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Vishay Siliconix SIP1759DH-T1-E3
- Part No.:
- SIP1759DH-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
SIP1759DH-T1-E3.pdf
- Description:
- IC REG CHRG PUMP ADJ/2.5V 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,703
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Product details
Overview
SIP1759DH-T1-E3 from Vishay Siliconix is a buck-boost regulating charge pump IC designed for portable battery-powered systems. It delivers a regulated 3.3 V fixed or adjustable 2.5–5.5 V output from 1-cell Li-ion (1.6–5.5 V) or 2–3-cell NiMH/alkaline inputs, supports up to 100 mA load, features 60 µA quiescent current and <1 µA shutdown current, and operates across –40 °C to +85 °C.
For engineers reviewing the SIP1759DH-T1-E3 datasheet, SIP1759DH-T1-E3 pinout, SIP1759DH-T1-E3 application, or SIP1759DH-T1-E3 equivalent, key selection criteria include input voltage range (1.6–5.5 V), output regulation mode (fixed vs. adjustable), ERROR flag functionality, MSOP-10 thermal performance, and charge-pump topology suitability for low-noise, low-quiescent-current portable power rails.
Technical Context
The SIP1759DH-T1-E3 implements a dual-mode charge-pump architecture: in boost mode (VIN < VOUT), it functions as a regulated voltage doubler using external CX+ and CX– terminals; in buck mode (VIN > VOUT), CX– is internally tied to PGND and CX+ switches between VIN and VOUT. Mode selection is automatic and load-dependent, with seamless transition when VIN ≥ VOUT + 1 V under heavy load.
It integrates undervoltage lockout (1.0 V typical trip), thermal shutdown (160 °C with 20 °C hysteresis), short-circuit foldback limiting (110 mA), and an open-drain ERROR output that asserts low when FB falls below 1.1 V - enabling system-level fault monitoring without external comparators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.6 V to 5.5 V - supports direct connection to single Li-ion or multi-cell alkaline/NiMH batteries without pre-regulation. |
| Output Voltage | Fixed 3.3 V or adjustable 2.5 V–5.5 V - selectable via FB pin grounding (fixed) or external resistor divider (adjustable). |
| Max Output Current | 100 mA - sufficient for powering low-power microcontrollers, sensors, and RF transceivers in portable devices. |
| Quiescent Current | 60 µA - enables >1-year battery life in always-on sensor nodes powered by 200 mAh coin cells. |
| Shutdown Current | <1 µA - ensures negligible drain during deep sleep or storage modes. |
| Switching Frequency | 1.2–1.8 MHz - allows use of small 0.33 µF ceramic charge-pump capacitor and reduces EMI compared to sub-MHz regulators. |
| Operating Temperature | –40 °C to +85 °C - qualified for industrial-grade handheld and medical portable equipment. |
Pinout & Package
Package: MSOP-10 (JEDEC MO-187, variation AA/BA), 3.0 mm × 4.9 mm footprint, exposed pad for thermal dissipation, rated for 444 mW at TA = 70 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - ERROR | Open-drain fault flag | Asserts low when FB voltage drops below 1.1 V - directly interfaces with MCU GPIO or supervisor IC for real-time output regulation monitoring. |
| 2 - SD | Active-low shutdown control | Pulling low disables all internal circuitry and disconnects VOUT from input - enables system-level power gating with <1 µA standby draw. |
| 3, 4 - VIN | Main power input | Dual-pin configuration lowers IR drop and improves current sharing - supports up to 100 mA input current with minimal voltage sag. |
| 5 - GND | Analog ground reference | Separate from PGND to minimize noise coupling into feedback and error sensing circuits - critical for stable regulation under dynamic loads. |
| 6 - PGND | Power ground return | Provides dedicated low-impedance path for charge-pump switching currents - prevents ground bounce from affecting regulation accuracy. |
| 7 - CX– | Negative charge-pump capacitor terminal | Connected to negative side of 0.33 µF ceramic capacitor - forms flying capacitor node essential for voltage doubling operation. |
| 8 - CX+ | Positive charge-pump capacitor terminal | Swings between VIN and VOUT depending on operating mode - drives energy transfer during both buck and boost cycles. |
| 9 - VOUT | Regulated output | Delivers stable 3.3 V (fixed) or user-set voltage - capable of sourcing full 100 mA while maintaining ±4.5% regulation over temperature and line/load. |
