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SPECIFICATIONS:
Part No: IC3600EPSY1K1B
Manufacturer: General Electric
Product Type: Voltage Regulator Card 28 VDC
Series: Mark II
Output Voltage: 28 VDC
Input Voltage Range: 3 V to 50 V DC
Output Current: Up to 50 mA
Dropout Voltage: 300 mV
Quiescent Current: 40 µA
Output Voltage Adjustment Range: 1.275 V to 28 V
Operating temperature: -30 to 55 ºC
Power Supply Voltage: 24 V dc
Board Size: 2.8 cm high x 8.6 cm
Weight: 0.45 kgs
Availability: In Stock
Country of Origin: USA
FUNCTIONAL DESCRIPTION:
IC3600EPSY1K1B is a Voltage Regulator Card (28 VDC) manufactured and designed by General Electric as part of the Mark II Series used in GE Speedtronic Control Systems. This device delivers up to 50 mA of output current with an ultra-low dropout voltage of 300 mV, ensuring reliable regulation even under low-headroom conditions. It is specifically engineered for low quiescent current, high-voltage applications up to 50 V, making it ideal for battery-powered and high-voltage industrial systems.
The IC3600EPSY1K1B features an operating current of only 40 µA and a shutdown quiescent current of 1 µA, with quiescent current remaining tightly controlled even during dropout operation. This ensures minimal power loss and extended battery life in standby or low-load conditions. The regulator supports low-ESR ceramic output capacitors and remains stable with as little as 1 µF output capacitance, eliminating the need for large tantalum capacitors commonly required by older regulator designs. This enables compact, reliable, and modern power-supply designs without additional ESR compensation.
INSTALLATION:
The device shall be mounted on a PCB using standard surface-mount soldering practices compatible with an 8-pin HVSSOP PowerPAD package. The exposed thermal pad must be soldered to a dedicated PCB copper plane to ensure adequate heat dissipation. The input supply is connected to the VIN pin, with an allowable operating range of 3 V to 50 V DC. The input voltage must not exceed the specified maximum rating, and reverse polarity beyond the built-in protection limits must be avoided. A minimum 1 µF output capacitor must be placed close to the VOUT pin and ground reference; the device is stable with ceramic, tantalum, or aluminium electrolytic capacitors. The output load shall not exceed 50 mA, and load transients that may trigger current limiting should be avoided. Grounding must be provided via the device ground pin to the PCB ground plane with low impedance to minimise noise and maintain regulation stability.
OPERATION:
Upon application of a valid input voltage within the operating range, the device enters normal regulation mode, and the output voltage rises to the configured set point. For the adjustable version, output voltage is determined by the internal 1.275 V reference and external resistor divider network. The regulator maintains the output voltage within regulation while supplying up to 50 mA of output current. The typical dropout voltage is 300 mV, and regulation is maintained when the input voltage is at least 300 mV above the output voltage under load. Typical operating quiescent current is 40 µA, and the device draws approximately 1 µA in shutdown mode. The device includes reverse input-battery protection, reverse output current protection, current limiting, and thermal limiting.
KEY FEATURES OF VOLTAGE REGULATOR CARD:
WOC maintains the largest inventory of GE Speedtronic Control System replacement parts, including both hard-to-find legacy components and modern equivalents, and we also provide professional repair services for faulty boards using industry-standard testing and refurbishment procedures. We supply unused and rebuilt parts, all backed by a warranty to ensure long-term reliability, and our team of automation experts is available 24/7 to support OEM and plant maintenance requirements. For pricing, availability, or repair inquiries, please contact our team by phone or email, and our specialists will assist with part identification, compatibility verification, and expedited sourcing.
What is the Voltage Regulator Card 28 VDC?
A Voltage Regulator Card (28 VDC) is an industrial control module designed to provide a stable 28 V DC output from a variable input supply by continuously monitoring the input voltage and adjusting its internal regulation circuitry to maintain a constant output under varying load conditions. It is commonly used in systems such as GE Speedtronic turbine control cabinets to power control logic, signal conditioning circuits, sensors, and auxiliary modules, ensuring reliable operation even when the input voltage fluctuates.
What is the purpose of a 28 VDC voltage regulator card?
A 28 VDC voltage regulator card is designed to provide a stable and regulated 28 V output to power control electronics and auxiliary circuits. It maintains the output voltage within specified limits despite variations in input voltage or load current. The regulated output ensures reliable operation of sensitive components in industrial control systems.
What is the maximum output current supported by the device?
The device is capable of supplying up to 50 mA output current. It maintains regulation up to this limit under normal operating conditions. Exceeding the output current may trigger current limiting or cause the output voltage to drop out of regulation.
What output current can the regulator card supply?
The output current capability depends on the design, but typical 28 VDC regulator cards provide up to 50 mA of regulated output current. The card maintains regulation within this current limit under normal conditions. Exceeding the rated current may trigger current limiting or cause the output voltage to drop out of regulation.
