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Analog Devices Inc. LTC3200EMS8#TRPBF
- Part No.:
- LTC3200EMS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC3200EMS8#TRPBF.pdf
- Description:
- IC REG CHRG PUMP ADJ 100MA 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,852
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Product details
Overview
LTC3200EMS8#TRPBF from Analog Devices (formerly Linear Technology) is a low-noise, constant-frequency switched-capacitor voltage doubler IC designed for regulated 5V output generation from 2.7V–4.5V inputs in space-constrained battery-powered systems. It delivers up to 100mA output current with 2MHz fixed switching frequency, no inductors, and built-in soft-start and thermal shutdown. It is used in Li-ion battery backup supplies and local 3V-to-5V conversion.
For engineers reviewing the LTC3200EMS8#TRPBF datasheet, LTC3200EMS8#TRPBF pinout, LTC3200EMS8#TRPBF application, or LTC3200EMS8#TRPBF equivalent, key selection criteria include its MS8 package footprint, ±4% output regulation at 5V, <1µA shutdown current, 2.7V–4.5V input range, and compatibility with ceramic flying/output capacitors for low ESR and ripple performance.
Technical Context
The LTC3200EMS8#TRPBF implements a 2-phase nonoverlapping charge-pump architecture that stacks a flying capacitor in series with VIN to generate a regulated 5V output. Regulation is achieved via internal resistor divider feedback (no external FB pin), enabling fixed-output operation without external resistors.
It maintains constant 2MHz switching frequency from zero load to full load, minimizing input/output ripple and simplifying EMI filtering. Built-in soft-start limits inrush current, while thermal shutdown and short-circuit protection (225mA limit, indefinite short-circuit survival) ensure robustness in portable and embedded applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5V ±4% - ensures stable 5V rail for USB peripherals or logic interfaces across input and load variations. |
| Input Voltage Range | 2.7V to 4.5V - matches single-cell Li-ion (fully charged to depleted) and 3.3V system rails with margin. |
| Max Output Current | 100mA at VIN ≥ 3.1V - supports moderate-power loads like white LED strings or microcontroller peripherals. |
| Switching Frequency | 2MHz (typ) - enables use of small 1µF ceramic capacitors for CFLY, CIN, and COUT, reducing board area. |
| Shutdown Current | <1µA - preserves battery life during system sleep modes without requiring external load switches. |
| Output Ripple | 30mVP-P at 100mA - meets noise-sensitive analog/RF supply requirements when paired with 1µF low-ESR ceramic COUT. |
| Efficiency | 80% at VIN = 3V, IOUT = 50mA - exceeds typical LDO efficiency for 3.3V→5V boosting, reducing thermal load. |
Pinout & Package
Package: 8-pin MSOP (MS8), 3.0mm × 3.0mm × 0.86mm body, exposed pad not present, RoHS-compliant, tape-and-reel (TRPBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 1) | Regulated output voltage node | Delivers 5V ±4% output; requires 1µF low-ESR ceramic bypass capacitor placed adjacent to pin for stability and ripple control. |
| GND (Pin 2) | Power ground reference | Primary return path for charge pump and internal circuitry; must connect to solid ground plane to minimize noise and thermal resistance. |
| SHDN (Pin 3) | Active-low shutdown control | CMOS input with ~0.8V threshold; drives low to disconnect VOUT from VIN and reduce ICC to <1µA; must never float. |
| C– (Pin 4) | Flying capacitor negative terminal | Connects to negative side of 1µF ceramic flying capacitor; polarity reversal occurs during operation-only non-polarized ceramics permitted. |
| VIN (Pin 5) | Input supply voltage | Accepts 2.7V–4.5V; requires 1µF low-ESR ceramic bypass capacitor near pin to suppress high-frequency switching transients. |
| C+ (Pin 6) | Flying capacitor positive terminal | Connects to positive side of 1µF ceramic flying capacitor; forms charge-transfer path with C– and internal switches. |
| FB (Pin 7) | Feedback input | Not connected internally on LTC3200EMS8#TRPBF - this is the adjustable LTC3200 variant; however, LTC3200EMS8#TRPBF is the fixed 5V version and does not use FB pin (pin left unconnected per datasheet). |
