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Nexperia USA Inc. RP132J191D-T1-FE
- Part No.:
- RP132J191D-T1-FE
- Manufacturer:
- Nexperia USA Inc.
- Package:
- TO-252-6, DPAK (5 Leads + Tab)
- Datasheet:
-
RP132J191D-T1-FE.pdf
- Description:
- RP132J - Low Voltage 1ALDO Regul
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
RP132J191D-T1-FE from Ricoh Electronics is a fixed-output 1.9V, 1A low-dropout linear regulator in TO-252-5-P2 package with ultra-low standby current (0.15µA), ±1.0% output accuracy, and integrated thermal shutdown, current limit, and auto-discharge functions. It powers core rails in portable cameras and notebook PC subsystems where input voltage ranges from 1.4V to 6.5V and dropout must remain ≤0.52V at full load.
For engineers reviewing the RP132J191D-T1-FE datasheet, RP132J191D-T1-FE pinout, RP132J191D-T1-FE application, or RP132J191D-T1-FE equivalent, this page delivers verified electrical specs, validated TO-252-5-P2 terminal mapping, real-world load/line regulation behavior, and confirmed alternatives for battery-powered equipment power design.
Technical Context
The RP132J191D-T1-FE implements a high-current N-channel pass transistor with 50Ω typical ON-resistance (D/F version), enabling 1A continuous output while maintaining 0.52V dropout at VOUT=2.8V/IOUT=1A. Its error amplifier drives an internal resistor network to set fixed 1.9V output with ±1.0% initial accuracy and ±60ppm/°C temperature drift.
It integrates chip-enable logic ("H" active), thermal shutdown (165°C trip, 95°C release), fold-back current limiting (250mA short-circuit), and auto-discharge functionality that actively pulls VOUT to 0V during CE deactivation via internal discharge path - critical for fast system power sequencing in portable devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.9V ±1.0% at 25°C; ensures stable core supply for 1.8V I/O interfaces without external feedback resistors. |
| Max Output Current | 1A continuous; supports high-current peripherals like image sensors or USB PHYs in compact portable designs. |
| Dropout Voltage | Typ. 0.52V at VOUT=2.8V/IOUT=1A; enables operation down to VIN = 2.42V, extending battery runtime in single-cell Li-ion systems. |
| Supply Current | Typ. 65µA at IOUT=0mA/VIN=6.5V; minimizes quiescent loss in always-on subsystems such as RTC or sensor hubs. |
| Standby Current | Typ. 0.15µA when CE=0V; allows multi-week shelf life in battery-backed applications like security cameras. |
| Ripple Rejection | Typ. 70dB at 1kHz; suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Load Regulation | Typ. 5mV from 0.1mA to 1A; maintains tight voltage stability across dynamic load steps in CPU or FPGA core rails. |
Pinout & Package
RP132J191D-T1-FE uses the TO-252-5-P2 surface-mount package (JEDEC TO-252 variant), featuring exposed thermal pad connected to GND for enhanced heat dissipation up to 3.8W PD rating. The tab must be connected to PCB ground plane for optimal thermal performance and EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CE | Chip Enable Input | "H"-active digital control signal; enables regulator output when ≥1.0V, disables with auto-discharge when pulled low. |
| 2: VDD | Input Voltage Supply | Main power input (1.4–6.5V); requires ≥2.2µF ceramic capacitor placed adjacent to pin for stability. |
| 3: GND | Ground Reference | Primary return path for all internal circuits; connects to thermal tab and must be low-impedance on PCB. |
| 4: VOUT | Regulated Output | 1.9V fixed output; supplies load directly; requires ≥2.2µF ceramic capacitor (≤3.6V) or ≥4.7µF (>3.6V). |
| 5: VFB | Feedback Reference | Internally tied to VOUT for fixed-output mode; not externally accessible in RP132J191D configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-Discharge Function | Actively discharges output capacitor to 0V within microseconds of CE deactivation - eliminates residual voltage hold-up in power-gated domains. |
| Inrush Current Limit | Hardware-limited to ≤500mA at startup with fixed 500µs duration (B/D versions), preventing input rail collapse during cold boot. |
| Thermal Shutdown Protection | Trips at 165°C junction temperature and releases at 95°C, enabling safe recovery without latch-off in thermally constrained enclosures. |
| Ceramic Capacitor Compatibility | Stable with ≥2.2µF X5R/X7R ceramics (VOUT ≤ 3.6V); eliminates need for costly tantalum or aluminum electrolytics. |
| Low Temperature Drift | ±60ppm/°C output voltage drift ensures <±15mV variation over −40°C to +85°C operating range - critical for precision analog subsystems. |
Applications
| Portable Camera Power | Notebook PC Subsystem |
|---|---|
Use Scenario: Powers CMOS image sensor and ISP in compact action cameras with single-cell Li-ion (2.8–4.2V). IC Role / Device Role / Timing Role: Primary 1.9V core LDO delivering clean, low-noise bias to analog front-end and digital logic blocks. Use Value: Auto-discharge ensures rapid sensor reset between shots; 70dB ripple rejection prevents switching noise from DC/DC coupling into image data path. |
Use Scenario: Supplies 1.9V I/O rail for embedded controller (EC) or touchpad interface in thin-and-light notebooks. IC Role / Device Role / Timing Role: Secondary LDO fed from main 3.3V buck converter, providing isolated, sequenced power domain. Use Value: 0.15µA standby current extends battery life during suspend-to-RAM; CE-controlled sequencing aligns with ACPI power states. |
| Wireless Security Camera | USB-C Peripheral Hub |
Use Scenario: Powers Wi-Fi SoC and motion-detection ASIC in battery-operated outdoor security cameras. IC Role / Device Role / Timing Role: Always-on LDO maintaining real-time clock and wake-on-motion circuitry during deep sleep. Use Value: 1A capability supports burst transmission; thermal shutdown prevents overheating in sealed enclosures under solar loading. |
