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Texas Instruments TPS60120PWPRG4
- Part No.:
- TPS60120PWPRG4
- Manufacturer:
- Texas Instruments
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS60120PWPRG4.pdf
- Description:
- IC REG CHARGE PUMP 3.3V 20HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,468
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Product details
Overview
TPS60120PWPRG4 from Texas Instruments is a regulated 200-mA, high-efficiency charge-pump DC/DC converter in a 20-pin PowerPAD (PWP) package. It generates a stable 3.3-V ±4% output from a 1.8-V to 3.6-V input (e.g., two alkaline/NiMH cells), delivers ≥200 mA at 2-V input, features integrated low-battery detection (LBI/LBO), and requires only four external ceramic capacitors - enabling compact, inductorless power conversion for space-constrained portable systems.
For engineers reviewing the TPS60120PWPRG4 datasheet, TPS60120PWPRG4 pinout, TPS60120PWPRG4 application, or TPS60120PWPRG4 equivalent, key selection criteria include its 3.3-V regulated output, 55-µA quiescent current, 0.05-µA shutdown current, adaptive 1.5×/2× mode switching, and thermal performance in the PWP package - all critical for battery-powered medical instruments, PDAs, and handheld instrumentation.
Technical Context
The TPS60120PWPRG4 implements an ACTIVE-CYCLE regulation scheme with adaptive mode switching: it automatically selects between 1.5× and voltage-doubler (2×) conversion based on input voltage and load current to maintain high efficiency across the full 1.8–3.6-V input range. At VI < ~2.4 V, it operates in 2× mode; above that, it shifts to 1.5× mode.
It integrates a 1.21-V bandgap reference, internal resistive feedback divider, error amplifier, dual single-ended charge-pump power stages, pulse-skip mode for light-load efficiency, and dedicated low-battery comparator circuitry (LBI input, open-drain LBO output). Startup limits inrush via controlled output capacitor charging to 0.8 × VI before enabling switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±4% - tightly regulated rail for logic and analog subsystems without external feedback resistors. |
| Max Output Current | 200 mA continuous - sufficient to power microprocessors, LCD bias, or RF modules from two-cell batteries. |
| Input Voltage Range | 1.8 V to 3.6 V - matches nominal voltage of two alkaline, NiCd, or NiMH cells across full discharge curve. |
| Quiescent Current | 55 µA typical - minimizes standby drain in always-on portable devices like glucose meters. |
| Shutdown Current | 0.05 µA typical - enables ultra-low-power sleep states with full load isolation. |
| Switching Frequency | 210–450 kHz - fixed-frequency operation in heavy load; pulse-skipped at light loads to reduce ripple and IQ. |
| Low-Battery Detection | Integrated LBI/LBO with 1.21-V ±5% trip threshold - supports programmable battery monitoring via external resistor divider. |
Pinout & Package
TPS60120PWPRG4 is housed in a thermally enhanced 20-pin PowerPAD (PWP) package with exposed thermal pad. Pin numbering follows top-view layout; GND and PGND pins are separately routed for analog/digital ground separation and optimal thermal conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (7,14) | Supply Input | Dual-input connection for low-impedance path from 1.8–3.6-V source; bypassed to PGND with 10-µF ceramic capacitor. |
| OUT (5,16) | Regulated Output | Dual-output terminals deliver 3.3-V ±4% at up to 200 mA; connected together and bypassed to GND with 22-µF ceramic capacitor. |
| ENABLE (3) | Logic Control Input | Active-high enable; drives low to enter 0.05-µA shutdown with load disconnection; compatible with 1.8-V logic. |
| FB (4) | Feedback Input | Internally tied to 1.21-V reference; connects directly to OUT near load for precise regulation without external resistors. |
| LBI (18) | Low-Battery Input | Analog input referenced to internal 1.21-V comparator; used with external R-divider to set battery warning threshold. |
| LBO (17) | Low-Battery Output | Open-drain output active-low when battery voltage falls below programmed threshold; requires 100-kΩ–1-MΩ pullup to OUT. |
| C1+, C1− (6,8) | Flying Capacitor Terminals | Connect 2.2-µF ceramic capacitor (C1) for primary charge-pump stage; polarity-sensitive placement required. |
