequency; at light loads, it enters pulse-skip mode to reduce quiescent current to 55 µA while preserving tight voltage regulation. No external feedback resistors are needed-the internal 1.21-V reference and fixed resistor divider set the output.
Does the TPS60120PWPR require external inductors or transformers?
No, the TPS60120PWPR is an inductorless charge-pump DC/DC converter. It operates using only four external ceramic capacitors: a 10-µF input capacitor (Ci), a 22-µF output capacitor (Co), and two 2.2-µF flying capacitors (C1 and C2). This eliminates magnetic components, reduces EMI, simplifies layout, and lowers BOM cost-making it ideal for compact, noise-sensitive portable applications.
How does the low-battery detection function work on the TPS60120PWPR?
The TPS60120PWPR integrates a precision low-battery detector with LBI (input) and LBO (open-drain output) pins. LBI compares the battery voltage-via an external resistor divider-to an internal 1.21-V ±5% reference. When the divided voltage falls below this threshold, LBO pulls low (sinking up to 1 mA) to signal end-of-life. A 100-kΩ–1-MΩ pullup resistor to OUT is required. If unused, connect LBI to GND and leave LBO unconnected.
What happens to the output during TPS60120PWPR shutdown mode?
When ENABLE is driven low, the TPS60120PWPR enters shutdown mode: the oscillator halts, all internal switches disable, and the load is actively disconnected from the input supply. Supply current drops to ≤1 µA (typically 0.05 µA), and output leakage remains ≤1 µA. This ensures zero backfeed and preserves battery energy-critical for systems requiring true zero-power standby, such as medical monitors or backup power circuits.
Can the TPS60120PWPR operate from a single-cell Li-ion battery?
No-the TPS60120PWPR is specified for 1.8-V to 3.6-V input, matching two-cell alkaline/NiMH/NiCd stacks. A single Li-ion cell (fully charged at 4.2 V, discharged to ~3.0 V) exceeds the absolute maximum input rating of 5.5 V but violates recommended operating conditions above 3.6 V. Sustained operation above 3.6 V risks reliability degradation. For single-cell Li-ion, consider TI's TPS61099 or similar boost converters rated for 1.8–5.5 V input.
TPS60120PWPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 200mA
- Frequency - Switching:
- 320kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-HTSSOP
TPS60120PWPR FAQ
1.How can I place an order for TPS60120PWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60120PWPR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS60120PWPR reliable?
The price and inventory of TPS60120PWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60120PWPR is usually 5 days.
3.What payment methods are accepted for TPS60120PWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60120PWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60120PWPR?
TPS60120PWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60120PWPR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS60120PWPR?
For technical support, including TPS60120PWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60120PWPR requirements.
6.How does Aetrix verify that TPS60120PWPR is sourced from the original manufacturer or authorized distributors?
All TPS60120PWPR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS60120PWPR meets industry standards.
7.What is the process for return or replacement of TPS60120PWPR?
All TPS60120PWPR units undergo pre-shipment inspection (PSI). If there is an issue with TPS60120PWPR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS60120PWPR part is unused and in its original packaging.
Return procedure for TPS60120PWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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