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Texas Instruments TPS60124PWP
- Part No.:
- TPS60124PWP
- Manufacturer:
- Texas Instruments
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS60124PWP.pdf
- Description:
- IC REG CHARGE PUMP 3V 20HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,752
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Product details
Overview
TPS60124PWP from Texas Instruments is a regulated 200-mA, 3-V ±4% charge-pump DC/DC converter for two-cell battery inputs (1.8 V to 3.6 V), featuring low-battery detection, 55-µA quiescent current, and no-inductor operation in a thermally enhanced 20-pin PowerPAD (PWP) package. It delivers stable power to portable medical instruments and handheld instrumentation.
For engineers reviewing the TPS60124PWP datasheet, TPS60124PWP pinout, TPS60124PWP application, or TPS60124PWP equivalent, key selection criteria include its 3-V output regulation accuracy, integrated low-battery comparator with programmable trip point, adaptive 1.5×/2× mode switching, and shutdown current of 0.05 µA.
Technical Context
The TPS60124PWP employs dual single-ended charge pumps with ACTIVE-CYCLE regulation-maintaining fixed frequency under heavy load and entering pulse-skip mode at light loads to minimize quiescent current. Its adaptive mode switching selects between 1.5× and voltage-doubler conversion based on input voltage and load current to sustain >80% efficiency across 1.8–3.6 V input range.
It integrates a 1.21-V bandgap reference, internal resistive feedback divider, error amplifier, and MOSFET switch control circuitry. The low-battery detector (LBI/LBO) uses an internal 1.21-V ±5% reference and supports external resistor programming; LBI is functional while PG is not present on this variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±4% - tightly regulated rail for 3-V logic and analog subsystems |
| Max Output Current | 200 mA continuous - sufficient for microprocessor cores and sensor interfaces |
| Input Voltage Range | 1.8 V to 3.6 V - matches nominal voltage of two alkaline/NiMH/NiCd cells |
| Quiescent Current | 55 µA typical - extends battery life in always-on portable devices |
| Shutdown Current | 0.05 µA - isolates load and preserves battery during deep sleep |
| Switching Frequency | 210–450 kHz - enables compact 2.2-µF flying capacitors and low EMI |
| Low-Battery Trip | 1.21 V ±5% at LBI - programmable via external resistor divider for precise battery monitoring |
Pinout & Package
The TPS60124PWP is housed in a 20-pin thermally enhanced PowerPAD (PWP) TSSOP package with exposed thermal pad for improved power dissipation (RθJA = 178°C/W). Pin functions are validated per SLVS257B datasheet revision August 2000.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (7,14) | Supply Input | Dual-input pins for low-impedance connection to 1.8–3.6 V battery source; bypassed to PGND |
| OUT (5,16) | Regulated Output | Dual-output pins deliver 3.0 V ±4%; must be shorted and bypassed with 22-µF ceramic capacitor |
| FB (4) | Feedback Input | Connects directly to OUT near load for precision regulation; internal 1.21-V reference sets output |
| ENABLE (3) | Logic Control | Active-high enable; drives low to enter 0.05-µA shutdown with load disconnection |
| 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 signaling low battery; requires 100-kΩ–1-MΩ pullup to OUT |
| C1+, C1− (6,8) | Flying Cap Terminals | Drive first charge-pump stage; require 2.2-µF X7R ceramic capacitors |
| C2+, C2− (15,13) | Flying Cap Terminals | Drive second charge-pump stage; require 2.2-µF X7R ceramic capacitors |
| GND (1,2,19,20) | Analog Ground | Reference ground for internal bandgap and control circuits; separate from PGND |
| PGND (9–12) | Power Ground | High-current return path for charge-pump switching; must be tied to GND with short trace |
Key Features
| Feature | Design Value |
|---|---|
| No-inductor architecture | Eliminates magnetic EMI and PCB area overhead; uses only four 2.2–22 µF ceramic capacitors |
| Adaptive 1.5×/2× mode switching | Automatically selects optimal gain ratio to maintain >80% efficiency across full 1.8–3.6 V input range |
| Pulse-skip light-load regulation | Reduces switching activity below ~10 mA load, cutting IQ to 55 µA and minimizing ripple |
| Integrated low-battery detector | Programmable trip point (±6% total accuracy) via external resistors; LBO open-drain output sinks 1 mA |
| Thermally enhanced PWP package | 20-pin PowerPAD TSSOP with exposed copper pad; supports 448 mW at 70°C ambient |
Applications
| Medical Glucose Meters | Handheld Test Equipment |
|---|---|
Use Scenario: Battery-powered glucose meters requiring stable 3-V supply for electrochemical sensor biasing and ADC reference. IC Role / Device Role / Timing Role: Regulated 3.0 V ±4% power source with low-battery alert to prevent erroneous readings during battery depletion. Use Value: 200 mA output sustains sensor excitation and microcontroller operation; 0.05 µA shutdown preserves battery during idle periods. | Use Scenario: Portable multimeters and signal generators powered by two AA cells needing clean, regulated 3-V rail. IC Role / Device Role / Timing Role: Inductorless DC/DC converter delivering low-noise 3.0 V supply with minimal board space and EMI impact. Use Value: Adaptive mode switching maintains >85% efficiency from 2.0 V to 3.3 V input; pulse-skip mode extends runtime at standby. |
| Backup-Battery Boost Converters | Cordless Phone Base Stations |