| C2+, C2− (15,13) | Flying Capacitor Terminals | Connect second 2.2-µF ceramic capacitor (C2) for secondary charge-pump stage; enables dual-stage topology. |
| GND (1,2,19,20) | Analog Ground | Reference ground for bandgap, error amp, and comparators; must be short-traced to PGND plane. |
| PGND (9–12) | Power Ground | High-current return path for charge-pump switching; all four pins must be tied together and connected to thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| Inductorless Charge-Pump Topology | Eliminates magnetic EMI and board area overhead; uses only four low-ESR ceramic capacitors for full 3.3-V conversion. |
| Adaptive 1.5×/2× Mode Switching | Maintains >85% efficiency across 1.8–3.6-V input by dynamically selecting optimal voltage gain - no user configuration needed. |
| Pulse-Skip Light-Load Regulation | Reduces quiescent current to 55 µA while preserving low output ripple (<30 mVpp at 100 mA) and fast transient response. |
| Integrated Low-Battery Detector | On-chip 1.21-V comparator with hysteresis enables accurate, programmable battery monitoring without external ICs or precision references. |
| Controlled Start-Up Sequence | Charges output capacitor to 0.8 × VI before enabling switching - prevents inrush, eliminates need for Schottky diode, and ensures reliable cold-start at 1.8 V. |
Applications
| Medical Glucose Meters | Handheld Test Equipment |
|---|---|
Use Scenario: Portable blood glucose analyzers powered by two AA alkaline cells requiring stable 3.3-V rail for ADC, microcontroller, and LCD driver over full battery life. IC Role / Device Role / Timing Role: Primary regulated DC/DC converter generating clean 3.3-V supply with low quiescent current and integrated battery monitoring. Use Value: Enables >1000-test battery life using only four capacitors; LBO signal triggers low-battery alert before measurement accuracy degrades. | Use Scenario: Battery-operated multimeters and oscilloscope probes needing isolated, low-noise 3.3-V supply for precision analog front-end and digital logic. IC Role / Device Role / Timing Role: High-efficiency charge-pump regulator delivering 200 mA with <30 mVpp ripple and fast line/load transient response. Use Value: Maintains ADC reference stability during battery voltage sag; adaptive mode switching preserves accuracy as cells discharge from 3.2 V to 1.8 V. |
| PDAs and Electronic Organizers | Cordless Phone Base Stations |
Use Scenario: Legacy PDA platforms with tight PCB real estate and dual-cell battery packs requiring efficient 3.3-V core voltage for ARM-based processors and touch controllers. IC Role / Device Role / Timing Role: Compact, inductor-free step-up converter supporting dynamic load currents from 1 mA (sleep) to 200 mA (active display). Use Value: Pulse-skip mode extends standby time; ENABLE pin allows host processor to gate power, reducing system-level leakage to sub-µA. | Use Scenario: Cordless phone base stations with rechargeable NiMH battery backup that must sustain 3.3-V logic during AC power loss. IC Role / Device Role / Timing Role: Backup power converter providing regulated 3.3-V output during brownout, with undervoltage lockout at 1.6 V. Use Value: UVLO prevents erratic behavior during deep discharge; shutdown current of 0.05 µA minimizes self-discharge of backup cells over weeks of standby. |
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 |
|---|---|---|---|
| TPS60121PWPR | Same PWP package and 3.3-V/200-mA output, but replaces LBI/LBO with power-good (PG) output. | Used where system reset or sequencing depends on output regulation status, not battery level. | Select TPS60121PWPR if power-good signaling is required instead of low-battery detection. |
| MAX860ESA+ | 3.3-V/100-mA charge pump in 8-pin SOIC; no integrated battery monitor; higher IQ (110 µA) and no adaptive mode switching. | Suitable for simpler, lower-current applications where board space is less constrained than for handheld medical devices. | Choose MAX860ESA+ only for cost-sensitive, low-power designs without battery monitoring or high-efficiency requirements. |
Compared with TPS60121PWPR, TPS60120PWPRG4 provides battery-state awareness rather than output-status signaling; compared with MAX860ESA+, it delivers double the output current, 50% lower quiescent current, and adaptive efficiency optimization - making it superior for demanding portable instrumentation.