| 10 - FB | Feedback input | Internally biased to 1.235 V - tied to GND for fixed 3.3 V mode; connected to resistive divider for adjustable output - sets output via VOUT = 1.235 × (1 + R1/R2). |
Key Features
| Feature | Design Value |
|---|---|
| Auto-switching buck-boost topology | Eliminates need for separate boost/buck converters - simplifies BOM and PCB layout while maintaining regulation whether VIN is above or below VOUT. |
| Integrated ERROR flag with 1.1 V threshold | Provides deterministic, rail-independent fault detection - avoids external comparator and reduces component count in space-constrained designs. |
| Thermal shutdown with 20 °C hysteresis | Prevents permanent damage during sustained overload or poor heatsinking - ensures safe restart once die cools below 140 °C. |
| Soft-start and short-circuit foldback | Limits inrush current at startup and caps output current at 110 mA during hard shorts - protects external capacitors and prevents system brownouts. |
| MSOP-10 with exposed thermal pad | Enables 444 mW power dissipation at 70 °C ambient - supports continuous 100 mA operation in compact handheld enclosures without forced airflow. |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via BLE every 5 seconds. IC Role / Device Role / Timing Role: Primary 3.3 V power rail regulator for MCU, radio, and analog front-end - maintains stable supply despite Li-ion voltage decay from 4.2 V to 3.0 V. Use Value: 60 µA quiescent current extends 200 mAh coin cell life beyond 18 months; ERROR flag alerts host MCU of impending brownout before regulation loss. | Use Scenario: Handheld pulse oximeter using 2× AA alkaline cells (2.0–3.2 V) to power optical sensor, ADC, and display driver. IC Role / Device Role / Timing Role: Buck-boost regulator delivering constant 3.3 V to precision analog circuitry and digital logic - compensates for battery voltage sag under 50 mA pulsed LED loads. Use Value: Auto-mode switching ensures uninterrupted operation across full battery discharge curve; thermal shutdown prevents overheating during extended measurement sessions. |
| Industrial Handheld Scanner | Backup Power Supply |
Use Scenario: Rugged barcode scanner powered by removable 3.7 V Li-ion pack, requiring reliable 3.3 V for CMOS image sensor and laser driver. IC Role / Device Role / Timing Role: Main DC-DC converter supplying regulated 3.3 V rail - handles rapid load transients during laser activation and image capture bursts. Use Value: 100 mA capability and 1.5 MHz switching enable fast transient response (<100 µs recovery); SD pin allows MCU-controlled power cycling between scans. | Use Scenario: SRAM backup circuit in embedded controller where main supply may fail unexpectedly. IC Role / Device Role / Timing Role: Low-quiescent boost converter maintaining 3.3 V to SRAM during main rail dropout - activated only when primary supply falls below UVLO threshold. Use Value: <1 µA shutdown current preserves backup battery for years; ERROR signal triggers early warning before data retention is compromised. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost charge-pump regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17222ETA+T | Inductor-based synchronous buck-boost; 400 mA output; 1.8 V–5.5 V input; no ERROR pin. | Higher output current but larger solution size due to inductor; lacks integrated fault reporting. | Select when >100 mA load or tighter output ripple is required; avoid if ERROR monitoring or ultra-small footprint is critical. |
| TPS63020DSJR | Inductor-based buck-boost; 2 A output; 1.8 V–5.5 V input; I²C programmable; no ERROR pin. | Orders-of-magnitude higher current capability; requires external inductor and programming interface; no native fault flag. | Choose for high-power portable systems needing programmability and scalability; not suitable for space- or cost-sensitive 100 mA applications. |
Compared with MAX17222ETA+T and TPS63020DSJR, SIP1759DH-T1-E3 offers the smallest total solution size (capacitor-only), lowest quiescent current, and integrated ERROR signaling - making it optimal for ultra-compact, low-power, fault-aware portable electronics where inductor-free design is prioritized over peak current capability.
Availability
SIP1759DH-T1-E3 is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, industrial handheld scanners, and backup power supplies requiring stable component supply with guaranteed long-term availability.
