My Inquiry
My Account
Analog Devices Inc. LTC3525ESC6-5#TRPBF
- Part No.:
- LTC3525ESC6-5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LTC3525ESC6-5#TRPBF.pdf
- Description:
- IC REG BOOST 5V 175MA SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:13,742
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3525ESC6-5#TRPBF from Analog Devices (formerly Linear Technology) is a fixed-output 5V synchronous step-up DC/DC converter with output disconnect, designed for single- or dual-cell alkaline/NiMH and Li-ion battery-powered systems. It starts up from as low as 0.85V input, delivers up to 175mA at 5V from a 3V input, features 7µA quiescent current in Burst Mode®, and integrates 0.4Ω NMOS and 0.7Ω PMOS switches in a 6-lead SC70 package.
For engineers reviewing the LTC3525ESC6-5#TRPBF datasheet, LTC3525ESC6-5#TRPBF pinout, LTC3525ESC6-5#TRPBF application, or LTC3525ESC6-5#TRPBF equivalent, key selection criteria include ultralow startup voltage (0.85V), output disconnect capability, thermal shutdown protection, antiringing control, and compatibility with minimal external components (inductor + two capacitors).
Technical Context
The LTC3525ESC6-5#TRPBF employs a hysteretic Burst Mode® control architecture with adaptive peak/valley inductor current regulation-reducing peak current to 150mA at light loads for efficiency and scaling to 400mA under heavy load. Its internal power switches enable synchronous rectification, eliminating external Schottky diodes while maintaining regulation even when VIN ≥ VOUT (though with reduced efficiency and current capability).
Startup uses a dedicated oscillator enabling operation from 0.85V; once VOUT exceeds VIN by ≥0.2V and either rail exceeds 1.8V, it transitions to normal synchronous mode. Output disconnect is active during shutdown (SHDN < 0.4V), isolating VOUT from VIN to prevent inrush and ensure zero-load leakage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.00V ±3% (guaranteed over –40°C to 85°C junction temperature) |
| Input Start-Up Voltage | 0.85V minimum - enables direct start from single alkaline/NiMH cell |
| Quiescent Current | 7µA typical in Burst Mode® - maximizes battery runtime in standby |
| Shutdown Current | <1µA - ensures near-zero system leakage when disabled |
| Peak Switch Current | 400mA maximum - supports up to 175mA output at 5V from 3V input |
| Switch On-Resistance | NMOS: 0.4Ω, PMOS: 0.7Ω - minimizes conduction loss and improves light-load efficiency |
| Efficiency | Up to 95% at optimal load - exceeds charge pump alternatives in single-cell applications |
Pinout & Package
Package: 6-Lead Plastic SC70 (SC6), 1.0mm max height, footprint compatible with JEDEC MO-203 AB and EIAJ SC-70 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SHDN | Logic-Controlled Shutdown Input | Pull <0.4V to disable; pull >1V to enable; must avoid 0.5V–1V above VIN/VOUT to prevent test mode activation |
| 2 - GND | Ground Reference (Pin 2) | Primary ground connection; shared with Pin 5 for low-impedance return path |
| 3 - VIN | Input Supply Voltage | Powered from VIN until VOUT > VIN + 0.2V; requires ≥1µF ceramic bypass capacitor |
| 4 - VOUT | Regulated Output & Sense Node | Delivers fixed 5V; connects to ≥10µF ceramic output capacitor; disconnects from VIN during shutdown |
| 5 - GND | Ground Reference (Pin 5) | Secondary ground pin; used with Pin 2 to reduce ground loop impedance |
| 6 - SW | Internal Switch Node | Connects to inductor; includes integrated antiringing resistor to suppress EMI at zero-current crossing |
Key Features
| Feature | Design Value |
|---|---|
| Output Disconnect | True VOUT–VIN isolation during shutdown eliminates inrush and enables zero-load leakage |
| Burst Mode® Operation | 7µA IQ maintains high efficiency down to µA-level loads without audible switching noise |
| Synchronous Rectification | Integrated 0.4Ω NMOS / 0.7Ω PMOS replaces external Schottky diode, improving efficiency by ~10% |
| Antiringing Control | On-chip resistor across SW–VIN damps LC ringing at switch turn-off, reducing EMI emissions |
| Thermal Shutdown | Protects against sustained overload; activates above 125°C junction temperature |
| Low-Profile SC70 Package | 1.0mm max height enables ultra-thin portable designs such as glucose meters and digital cameras |
Applications
| Portable Medical Devices | Digital Cameras |
|---|---|
Use Scenario: Powering CMOS image sensors and flash LEDs from a single 1.5V alkaline cell in compact point-and-shoot cameras. IC Role / Device Role / Timing Role: Synchronous boost converter providing regulated 5V rail with output disconnect to isolate sensor supply during sleep. Use Value: Enables 175mA peak delivery at 5V from 3V input while maintaining 95% efficiency and sub-1µA shutdown current. |
Use Scenario: Supplying 5V to SD card interfaces and LCD backlights in battery-constrained handheld imaging devices. IC Role / Device Role / Timing Role: Fixed-output step-up regulator with burst-mode control ensuring stable voltage during intermittent high-current bursts. Use Value: Delivers up to 140mA at 3.3V from 1.8V input (LTC3525-3.3 variant), but LTC3525ESC6-5#TRPBF supports 5V rail for higher-power peripherals. |
| Glucose Meters | MP3 Players |
Use Scenario: Generating precise 5V bias for electrochemical sensor signal conditioning circuits powered by coin-cell or AAA batteries. IC Role / Device Role / Timing Role: Micropower DC/DC converter with output disconnect preventing sensor contamination during measurement idle periods. Use Value: 0.85V startup allows operation down to end-of-life battery voltage; 7µA quiescent current extends single-battery life beyond 1 year. |