| PGND (Pin 8) | Power ground (separate from SGND) | Dedicated ground return for high-current charge-pump switching paths; improves PSRR and reduces ground bounce vs. signal ground. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 5V ±4% output | Eliminates need for external feedback resistors, simplifying BOM and layout for standard 5V rail generation. |
| No inductors required | Enables ultra-compact, low-profile designs using only ceramic capacitors-ideal for thin mobile and wearables PCBs. |
| 2MHz constant-frequency operation | Ensures predictable EMI profile and allows use of tiny 1µF ceramic capacitors instead of larger tantalum or electrolytics. |
| Thermal shutdown + short-circuit protection | Survives continuous VOUT-to-GND shorts and auto-recovers after junction cools below ~155°C-no latch-up or damage. |
| Soft-start with ~1ms ramp | Prevents input supply sag and inrush-induced reset events; start-up current scales linearly with COUT (e.g., 22mA for 2.2µF). |
Applications
| White LED Backlighting | Li-Ion Battery Backup Supplies |
|---|---|
Use Scenario: Powering 3–5 white/blue LEDs from a single Li-ion cell in handheld medical devices or barcode scanners. IC Role / Device Role / Timing Role: Regulated 5V charge-pump voltage source providing stable forward bias for LED strings with PWM brightness control applied to SHDN. Use Value: Eliminates inductor-based boost converters, reducing height and EMI; 2MHz operation avoids audible noise; ±4% output tolerance ensures consistent LED luminance. | Use Scenario: Generating clean 5V backup rail for real-time clocks or SRAM during main power failure in industrial controllers. IC Role / Device Role / Timing Role: Always-on, low-quiescent regulator that activates from Li-ion cell (2.7V–4.5V) to maintain critical 5V logic supply with <1µA shutdown draw. Use Value: Enables >1-year battery backup life; thermal/short-circuit protection prevents fault propagation; no inductor avoids magnetic coupling into sensitive timing circuits. |
| PCMCIA Local 5V Supplies | Smart Card Readers |
Use Scenario: Providing isolated 5V power to PCMCIA/CardBus peripherals in laptops or docking stations powered from 3.3V system rails. IC Role / Device Role / Timing Role: Compact, low-noise DC/DC converter generating compliant 5V±5% PCMCIA spec voltage from 3.3V–4.5V sources. Use Value: Meets PCMCIA 5V tolerance and ripple requirements (<50mVP-P) with 1µF ceramic caps; MS8 package fits tight card-edge layouts. | Use Scenario: Supplying regulated 5V to ISO 7816-compliant smart card interfaces in point-of-sale terminals or access control hardware. IC Role / Device Role / Timing Role: Low-noise, fast-turn-on voltage source meeting smart card power-up timing (tPU < 5ms) and voltage accuracy (5V±4%) specs. Use Value: Soft-start ensures controlled VCC ramp; 2MHz switching avoids interference with card clock signals; shutdown mode disables supply during card removal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar charge-pump voltage doubler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3200ES6-5 | Same electrical specs but in 6-pin ThinSOT-23 (S6) package; smaller footprint (2.9mm × 1.6mm), higher θJA (230°C/W), no PGND pin. | Better suited for ultra-dense layouts where height <1mm is critical; less thermal margin at 100mA; no separate power ground. | Select LTC3200ES6-5 when board area is constrained and thermal load is light; LTC3200EMS8#TRPBF preferred for sustained 100mA or noisy environments requiring PGND separation. |
| LTC1754ES6-5 | Lower max output current (50mA), higher shutdown current (13µA), same 5V fixed output and ThinSOT-23 package. | Targeted at lower-power smart cards or sensors; lacks thermal shutdown; optimized for cost over robustness. | Choose LTC1754ES6-5 only for sub-50mA loads where BOM cost is primary; LTC3200EMS8#TRPBF provides superior protection, efficiency, and current capability. |
Compared with LTC3200ES6-5 and LTC1754ES6-5, the LTC3200EMS8#TRPBF offers the highest output current (100mA), lowest shutdown current (<1µA), dedicated PGND for noise isolation, and full thermal/short-circuit protection-making it the most robust choice for industrial and battery-critical 5V generation.