Supply support for SIP1759DH-T1-E3 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
Vishay Siliconix is a global semiconductor manufacturer specializing in discrete components and power ICs, with leadership in MOSFETs, diodes, optoelectronics, and high-efficiency power management solutions.
The SiP1759 product line was engineered specifically for ultra-low-power, capacitor-based DC-DC conversion in space-constrained portable electronics - targeting applications where inductor-free design, minimal quiescent current, and intelligent fault reporting are mandatory.
FAQ
What is the function of the ERROR pin on the SIP1759DH-T1-E3?
The ERROR pin on the SIP1759DH-T1-E3 is an open-drain output that pulls low when the feedback voltage (FB) falls below 1.1 V, indicating loss of output regulation. It requires an external pull-up resistor (10 kΩ to 1 MΩ) to VOUT or another logic rail. This pin enables real-time health monitoring of the SIP1759DH-T1-E3 output without additional circuitry - critical for battery-powered systems where undetected regulation failure could corrupt data or disable communication.
Can the SIP1759DH-T1-E3 be used with a 2-cell alkaline battery input?
Yes, the SIP1759DH-T1-E3 supports input voltages from 1.6 V to 5.5 V, fully covering the 2-cell alkaline range (2.0 V to 3.2 V fresh, down to ~1.8 V per cell). Its buck-boost architecture maintains regulation even as battery voltage decays below the 3.3 V output - unlike standard LDOs or buck-only regulators. The SIP1759DH-T1-E3 also includes undervoltage lockout (1.0 V typical) to prevent erratic behavior near end-of-life.
How do I configure the SIP1759DH-T1-E3 for fixed 3.3 V output?
To configure the SIP1759DH-T1-E3 for fixed 3.3 V output, connect the FB pin (pin 10) directly to GND (pin 5). This selects the internal 1.235 V feedback reference and resistor divider, eliminating external components. The SIP1759DH-T1-E3 then delivers a tightly regulated 3.3 V ±4.5% over temperature and load - verified across 1 mA to 100 mA and –40 °C to +85 °C.
What external components are required for basic operation of the SIP1759DH-T1-E3?
For basic operation, the SIP1759DH-T1-E3 requires three ceramic capacitors: 10 µF input capacitor (CIN) between VIN and GND, 10 µF output capacitor (COUT) between VOUT and PGND, and 0.33 µF flying capacitor (CX) between CX+ and CX–. No inductor is needed. Optional components include a pull-up resistor on ERROR and a 10 kΩ–100 kΩ divider on FB for adjustable output - all values specified in the official Vishay datasheet for SIP1759DH-T1-E3.
Does the SIP1759DH-T1-E3 support automatic mode switching between buck and boost?
Yes, the SIP1759DH-T1-E3 automatically switches between buck and boost modes based on input voltage, output voltage, and load conditions - no external control required. When VIN < VOUT, it operates as a regulated charge-pump doubler; when VIN > VOUT, it functions as a step-down gated switch. The SIP1759DH-T1-E3 transitions seamlessly, even under heavy load, ensuring uninterrupted regulation across the full 1.6–5.5 V input range.
SIP1759DH-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Adjustable (Fixed)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.6V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.5V (3.3V)
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 100mA
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
SIP1759DH-T1-E3 FAQ
1.How can I place an order for SIP1759DH-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP1759DH-T1-E3 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 SIP1759DH-T1-E3 reliable?
The price and inventory of SIP1759DH-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP1759DH-T1-E3 is usually 5 days.
3.What payment methods are accepted for SIP1759DH-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP1759DH-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP1759DH-T1-E3?
SIP1759DH-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP1759DH-T1-E3 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 SIP1759DH-T1-E3?
For technical support, including SIP1759DH-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP1759DH-T1-E3 requirements.
6.How does Aetrix verify that SIP1759DH-T1-E3 is sourced from the original manufacturer or authorized distributors?
All SIP1759DH-T1-E3 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 SIP1759DH-T1-E3 meets industry standards.
7.What is the process for return or replacement of SIP1759DH-T1-E3?
All SIP1759DH-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP1759DH-T1-E3, 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 SIP1759DH-T1-E3 part is unused and in its original packaging.
Return procedure for SIP1759DH-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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