Use Scenario: Secondary boost path in systems where main supply fails and backup coin cell must power critical memory or RTC. IC Role / Device Role / Timing Role: Low-quiescent, high-efficiency charge pump enabling reliable 3-V backup rail from 1.8–2.4 V sources. Use Value: 55 µA IQ and 0.05 µA shutdown ensure multi-month backup operation; undervoltage lockout prevents brownout resets. | Use Scenario: Cordless phone base stations using two NiMH cells to power display, audio codec, and RF transceiver. IC Role / Device Role / Timing Role: Primary 3.0 V regulator supporting burst-mode transmission and LCD backlight control. Use Value: Dual OUT pins reduce IR drop; thermal PWP package handles intermittent 200 mA peaks without derating. |
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 |
|---|---|---|---|
| TPS60120PWP | 3.3 V ±4% output; identical pinout, package, and low-battery function | Targets 3.3-V logic systems (e.g., SD cards, USB peripherals); not suitable for 3.0-V-only rails | Select when system requires 3.3 V output and retains same battery-monitoring capability |
| MAX860ESA+ | 3.3 V fixed output; 100 mA max; SO-8 package; no low-battery detector | Lower cost and smaller footprint for non-critical 3.3-V applications without battery monitoring | Choose for space-constrained designs where 100 mA and absence of LBI/LBO are acceptable |
Compared with TPS60120PWP, TPS60124PWP provides 3.0-V output for legacy 3-V logic while retaining identical low-battery functionality; versus MAX860ESA+, it offers double the output current, integrated battery monitoring, and superior thermal performance in PWP packaging.
Availability
TPS60124PWP is available at Aetrix Electronics and suitable for portable medical instruments, handheld test equipment, backup-battery boost converters, and cordless phone base stations requiring stable component supply and long-term production continuity.
Supply support for TPS60124PWP 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 ICs with broad industrial and automotive qualification.
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 features.
FAQ
What output voltage does the TPS60124PWP regulate to, and how accurate is it?
The TPS60124PWP regulates to 3.0 V ±4% over temperature and load, verified per SLVS257B datasheet Section 9. This tolerance ensures compatibility with 3-V logic families and analog sensors requiring stable bias. The internal 1.21-V reference and resistive feedback network achieve this accuracy without external components.
Does the TPS60124PWP include a power-good output, or only low-battery detection?
The TPS60124PWP includes a low-battery detector (LBI/LBO) but does not feature a power-good (PG) output. Per the "AVAILABLE OPTIONS" table in SLVS257B, TPS60124PWP is explicitly designated as "2-Cell to 3 V, 200 mA, Low battery detector", confirming PG is absent. LBO is an open-drain output requiring external pullup.
What external components are required to operate the TPS60124PWP?
The TPS60124PWP requires exactly four external capacitors: 10-µF input (Ci), two 2.2-µF flying capacitors (C1, C2), and a 22-µF output capacitor (Co)-all ceramic X7R type. No inductors, diodes, or resistors are needed for basic operation, though optional resistors program the low-battery trip point.
How does the TPS60124PWP manage efficiency across varying input voltages?
The TPS60124PWP uses adaptive mode switching: it operates in voltage-doubler mode below ~2.4 V input and switches to 1.5× mode above that threshold. This dynamic selection-based on real-time VI and IL-maintains >80% efficiency from 1.8 V to 3.6 V, as shown in Figures 9–11 of SLVS257B.
What is the maximum continuous output current rating for the TPS60124PWP?
The TPS60124PWP is rated for 200 mA continuous output current, confirmed in the "AVAILABLE OPTIONS" table and electrical characteristics (IO(MAX) = 200 mA for TPS60124/TPS60125). Absolute maximum rating is 300 mA, but sustained operation above 200 mA risks thermal derating beyond 70°C ambient.
TPS60124PWP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- 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):
- 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
TPS60124PWP FAQ
1.How can I place an order for TPS60124PWP through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60124PWP 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 TPS60124PWP reliable?
The price and inventory of TPS60124PWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60124PWP is usually 5 days.
3.What payment methods are accepted for TPS60124PWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60124PWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60124PWP?
TPS60124PWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60124PWP 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 TPS60124PWP?
For technical support, including TPS60124PWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60124PWP requirements.
6.How does Aetrix verify that TPS60124PWP is sourced from the original manufacturer or authorized distributors?
All TPS60124PWP 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 TPS60124PWP meets industry standards.
7.What is the process for return or replacement of TPS60124PWP?
All TPS60124PWP units undergo pre-shipment inspection (PSI). If there is an issue with TPS60124PWP, 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 TPS60124PWP part is unused and in its original packaging.
Return procedure for TPS60124PWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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