Availability
LTC3200EMS8#TRPBF is available at Aetrix Electronics and suitable for white LED backlighting, Li-ion battery backup supplies, and PCMCIA local 5V supplies requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for LTC3200EMS8#TRPBF 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
Analog Devices, Inc. (ADI) is a global semiconductor leader delivering high-performance analog, mixed-signal, and digital signal processing solutions for industrial, automotive, communications, and healthcare applications.
The LTC3200EMS8#TRPBF belongs to ADI's legacy Linear Technology precision power management portfolio, engineered specifically for low-noise, inductorless DC/DC conversion in portable and space-constrained systems demanding reliability and minimal external components.
FAQ
What is the output voltage tolerance of the LTC3200EMS8#TRPBF?
The LTC3200EMS8#TRPBF provides a fixed 5V output with ±4% tolerance over the full operating temperature range (–40°C to 85°C) and input voltage range (2.7V to 4.5V). This specification is guaranteed under load conditions up to 100mA when VIN ≥ 3.1V, and up to 40mA when VIN ≥ 2.7V. The tolerance reflects total error including line, load, and temperature drift-no external components affect this value since regulation is fully internal.
Does the LTC3200EMS8#TRPBF require an external feedback resistor network?
No, the LTC3200EMS8#TRPBF does not require external feedback resistors. It is the fixed 5V version of the LTC3200 family and uses an internal resistor divider for regulation. Pin 7 (FB) is not connected internally and must be left unconnected on the PCB. In contrast, the adjustable LTC3200 variant (e.g., LTC3200EMS8) uses the FB pin with external resistors to set output voltage-this functionality is absent in the LTC3200EMS8#TRPBF.
Can the LTC3200EMS8#TRPBF operate with input voltages above 4.5V?
The absolute maximum input voltage for the LTC3200EMS8#TRPBF is 6V, but the recommended operating range is strictly 2.7V to 4.5V per datasheet specifications. Operation above 4.5V may cause output overvoltage at very light loads due to charge coupling, and efficiency degrades significantly. For reliable 5V regulation, VIN must remain within 2.7V–4.5V; exceeding this range voids parametric guarantees and risks thermal shutdown activation.
What is the minimum flying capacitor value required for the LTC3200EMS8#TRPBF?
The minimum recommended flying capacitor value for the LTC3200EMS8#TRPBF is 1µF, using a low-ESR X5R or X7R ceramic capacitor (e.g., Murata GRM39X5R105K6.3AJ). While the theoretical minimum is ~0.68µF, 1µF ensures full 100mA output capability across temperature and voltage, maintains loop stability, and minimizes output ripple. Polarized capacitors (tantalum, aluminum) are strictly prohibited due to voltage reversal during charge-pump cycling.
How does the LTC3200EMS8#TRPBF handle short-circuit conditions on VOUT?
The LTC3200EMS8#TRPBF features built-in short-circuit current limiting that caps output current at approximately 225mA during a VOUT-to-GND fault. It also includes thermal shutdown that disables the charge pump if junction temperature exceeds ~160°C, then automatically recovers once temperature falls to ~155°C. This allows indefinite short-circuit survival without latch-up or damage-confirmed by datasheet testing-and eliminates the need for external current-limiting circuitry in safety-critical designs.
LTC3200EMS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 4.5V
- Voltage - Output (Min/Fixed):
- 2.7V
- Voltage - Output (Max):
- 9V
- Current - Output:
- 100mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC3200EMS8#TRPBF FAQ
1.How can I place an order for LTC3200EMS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3200EMS8#TRPBF 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 LTC3200EMS8#TRPBF reliable?
The price and inventory of LTC3200EMS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3200EMS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3200EMS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3200EMS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3200EMS8#TRPBF?
LTC3200EMS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3200EMS8#TRPBF 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 LTC3200EMS8#TRPBF?
For technical support, including LTC3200EMS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3200EMS8#TRPBF requirements.
6.How does Aetrix verify that LTC3200EMS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3200EMS8#TRPBF 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 LTC3200EMS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3200EMS8#TRPBF?
All LTC3200EMS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3200EMS8#TRPBF, 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 LTC3200EMS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC3200EMS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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