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Diodes Incorporated ZXLB1600X10TA
- Part No.:
- ZXLB1600X10TA
- Manufacturer:
- Diodes Incorporated
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ZXLB1600X10TA.pdf
- Description:
- IC REG BOOST ADJ 800MA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,815
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Product details
Overview
ZXLB1600X10TA from Diodes Incorporated is a flyback-mode inductive switching boost converter designed for LCD and OLED display bias generation, featuring true shutdown isolation, adjustable 1.6–28 V output, 500 kHz switching, and internal PMOS/NMOS switches. It supports analog voltage, PWM, or resistor-based output control and delivers up to 10 mA at 28 V with 80% efficiency (VIN = 3 V, VOUT = 20 V).
For engineers reviewing the ZXLB1600X10TA datasheet, ZXLB1600X10TA pinout, ZXLB1600X10TA application, or ZXLB1600X10TA equivalent, key selection considerations include its MSOP-10 package, low-quiescent-current PFM operation (75 µA typ), integrated low-battery comparator (1.98 V threshold), and dual-mode EN-pin control for combined enable/output adjustment.
Technical Context
The ZXLB1600X10TA operates in discontinuous conduction mode with self-oscillating control: an internal NMOS switch (LX) charges the inductor until peak current reaches 150–350 mA, then energy transfers via external diode to the output capacitor. The control loop compares feedback from SENSE/FB pins against a 1.23 V reference to regulate output voltage.
Output voltage is set via three independent methods: (1) overdriving ADJ pin (1.23 V nominal ref, ±40 ppm/°C TC); (2) applying 10–100 kHz PWM to EN pin with internal 4 kHz LPF; or (3) shunting internal R1/R2 divider (317 kΩ / 6.93 MΩ) at FB pin. Low-battery detection remains active in shutdown using LBT-adjustable threshold (1.21 V ref, 20 mV hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.6 V to 5.5 V - supports dual alkaline, single Li-ion, and other portable battery sources. |
| Max Output Voltage | 28 V - sufficient for STN/CSTN LCD and monochrome OLED panel bias rails. |
| Switching Frequency | Up to 500 kHz - enables use of miniature surface-mount inductors (10–100 µH). |
| Quiescent Current | 30–75 µA - ensures high light-load efficiency in PFM mode for always-on display subsystems. |
| Output Current | 10 mA at 28 V - scalable down to higher currents (e.g., >20 mA) at lower output voltages. |
| Low-Battery Threshold | 1.94–2.02 V (±2%) - factory-set with external adjustability via LBT pin resistors. |
| Shutdown Current | 3.5–5 µA - includes active low-battery comparator, enabling reliable battery monitoring during sleep. |
Pinout & Package
Package: MSOP-10 (3 mm × 3 mm, 0.5 mm pitch), thermally enhanced for portable applications requiring minimal board area and efficient power delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 ADJ | Internal reference voltage node (1.23 V) | Overdrive point for analog output voltage control; sets VOUT = 22.86 × VADJ. |
| 2 EN | Active-high enable input | Controls device on/off state and serves as PWM input for filtered DC or gated output adjustment. |
| 3 VIN | Main power supply input | Accepts 1.6–5.5 V; powers internal circuitry and feeds high-side PMOS isolation switch (Pin 4). |
| 4 SW | High-side PMOS switch output | Connects coil to VIN in active mode; isolates coil from input in shutdown for true output disconnection. |
| 5 SENSE | Output voltage sense node | Monitors regulated output via internal R1/R2 divider; used with FB pin for precision feedback. |
| 6 LX | NMOS switch output | Drives inductor low-side; peak current limited to 150–350 mA; max operating voltage = VIN + 0.5 V. |
| 7 LBF | Open-drain low-battery flag | Active-low output indicating VIN ≤ 1.98 V; remains functional even when EN = 0 V. |
| 8 GND | Analog/digital ground reference | Common return for all internal circuits; requires low-impedance PCB connection to minimize noise. |
| 9 FB | Feedback voltage input (1.23 V threshold) | Allows external resistor network to override internal divider for custom output voltage setting. |
| 10 LBT | Low-battery threshold adjust | External resistor divider node to scale internal 1.21 V reference for user-defined battery cutoff. |
Key Features
| Feature | Design Value |
|---|---|
| True shutdown isolation | Internal PMOS switch disconnects coil from VIN, eliminating leakage paths and ensuring zero output coupling during sleep. |
| Triple-mode output control | Supports analog voltage (ADJ), PWM (EN), or resistor-divider (FB) methods-enabling flexible system-level integration without extra DACs or controllers. |
| Integrated low-battery monitor | Dedicated comparator with 20 mV hysteresis and externally adjustable threshold (via LBT) maintains accurate battery state awareness across temperature. |
| Self-oscillating PFM control | Adaptive frequency scaling reduces switching losses at light loads, sustaining >80% efficiency down to 100 µA output current. |
| Low external component count | Requires only one inductor, one Schottky diode, one output capacitor, and optional feedback resistors-reducing BOM cost and layout complexity. |
Applications
| Mobile Phone OLED Sub-Display Bias | Digital Camera LCD Backlight Driver |
|---|---|
|
Use Scenario: Powering monochrome OLED sub-displays in feature phones with single-cell Li-ion (3.0–4.2 V) input. IC Role / Device Role / Timing Role: Boost converter generating stable 18–22 V bias rail; uses EN-pin PWM for brightness control synchronized to display frame rate. Use Value: Eliminates need for separate brightness DAC and gate driver IC by integrating analog/PWM-adjustable regulation in one MSOP-10 package. |
Use Scenario: Driving STN LCD panels in compact digital cameras powered by two AA batteries (2.4–3.2 V). IC Role / Device Role / Timing Role: Flyback boost supplying 25–28 V bias; leverages PFM mode to maintain >75% efficiency at standby currents below 1 mA. Use Value: Enables long battery life in intermittent-use devices by minimizing quiescent draw while delivering full-panel brightness on demand. |
