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Texas Instruments TPS60202DGSR
- Part No.:
- TPS60202DGSR
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS60202DGSR.pdf
- Description:
- IC REG CHARGE PUMP 3.3V 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,440
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Product details
Overview
TPS60202DGSR from Texas Instruments is a regulated 3.3 V, 50 mA charge pump DC/DC converter for battery-powered systems operating from 1.6 V to 3.6 V input. It features integrated low-battery detection (LBI/LBO), <5 mVPP output ripple via push-pull topology, and 35 µA quiescent current - enabling compact, low-EMI power supply design in portable medical instruments and handheld instrumentation.
For engineers reviewing the TPS60202DGSR datasheet, TPS60202DGSR pinout, TPS60202DGSR application, or TPS60202DGSR equivalent, key selection considerations include its 50 mA output rating (vs. 100 mA in TPS60200/TPS60201), MSOP-10 package constraints, low-battery comparator threshold of 1.18 V ±4%, and absence of power-good (PG) functionality - critical for battery monitoring in glucose meters and cordless phones.
Technical Context
The TPS60202DGSR implements a dual single-ended charge pump in push-pull mode (180° phase shift), enabling continuous current transfer to minimize output ripple. Its regulation uses pulse-skip mode below 7 mA load and constant-frequency mode above that threshold, with internal MOSFET gate drive dynamically adjusted by an error amplifier fed from a 1.18 V reference.
Startup includes precharge of the output capacitor to 0.8 × VIN before switching begins, limiting inrush current. When disabled via EN, the device isolates input from load, discharges CO automatically within 0.6 ms, and draws only 0.05 µA shutdown current - ensuring reliable system shutdown and extended shelf life in battery-operated devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 3.3 V ±4% (regulated across 1.6–3.6 V input and 0–50 mA load) |
| Max output current | 50 mA continuous (at VIN ≥ 2 V; drops at lower input) |
| Output ripple | <5 mVPP (enables noise-sensitive analog circuits without additional LDO filtering) |
| Quiescent current | 35 µA (supports >1-year battery life in always-on portable instrumentation) |
| Shutdown current | 0.05 µA (isolates battery from load, preserving shelf life) |
| Low-battery threshold | 1.18 V ±4% on LBI pin (configurable via external resistor divider for precise cell-voltage monitoring) |
| Switching frequency | 200–400 kHz (internal oscillator) or 400–800 kHz (external sync; avoids 455-kHz IF band) |
Pinout & Package
TPS60202DGSR is housed in a 10-pin MSOP package (3.00 mm × 3.00 mm body size) with exposed thermal pad (not electrically connected). Pin numbering follows standard top-view orientation; GND pins (1 and 2) provide dual ground paths for improved thermal and noise performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (LBI) | Low-battery detector input | Analog input referenced to 1.18 V threshold; connects to resistive divider from battery to enable cell-level undervoltage warning |
| 2 (GND) | Power ground | Primary return path for charge pump stages and internal circuitry; must be low-impedance connection to PCB ground plane |
| 3 (C1–) | Flying capacitor negative terminal | Connects to negative side of 1 µF ceramic flying capacitor C1; forms half of push-pull charge transfer path |
| 4 (C1+) | Flying capacitor positive terminal | Connects to positive side of C1; alternates conduction phase with C2 to sustain continuous output current |
| 5 (OUT) | Regulated 3.3 V output | Supplies load directly; requires 2.2 µF ceramic bypass capacitor (Co) to ground for ripple suppression and transient response |
| 6 (C2+) | Flying capacitor positive terminal | Connects to positive side of 1 µF ceramic flying capacitor C2; complements C1 in 180° out-of-phase operation |
| 7 (IN) | Input supply | Accepts 1.6–3.6 V battery source; bypassed with 2.2 µF ceramic capacitor (Ci) to minimize input impedance and stabilize source current |
| 8 (C2–) | Flying capacitor negative terminal | Connects to negative side of C2; enables bidirectional energy transfer between input and output without inductors |
| 9 (EN) | Enable/synchronization input | Digital control: logic high enables operation; external clock applied here synchronizes switching (400–800 kHz); logic low disables with auto-discharge |