Use Scenario: Providing clean 5V supply to audio DACs and flash memory in ultra-portable music players using single alkaline cells. IC Role / Device Role / Timing Role: High-efficiency synchronous boost IC minimizing heat generation and maximizing runtime between charges. Use Value: Achieves 95% peak efficiency with only three external components-reducing BOM cost and PCB area vs. charge-pump alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3529 | Higher output current (1.5A), 1.5MHz switching, no output disconnect, DFN-8 package | Requires external diode for reverse isolation; better suited for higher-power, non-battery-critical systems | Select LTC3529 when >175mA continuous 5V output is required and output disconnect is not mandatory |
| LTC3429B | Same SC70 package, 600mA peak switch current, 500kHz fixed frequency, output disconnect enabled | Supports wider input range (1V–4.5V); lower efficiency at light loads due to fixed-frequency operation | Choose LTC3429B for higher output current needs while retaining SC70 footprint and output disconnect |
Compared with LTC3525ESC6-5#TRPBF, LTC3429B offers higher current headroom and same package benefits but trades off Burst Mode® efficiency for fixed-frequency predictability; LTC3529 provides significantly greater power delivery but sacrifices output disconnect and increases board area.
Availability
LTC3525ESC6-5#TRPBF is available at Aetrix Electronics and suitable for portable medical devices, digital cameras, glucose meters, and MP3 players requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for LTC3525ESC6-5#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 acquired Linear Technology in 2017 and maintains its precision analog and power management product lines with full technical documentation and long-term support.
The LTC3525ESC6-5#TRPBF belongs to Linear's micropower synchronous boost converter family, engineered specifically for ultra-low-voltage battery-powered applications where startup from 0.85V, output disconnect, and sub-10µA quiescent current are critical.
FAQ
What is the minimum input voltage required for LTC3525ESC6-5#TRPBF to start up?
The LTC3525ESC6-5#TRPBF starts up from an input voltage as low as 0.85V, enabling reliable operation from nearly depleted single-cell alkaline or NiMH batteries. This specification is guaranteed across the full operating junction temperature range of –40°C to 85°C and is validated per Linear Technology's characterization data.
Does LTC3525ESC6-5#TRPBF provide true output disconnect during shutdown?
Yes, the LTC3525ESC6-5#TRPBF provides true output disconnect: when SHDN is pulled below 0.4V, the internal PMOS switch opens, physically isolating VOUT from VIN. This prevents inrush current and ensures VOUT decays only through the load, delivering <1µA shutdown current.
What external components are required for basic operation of LTC3525ESC6-5#TRPBF?
The LTC3525ESC6-5#TRPBF requires only three external components: a 10µH inductor (e.g., Murata LQH32CN100K53), a 1µF ceramic input capacitor on VIN–GND, and a 10µF ceramic output capacitor on VOUT–GND. A 22µF output capacitor is recommended to reduce ripple below 60mVPP at full load.
How does LTC3525ESC6-5#TRPBF manage efficiency across varying load conditions?
The LTC3525ESC6-5#TRPBF dynamically adjusts peak inductor current from 150mA at light loads to 400mA at full load via its Burst Mode® architecture. This reduces conduction losses when current demand is low while maintaining regulation under heavy load-achieving up to 95% efficiency across 1mA–175mA output range.
Is LTC3525ESC6-5#TRPBF compatible with Li-ion battery inputs?
Yes, the LTC3525ESC6-5#TRPBF supports Li-ion battery inputs (3.0V–4.2V). When VIN ≥ VOUT (e.g., 3.3V+ input to 5V output), it operates in "VIN ≥ VOUT mode" with the synchronous rectifier disabled-maintaining regulation but with reduced efficiency and lower output current capability than standard boost operation.
LTC3525ESC6-5#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1V
- Voltage - Input (Max):
- 4.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 175mA
- Frequency - Switching:
- -
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
LTC3525ESC6-5#TRPBF FAQ
1.How can I place an order for LTC3525ESC6-5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3525ESC6-5#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 LTC3525ESC6-5#TRPBF reliable?
The price and inventory of LTC3525ESC6-5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3525ESC6-5#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3525ESC6-5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3525ESC6-5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3525ESC6-5#TRPBF?
LTC3525ESC6-5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3525ESC6-5#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 LTC3525ESC6-5#TRPBF?
For technical support, including LTC3525ESC6-5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3525ESC6-5#TRPBF requirements.
6.How does Aetrix verify that LTC3525ESC6-5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3525ESC6-5#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 LTC3525ESC6-5#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3525ESC6-5#TRPBF?
All LTC3525ESC6-5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3525ESC6-5#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 LTC3525ESC6-5#TRPBF part is unused and in its original packaging.
Return procedure for LTC3525ESC6-5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3525ESC6-5#TRPBF Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