Availability
TPS60120PWPRG4 is available at Aetrix Electronics and suitable for portable medical instruments, handheld test equipment, PDAs, and cordless phone base stations requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS60120PWPRG4 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, with decades of expertise in high-reliability, low-power DC/DC conversion.
The TPS6012x product line was designed specifically for space-critical, battery-powered applications - delivering regulated 3.3-V or 3-V outputs from two-cell sources with minimal external components and industry-leading efficiency across wide input ranges.
FAQ
What is the regulated output voltage of the TPS60120PWPRG4?
The TPS60120PWPRG4 delivers a precisely regulated 3.3-V output with ±4% tolerance across its full operating range (1.8–3.6-V input, –40°C to 85°C junction temperature). This is achieved using an internal 1.21-V bandgap reference and fixed-resistor feedback network - no external resistors are required to set the output voltage. The TPS60120PWPRG4 maintains this regulation under load currents up to 200 mA and input variations typical of two-cell alkaline or NiMH battery discharge profiles.
Does the TPS60120PWPRG4 require external inductors?
No, the TPS60120PWPRG4 is an inductorless charge-pump DC/DC converter. It uses only four external ceramic capacitors - two 2.2-µF flying capacitors (C1, C2), one 10-µF input capacitor (Ci), and one 22-µF output capacitor (Co) - to achieve regulated 3.3-V step-up conversion. This eliminates magnetic EMI concerns, reduces PCB footprint, and simplifies layout compared to inductive boost converters. The absence of inductors also improves reliability in vibration-prone portable applications.
How does the TPS60120PWPRG4 manage efficiency across varying input voltages?
The TPS60120PWPRG4 employs adaptive mode switching to maintain high efficiency: it automatically selects between 1.5× and 2× (voltage-doubler) conversion ratios based on real-time input voltage and load current. Below ~2.4 V input, it operates in 2× mode for maximum voltage gain; above that, it switches to 1.5× mode to minimize switching losses. This architecture sustains >85% efficiency from 1.8 V to 3.6 V input at 100–200 mA loads - a key advantage over fixed-ratio charge pumps.
What is the function of the LBI and LBO pins on the TPS60120PWPRG4?
The LBI (Low-Battery Input) and LBO (Low-Battery Output) pins implement an integrated battery-monitoring function. LBI accepts a scaled-down battery voltage via an external resistor divider; when that voltage falls below the internal 1.21-V ±5% comparator threshold, LBO pulls low (open-drain) to signal low battery. This enables programmable battery warnings without external comparators. For TPS60120PWPRG4, LBI must be connected to the divider and LBO pulled up to OUT with 100-kΩ–1-MΩ - unused LBI is grounded, LBO left floating.
What is the shutdown current specification for the TPS60120PWPRG4?
The TPS60120PWPRG4 draws a typical shutdown current of 0.05 µA (maximum 1 µA) when the ENABLE pin is driven low. In this state, all internal circuitry - including oscillator, charge pumps, and comparators - is disabled, and the output is fully disconnected from the input. This ultra-low shutdown current minimizes battery self-discharge in long-term storage or sleep modes, extending shelf life and standby duration in portable medical and instrumentation devices.
TPS60120PWPRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
TPS60120PWPRG4 FAQ
1.How can I place an order for TPS60120PWPRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60120PWPRG4 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 TPS60120PWPRG4 reliable?
The price and inventory of TPS60120PWPRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60120PWPRG4 is usually 5 days.
3.What payment methods are accepted for TPS60120PWPRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60120PWPRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60120PWPRG4?
TPS60120PWPRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60120PWPRG4 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 TPS60120PWPRG4?
For technical support, including TPS60120PWPRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60120PWPRG4 requirements.
6.How does Aetrix verify that TPS60120PWPRG4 is sourced from the original manufacturer or authorized distributors?
All TPS60120PWPRG4 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 TPS60120PWPRG4 meets industry standards.
7.What is the process for return or replacement of TPS60120PWPRG4?
All TPS60120PWPRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS60120PWPRG4, 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 TPS60120PWPRG4 part is unused and in its original packaging.
Return procedure for TPS60120PWPRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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