| 10 (LBO) | Open-drain low-battery output | Pulled low when LBI < 1.18 V; requires external pullup (100 kΩ–1 MΩ) to OUT or compatible rail for microcontroller interrupt signaling |
Key Features
| Feature | Design Value |
|---|---|
| Push-pull charge pump topology | Enables <5 mVPP ripple and eliminates need for EMI-filtering inductors - critical for space-constrained portable audio and medical devices |
| Integrated low-battery detector | 1.18 V ±4% threshold with 10 mV hysteresis on LBI/LBO pins allows precise two-cell alkaline/NiMH end-of-life detection without external comparators |
| Auto-discharge on shutdown | Discharges output capacitor in ≤0.6 ms when EN = low, ensuring safe, stable power-down state for microprocessor systems and PDAs |
| Ultra-low quiescent current | 35 µA no-load draw extends battery runtime in always-on applications like glucose meters and handheld test equipment |
| External clock synchronization | EN pin accepts 400–800 kHz external clock to avoid interference with sensitive IF bands (e.g., 455 kHz) in communication devices |
Applications
| Glucose Meters | Handheld Instrumentation |
|---|---|
|
Use Scenario: Portable blood glucose analyzers powered by two AA/AAA alkaline cells with real-time LCD display and sensor biasing. IC Role / Device Role / Timing Role: Primary 3.3 V regulator supplying MCU, ADC, and electrochemical sensor interface; LBO triggers low-battery alert before measurement invalidation. Use Value: 50 mA output sustains peak sensor excitation current; <5 mVPP ripple prevents ADC offset drift; 0.05 µA shutdown preserves battery during storage. |
Use Scenario: Battery-operated multimeters and environmental sensors requiring stable 3.3 V for precision analog front-ends and wireless transceivers. IC Role / Device Role / Timing Role: Compact, inductorless DC/DC converter delivering clean 3.3 V to op-amps and RF ICs; EN pin enables microcontroller-controlled power cycling. Use Value: Push-pull topology eliminates magnetic EMI near sensitive analog inputs; MSOP-10 footprint fits tight PCB layouts; 35 µA IQ supports multi-year battery life. |
| Cordless Phones | MP3 Audio Players |
|
Use Scenario: DECT-based cordless handsets using two NiMH cells, requiring regulated 3.3 V for baseband processor and RF front-end during call setup and transmission. IC Role / Device Role / Timing Role: Main system power supply with low-battery warning routed to UI controller; LBO signal drives LED indicator and prompts user recharge. Use Value: 1.18 V LBI threshold aligns with NiMH cell discharge curve; auto-discharge ensures safe reset after battery removal; 200–400 kHz switching avoids audio band interference. |
Use Scenario: Flash-based MP3 players with OLED display, audio codec, and USB charging circuitry, operating from dual alkaline cells. IC Role / Device Role / Timing Role: Efficient 3.3 V rail generator supporting burst-mode audio playback and standby modes; EN pin enables dynamic power gating during sleep. Use Value: Pulse-skip mode reduces IQ to ~35 µA at light loads (display off), while constant-frequency mode delivers full 50 mA for DAC and headphone amp peaks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar charge pump DC/DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS60200DGSR | Same MSOP-10 package and pinout; rated for 100 mA output (vs. 50 mA) and identical low-battery detection | Supports higher-current loads (e.g., Bluetooth modules, brighter displays); requires same external capacitors but delivers greater peak power | Select TPS60200DGSR if system peak load exceeds 50 mA; verify thermal margin under sustained 100 mA operation |
| TPS60122DGSR | Higher efficiency (up to 92%), 100 mA output, same 3.3 V regulation, but uses different control architecture and lacks LBO auto-discharge timing spec | Better suited for longer runtime in high-duty-cycle applications; no guaranteed 0.6 ms auto-discharge - may require external discharge circuit | Choose TPS60122DGSR for efficiency-critical designs where battery life outweighs precise shutdown behavior; confirm LBO compatibility with host MCU |
Compared with TPS60202DGSR, TPS60200DGSR offers double the output current in identical form factor and feature set, while TPS60122DGSR trades guaranteed auto-discharge timing for higher efficiency and broader input range - making each suitable for distinct trade-offs in portable instrumentation versus consumer audio.