| GPS Terminal Display Power | Palmtop Computer LCD Bias |
|
Use Scenario: Providing regulated 20 V bias for reflective CSTN displays in GPS navigation units with wide-temperature operation (0–70 °C). IC Role / Device Role / Timing Role: Primary display power IC; uses LBT-adjustable low-battery detection to trigger UI warnings before critical voltage drop. Use Value: Ensures consistent contrast and readability across battery discharge curve without external supervision circuitry. |
Use Scenario: Generating 12–15 V bias for grayscale LCDs in legacy palmtop PCs using dual alkaline cells (2.0–3.0 V). IC Role / Device Role / Timing Role: Compact boost solution with internal switches and true shutdown-prevents battery drain during suspend-to-RAM states. Use Value: Reduces footprint vs. discrete boost designs while maintaining >80% efficiency at 5 mA load, extending usable runtime per charge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD/OLED bias boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP5727WUG-7 | Fixed 28 V output; no ADJ/EN analog control; 2.5–5.5 V input; 500 mA switch current rating. | Lacks programmable output and low-battery detection; suited for fixed-voltage bias where simplicity outweighs flexibility. | Select when output voltage is static and system-level brightness control is handled externally. |
| MAX1771ESA+ | Current-mode PWM controller (external MOSFETs); 2.7–16.5 V input; adjustable 5–30 V output; no integrated LBF. | Higher output current capability (>100 mA), but requires external power stage and additional components for battery monitoring. | Select when higher output power or design reuse of existing external FETs is required; not drop-in compatible. |
Compared with ZXLB1600X10TA, AP5727WUG-7 offers simpler fixed-output operation but forfeits analog/PWM adjustability and battery monitoring, while MAX1771ESA+ provides greater power scalability at the cost of increased BOM count and layout complexity.
Availability
ZXLB1600X10TA is available at Aetrix Electronics and suitable for mobile phone OLED sub-displays, digital camera LCD backlights, and GPS terminal displays requiring stable component supply with long-lifecycle support.
Supply support for ZXLB1600X10TA 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for portable and industrial electronics.
The ZXLB1600 belongs to Diodes' display bias power management product line, engineered specifically for low-power, high-voltage boost conversion in space-constrained handheld devices with battery-operated displays.
FAQ
Can ZXLB1600X10TA generate negative output voltages?
Yes-the device can be configured for negative output using an inverted flyback topology with external diode and capacitor repositioning, as documented in Application Note Section 12. This configuration leverages the same internal switch architecture and maintains regulation via the SENSE/FB feedback path, enabling dual-polarity bias rails from a single IC in compact display modules.
What is the minimum recommended inductor value for stable operation?
The ZXLB1600X10TA is optimized for 10 µH to 100 µH inductors; values below 10 µH risk exceeding the 10 µs maximum 'on' time limit due to insufficient ramp time (ILX(peak) × L / VIN), causing reduced output power and potential regulation loss. Coilcraft LP02506 series inductors are validated for stable performance across the full input/output range.
How does the internal low-pass filter affect EN-pin PWM control?
The internal 4 kHz low-pass filter converts EN-pin PWM into a smoothed DC control voltage applied to the error amplifier. At frequencies ≥10 kHz, this produces a regulated output equal to D × 28 V (D = duty cycle). Below 10 kHz, the device enters gated mode-turning fully on/off per EN pulse-with average output still proportional to D but exhibiting higher ripple.
Is external compensation required for loop stability?
No-ZXLB1600X10TA employs a self-oscillating, internally compensated control architecture. Stability is maintained across all specified input/output conditions and load ranges without external compensation components, simplifying design and reducing bill-of-materials for portable display power applications.
ZXLB1600X10TA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.6V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- ±1.6V
- Voltage - Output (Max):
- ±28V
- Current - Output:
- 800mA (Switch)
- Frequency - Switching:
- Up to 500kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
ZXLB1600X10TA FAQ
1.How can I place an order for ZXLB1600X10TA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXLB1600X10TA 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 ZXLB1600X10TA reliable?
The price and inventory of ZXLB1600X10TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXLB1600X10TA is usually 5 days.
3.What payment methods are accepted for ZXLB1600X10TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXLB1600X10TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXLB1600X10TA?
ZXLB1600X10TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXLB1600X10TA 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 ZXLB1600X10TA?
For technical support, including ZXLB1600X10TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXLB1600X10TA requirements.
6.How does Aetrix verify that ZXLB1600X10TA is sourced from the original manufacturer or authorized distributors?
All ZXLB1600X10TA 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 ZXLB1600X10TA meets industry standards.
7.What is the process for return or replacement of ZXLB1600X10TA?
All ZXLB1600X10TA units undergo pre-shipment inspection (PSI). If there is an issue with ZXLB1600X10TA, 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 ZXLB1600X10TA part is unused and in its original packaging.
Return procedure for ZXLB1600X10TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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