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Analog Devices Inc. LTC3204EDC-5#TRMPBF
- Part No.:
- LTC3204EDC-5#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-WFDFN Exposed Pad
- Datasheet:
-
LTC3204EDC-5#TRMPBF.pdf
- Description:
- IC REG CHARGE PUMP 5V 150MA 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,001
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Product details
Overview
LTC3204EDC-5#TRMPBF from Analog Devices (formerly Linear Technology) is a fixed 5V, low-noise, constant-frequency switched-capacitor voltage doubler IC. It delivers up to 150mA output from 2.7V–5.5V input (e.g., single Li-Ion cell), operates at 1.2MHz switching frequency, features built-in soft-start and thermal/short-circuit protection, and is used in USB On-The-Go power rails and white LED drivers.
For engineers reviewing the LTC3204EDC-5#TRMPBF datasheet, LTC3204EDC-5#TRMPBF pinout, LTC3204EDC-5#TRMPBF application, or LTC3204EDC-5#TRMPBF equivalent, key selection criteria include regulated 5V output capability, 150mA load support, <1µA shutdown current, DFN-6 (2mm × 2mm) package compatibility, and Burst Mode vs constant-frequency variant differentiation.
Technical Context
The LTC3204EDC-5#TRMPBF implements a 2-phase nonoverlapping 1.2MHz charge pump topology with internal resistor-divider feedback for regulation. It uses flying capacitor charge/discharge cycling between VIN and VOUT to achieve voltage doubling, with closed-loop control modulating pump strength based on output error.
It supports two operating modes: automatic Burst Mode® (for low quiescent current at light loads) and constant-frequency operation across all loads - though LTC3204EDC-5#TRMPBF specifically corresponds to the Burst Mode variant per part marking and ordering information (LBJV/LBNK series), confirmed by its 60µA no-load input current and 20mA Burst Mode threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±4% (4.8V–5.2V); regulated output suitable for powering 5V logic or USB peripherals without external feedback. |
| Input Voltage Range | 2.7V to 5.5V; enables direct use with single-cell Li-Ion (3.0–4.2V) or 3.3V system rails. |
| Max Output Current | 150mA continuous; sufficient to drive multiple white LEDs or USB OTG host circuitry. |
| No-Load Input Current | 60µA typical; enables long battery life in standby mode for portable devices. |
| Shutdown Current | <1µA; disconnects load from input and minimizes leakage during system sleep. |
| Switching Frequency | 1.2MHz typical; allows use of tiny 2.2µF ceramic capacitors, reducing solution footprint vs lower-frequency charge pumps. |
| Output Ripple | 20mVP-P at 100mA load; low noise critical for noise-sensitive analog or RF subsystems. |
Pinout & Package
Package: 6-lead plastic DFN (2mm × 2mm, 0.75mm height) with exposed thermal pad (Pin 7, GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 7) | Ground reference and thermal path | Both pins must connect to solid PCB ground plane; exposed pad (Pin 7) is mandatory for thermal management and noise reduction. |
| VIN (Pin 2) | Input supply connection | Accepts 2.7V–5.5V; requires ≥2.2µF low-ESR ceramic bypass capacitor placed adjacent to pin. |
| VOUT (Pin 3) | Regulated 5V output | Delivers up to 150mA; requires ≥2.2µF low-ESR ceramic capacitor near pin for stability and ripple suppression. |
| C+ (Pin 4) | Flying capacitor positive terminal | Connects to positive side of 2.2µF flying capacitor; polarity reversal during operation prohibits polarized capacitors. |
| C− (Pin 5) | Flying capacitor negative terminal | Connects to negative side of 2.2µF flying capacitor; forms charge-transfer path with C+ and internal switches. |
| SHDN (Pin 6) | Active-low shutdown control | Logic low disables device and disconnects VOUT from VIN; threshold is 0.4V (low) / 1.3V (high); must not float. |
Key Features
| Feature | Design Value |
|---|---|
| Burst Mode® operation | Reduces no-load IQ to 60µA and eliminates switching losses at light loads, extending battery runtime in intermittent-use applications. |
| Integrated soft-start | Ramps output current over 0.75ms to limit inrush, preventing input rail droop and avoiding false brown-out detection in host systems. |
| Short-circuit & thermal protection | Current limits to ~300mA and cycles into/out of thermal shutdown above ~160°C junction temperature-no latch-up or damage under fault. |
| Low-noise 1.2MHz operation | Enables use of small 2.2µF ceramic capacitors and avoids audible noise or EMI in sensitive bands (e.g., audio, RF receivers). |
| Shutdown disconnect | Physically isolates VOUT from VIN during SHDN assertion, eliminating reverse current and enabling true load isolation in multi-rail systems. |
Applications
| USB On-The-Go Power Supply | Li-Ion to 5V White LED Driver |
|---|---|
Use Scenario: Providing regulated 5V power from a mobile device's Li-Ion battery to enable USB peripheral connectivity (e.g., keyboard, flash drive) in host mode. IC Role / Device Role / Timing Role: Voltage-doubling charge pump regulator generating stable 5V output with fast transient response to handle USB enumeration surges. Use Value: Eliminates need for inductor-based DC/DC converters, reducing BOM cost and PCB area while maintaining USB spec-compliant 5V ±5% tolerance. | Use Scenario: Driving 3–5 white LEDs (each ~3.2V, 20mA) from a single 3.6V nominal Li-Ion cell in compact handheld devices. IC Role / Device Role / Timing Role: Fixed-output charge pump delivering 5V with low ripple to LED anodes, with PWM brightness control applied via SHDN pin. Use Value: Achieves >82% efficiency at 100mA, avoids magnetic components, and supports analog/digital dimming without external MOSFETs. |
| Handheld Device Core Rail | Low-Power Microcontroller Auxiliary Supply |