Availability
TPS60202DGSR is available at Aetrix Electronics and suitable for glucose meters, handheld instrumentation, cordless phones, and MP3 audio players requiring stable component supply with long-term lifecycle support.
Supply support for TPS60202DGSR 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 battery-efficient power conversion.
The TPS6020x product line was designed specifically for ultra-compact, low-noise DC/DC conversion in space- and power-constrained portable electronics - emphasizing minimal external components, low EMI, and intelligent battery monitoring.
FAQ
What is the maximum continuous output current of the TPS60202DGSR?
The TPS60202DGSR delivers up to 50 mA continuous output current when the input voltage is ≥2 V. At lower input voltages (e.g., 1.6 V), the maximum sustainable current decreases. This rating is confirmed in the Electrical Characteristics table (Section 7.5) of the SLVS274A datasheet and distinguishes TPS60202DGSR from the 100 mA-rated TPS60200DGSR and TPS60201DGSR variants.
Does the TPS60202DGSR include power-good (PG) functionality?
No, the TPS60202DGSR does not include power-good detection. It features low-battery detection (LBI/LBO pins) only. Power-good output (PG) is exclusive to TPS60201DGSR and TPS60203DGSR. The TPS60202DGSR pin 10 is LBO (open-drain low-battery output), not PG - confirmed by the Pin Functions table (Section 6) and Device Comparison Tables (Section 5) in the datasheet.
What is the purpose of the EN pin on the TPS60202DGSR?
The EN pin on the TPS60202DGSR serves three functions: logic-level enable/disable control (high = active, low = shutdown), external clock synchronization input (400–800 kHz), and initiation of automatic output capacitor discharge upon disable. During shutdown, EN = low isolates input from load and discharges CO within 0.6 ms - a key safety feature for battery-powered systems documented in Section 7.5 and 8.3.1 of the datasheet.
Can the TPS60202DGSR operate from a single 1.5 V alkaline cell?
No, the TPS60202DGSR requires a minimum input voltage of 1.6 V per the Recommended Operating Conditions (Section 7.3), and its regulated 3.3 V output cannot be sustained from a single 1.5 V cell - especially under load, where voltage sag occurs. It is explicitly designed for two-cell alkaline/NiMH/NiCd sources (2.0–3.0 V nominal), as stated in the Description (Section 3) and Typical Application diagrams.
What external capacitors are required for basic operation of the TPS60202DGSR?
The TPS60202DGSR requires four ceramic capacitors: 2.2 µF input capacitor (Ci) on IN-to-GND, two 1 µF flying capacitors (C1, C2) on C1± and C2± pairs, and 2.2 µF output capacitor (Co) on OUT-to-GND. X5R or X7R dielectrics are mandatory; Z5U/Y5V types are prohibited due to capacitance loss over temperature/voltage - specified in Section 9.1.1 and Table 3 of the datasheet.
TPS60202DGSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm 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):
- 1.6V
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 50mA
- Frequency - Switching:
- 300kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
TPS60202DGSR FAQ
1.How can I place an order for TPS60202DGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS60202DGSR 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 TPS60202DGSR reliable?
The price and inventory of TPS60202DGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS60202DGSR is usually 5 days.
3.What payment methods are accepted for TPS60202DGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS60202DGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS60202DGSR?
TPS60202DGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS60202DGSR 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 TPS60202DGSR?
For technical support, including TPS60202DGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS60202DGSR requirements.
6.How does Aetrix verify that TPS60202DGSR is sourced from the original manufacturer or authorized distributors?
All TPS60202DGSR 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 TPS60202DGSR meets industry standards.
7.What is the process for return or replacement of TPS60202DGSR?
All TPS60202DGSR units undergo pre-shipment inspection (PSI). If there is an issue with TPS60202DGSR, 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 TPS60202DGSR part is unused and in its original packaging.
Return procedure for TPS60202DGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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