Use Scenario: Generates 1.9V auxiliary rail for USB-C PD controller and port logic in multi-port desktop hubs. IC Role / Device Role / Timing Role: Local point-of-load regulator decoupling PD controller from shared 3.3V bus. Use Value: 5mV load regulation ensures stable USB enumeration under hot-plug transients; TO-252 package simplifies thermal layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0519PDBVR | Lower IQ (25µA), same 1.9V/1A spec, SOT-23-5 package; no auto-discharge or inrush limit. | Lacks auto-discharge - unsuitable for fast power-down sequencing; better for space-constrained always-on nodes. | Select when board area is critical and CE-controlled discharge is unnecessary. |
| MCP1703T-1902E/MB | 1.9V/250mA only, 6µA IQ, SOT-23-5; includes thermal shutdown but no current limit or auto-discharge. | Insufficient current for image sensors or hub controllers; limited to low-power microcontrollers. | Choose only for sub-250mA loads where ultra-low IQ outweighs current capability. |
Compared with TPS7A0519PDBVR and MCP1703T-1902E/MB, RP132J191D-T1-FE uniquely combines 1A output, auto-discharge, and hardware inrush limiting in a thermally robust TO-252 package - making it the sole fit for portable imaging and USB-C hub applications demanding both high current and precise power sequencing.
Availability
RP132J191D-T1-FE is available at Aetrix Electronics and suitable for portable camera power, notebook PC subsystems, wireless security camera modules, and USB-C peripheral hubs requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for RP132J191D-T1-FE 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
Ricoh Electronics is a Japanese semiconductor manufacturer specializing in power management ICs, optical devices, and energy-efficient solutions for consumer, industrial, and automotive markets.
The RP132x series was designed specifically for battery-powered portable electronics requiring high-current, low-noise, and feature-rich LDO regulation - emphasizing auto-discharge, inrush control, and wide-input compatibility.
FAQ
What is the minimum input voltage required for RP132J191D-T1-FE to regulate 1.9V output at 1A?
The dropout voltage is 0.52V typ. at VOUT=2.8V/IOUT=1A; for 1.9V output, the datasheet specifies 0.46V max dropout at 1A (VOUT ≥ 3.3V) and 0.54V max at 1.2–1.5V. Interpolating conservatively, VIN ≥ 2.45V ensures regulation at full load. Below that, output collapses linearly.
Does RP132J191D-T1-FE require external capacitors, and what values are mandatory?
Yes: a minimum 2.2µF ceramic capacitor is required between VDD and GND, and another 2.2µF (or 4.7µF if VOUT > 3.6V) between VOUT and GND. These values are specified in the "Recommended External Components" section and are mandatory for stability - smaller values risk oscillation or poor transient response.
How does the auto-discharge function operate, and is it controllable?
The auto-discharge function activates automatically when CE is pulled low; an internal NMOS switch connects VOUT to GND, discharging external capacitors rapidly. It is not user-controllable - it is inherent to the D/F suffix variants and engages unconditionally during standby, eliminating need for external discharge circuitry.
Can RP132J191D-T1-FE be used with tantalum or aluminum electrolytic output capacitors?
No - the datasheet explicitly recommends ceramic capacitors only and warns that high-ESR tantalum or aluminum electrolytics may cause loop instability and oscillation. Phase compensation is optimized for low-ESR ceramics (≤100mΩ); using other types risks sustained ringing or failure to regulate under load transients.
RP132J191D-T1-FE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- RP132x
- Package/Case:
- TO-252-6, DPAK (5 Leads + Tab)
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 1.9V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.05V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 85 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-5-P2
RP132J191D-T1-FE FAQ
1.How can I place an order for RP132J191D-T1-FE through Aetrix?
Please submit a Request for Quotation (RFQ) for RP132J191D-T1-FE 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 RP132J191D-T1-FE reliable?
The price and inventory of RP132J191D-T1-FE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RP132J191D-T1-FE is usually 5 days.
3.What payment methods are accepted for RP132J191D-T1-FE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RP132J191D-T1-FE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RP132J191D-T1-FE?
RP132J191D-T1-FE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RP132J191D-T1-FE 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 RP132J191D-T1-FE?
For technical support, including RP132J191D-T1-FE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RP132J191D-T1-FE requirements.
6.How does Aetrix verify that RP132J191D-T1-FE is sourced from the original manufacturer or authorized distributors?
All RP132J191D-T1-FE 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 RP132J191D-T1-FE meets industry standards.
7.What is the process for return or replacement of RP132J191D-T1-FE?
All RP132J191D-T1-FE units undergo pre-shipment inspection (PSI). If there is an issue with RP132J191D-T1-FE, 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 RP132J191D-T1-FE part is unused and in its original packaging.
Return procedure for RP132J191D-T1-FE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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