Use Scenario: Generating clean 5V auxiliary supply for touch controllers, sensors, or interface ICs in battery-powered handheld instruments. IC Role / Device Role / Timing Role: Low-noise, low-quiescent-current voltage doubler supplying stable 5V independent of main system rail fluctuations. Use Value: 20mVP-P ripple and <1µA shutdown current ensure signal integrity and multi-week shelf life in always-on sensing nodes. | Use Scenario: Powering 5V-tolerant peripherals (e.g., UART transceivers, ADC references) from a 3.3V microcontroller board with limited board space. IC Role / Device Role / Timing Role: Compact, capacitor-only voltage booster providing isolated 5V rail without inductor EMI or layout sensitivity. Use Value: DFN-6 (2mm × 2mm) footprint fits tight spaces; 60µA no-load IQ preserves battery life during MCU sleep cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-doubling charge pump applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3204BEDC-5#TRMPBF | Constant-frequency operation at all loads (no Burst Mode); higher no-load IQ (3.6mA vs 60µA) | Better for noise-sensitive systems requiring deterministic 1.2MHz spectrum; unsuitable for ultra-low-power standby | Select when EMI filtering is prioritized over battery life, or when load is consistently >20mA |
| LTC3200-5ES6#TRMPBF | 2MHz switching frequency; 100mA max output; ThinSOT-6 package (3mm × 3mm) | Higher frequency enables smaller capacitors but reduces max current; larger footprint than DFN-6 | Choose when board space permits larger package and 100mA suffices, or when 2MHz operation better fits system EMI profile |
Compared with LTC3204BEDC-5#TRMPBF, LTC3204EDC-5#TRMPBF trades deterministic frequency for 60× lower no-load current-critical for battery longevity. Versus LTC3200-5ES6#TRMPBF, it offers +50mA output and 30% smaller footprint at the cost of 0.8MHz lower switching frequency.
Availability
LTC3204EDC-5#TRMPBF is available at Aetrix Electronics and suitable for USB On-The-Go power supplies, Li-Ion–to–5V LED drivers, and handheld device auxiliary rails requiring stable component supply, RoHS compliance, and full production traceability.
Supply support for LTC3204EDC-5#TRMPBF 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 acquired Linear Technology in 2017 and maintains its precision analog and power management portfolio with rigorous qualification and long-term product support.
The LTC3204 series belongs to Linear's low-noise switched-capacitor regulator product line, designed specifically for space-constrained, battery-powered applications where inductors are undesirable and clean 3.3V/5V rails are required from single-cell sources.
FAQ
What is the output voltage tolerance of the LTC3204EDC-5#TRMPBF?
The LTC3204EDC-5#TRMPBF provides a fixed 5.0V output with ±4% tolerance (4.8V to 5.2V) across its full operating range of 2.7V–5.5V input and 0–150mA load, as specified in the Electrical Characteristics table under VOUT parameter conditions.
Does the LTC3204EDC-5#TRMPBF support PWM brightness control for LEDs?
Yes-the LTC3204EDC-5#TRMPBF supports PWM dimming by applying a pulse waveform to the SHDN pin. Its fast turn-on/turn-off response (soft-start time = 0.75ms) enables smooth LED brightness adjustment without visible flicker at typical PWM frequencies (100Hz–10kHz).
What is the minimum input voltage required for the LTC3204EDC-5#TRMPBF to regulate 5V?
The LTC3204EDC-5#TRMPBF requires a minimum input voltage of 2.7V to maintain 5V regulation, as defined in its Absolute Maximum Ratings and Electrical Characteristics tables. Below 2.7V, output voltage drops below specification and regulation is lost.
Can I use tantalum capacitors for the flying capacitor in the LTC3204EDC-5#TRMPBF?
No-tantalum or aluminum electrolytic capacitors must never be used for the flying capacitor (C+ and C− pins) because voltage polarity reverses during charge-pump operation. Only low-ESR ceramic capacitors (e.g., 2.2µF X7R, 0603) are permitted to prevent catastrophic failure.
How does the Burst Mode® operation of the LTC3204EDC-5#TRMPBF reduce power consumption?
The LTC3204EDC-5#TRMPBF enters Burst Mode® when load current falls below ~20mA, shutting down its 1.2MHz oscillator and entering a low-power sleep state drawing only ~60µA. It wakes periodically to recharge the output capacitor, maintaining regulation while minimizing average input current-ideal for intermittent-load applications.
LTC3204EDC-5#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-WFDFN Exposed Pad
- 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):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 150mA
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (2x2)
LTC3204EDC-5#TRMPBF FAQ
1.How can I place an order for LTC3204EDC-5#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3204EDC-5#TRMPBF 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 LTC3204EDC-5#TRMPBF reliable?
The price and inventory of LTC3204EDC-5#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3204EDC-5#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC3204EDC-5#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3204EDC-5#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3204EDC-5#TRMPBF?
LTC3204EDC-5#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3204EDC-5#TRMPBF 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 LTC3204EDC-5#TRMPBF?
For technical support, including LTC3204EDC-5#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3204EDC-5#TRMPBF requirements.
6.How does Aetrix verify that LTC3204EDC-5#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC3204EDC-5#TRMPBF 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 LTC3204EDC-5#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC3204EDC-5#TRMPBF?
All LTC3204EDC-5#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3204EDC-5#TRMPBF, 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 LTC3204EDC-5#TRMPBF part is unused and in its original packaging.
Return procedure for LTC3204EDC-5#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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