Product Information

R1240N001B-TR-FE

R1240N001B-TR-FE electronic component of Nisshinbo

Datasheet
Voltage Regulators - Switching Regulators Buck DC/DC Converter

Manufacturer: Nisshinbo
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

1: USD 2.7371 ea
Line Total: USD 2.74

5486 - Global Stock
Ships to you between
Mon. 27 May to Wed. 29 May
MOQ: 1  Multiples: 1
Pack Size: 1
Availability Price Quantity
5107 - WHS 1


Ships to you between Mon. 27 May to Wed. 29 May

MOQ : 1
Multiples : 1
1 : USD 1.8837
10 : USD 1.618
100 : USD 1.4249
250 : USD 1.3403
500 : USD 1.2027
1000 : USD 1.0191
3000 : USD 0.9733
6000 : USD 0.9733
9000 : USD 0.9443

     
Manufacturer
Product Category
RoHS - XON
Icon ROHS
Mounting Style
Package / Case
Output Voltage
Output Current
Number of Outputs
Input Voltage MAX
Topology
Input Voltage MIN
Switching Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Input Voltage
Operating Temperature Range
Type
Brand
Shutdown
Operating Supply Current
Factory Pack Quantity :
Supply Voltage - Min
Cnhts
Hts Code
Mxhts
Product Type
Subcategory
Taric
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R1240x Series 1.2 A, 30 V Step-Down DC/DC Converter NO.EA-190-170609 OUTLINE The R1240x is a CMOS-based Step-down DC/DC converter with internal Nch high side Tr. (0.35 ), which can provide the maximum 1.2 A output current. The ICs consists of an Oscillator, a PWM control circuit, a Reference Voltage unit, an Error amplifier, phase compensation circuits, a slope circuit, a s-ofsttart circuit, protection circuits, internal voltage regulators, and a switch for boot strap circuit. The ICs can make up a Step- Down DC/DC Converter with the following external components: an inductor, resistors, a diode, and capacitors. The R1240x is a current mode operating type DC/DC converter which does not require external current sense resistor, and i tworks high speed response time, high efficiency and compatible with ceramic capacitors. Oscillator frequency is internally set at 1.25 MHz. As a protection function, it has cycle by cycle peak current limit function, short protection function, thermal shutdown function and UVLO. There are two types for short protection, A version has latch protection function with 2m s delay time, and B version has fold-back protection function that keep operating at short condition with lower operating frequency and limiting the Lx current. FEATURES Operating Voltage 4.5 V to 30 V Internal Nch MOSFET Driver Typ. RON = 0.35 Adjustable Output Voltage with External Resistor 0.8 V to 15 V Feedback Voltage 0.8 V 1.5% Peak Current Limit Function Typ. 2.0 A UVLO Function Operating Frequency 1.25 MHz (Ver. B: 310 kHz, Fold-back Condition) Short Protection for Output Ver. A: Latch with 2 ms delay or Ver. B: Fold-back Ceramic Capacitor Compatible Stand-by Function Typ. 0 A Package SOT-23-6W, DFN(PLP)2527-10 APPLICATIONS Digital Home Appliances: Digital TVs, DVD Players OA Equipment: Printers, Fax Hand-held Communication Equipment, Cameras, VCRs, Camcorders Battery-powered Equipment 1 R1240x NO.EA-190-170609 SELECTION GUIDE In the R1240x, the Package, type of short protection (Latch or Fold- back) can be selected at the users request. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free DFN(PLP)2527-10 5,000 pcs Yes Yes R1240K003-TR SOT-23-6W 3,000 pcs Yes Yes R1240N001-TR-FE : Designation of Optional Function at off state are options as follows. (A ) Latch Type protection (B ) Fold-back Type protection BLOCK DIAGRAM VIN Thermal Shutdown 5V CE UVLO Regulator Regulator BST Shutdown SETPULSE Oscillator S D (1250kHz/3 10kHz) Lx VFB MAXDUTY R - Reference - + + Soft Start 0.8V Circuit(0.4msec) Limit Latch Current Slope Circuit (2msec) Circuit (Ver.A only) Peak Current GND Limit Circuit R1240x Block Diagram 2

Tariff Desc

8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Monolithic integrated circuits:
NEW JAPAN RADIO
NJR
NJR Corporation/NJRC
Ricoh
Ricoh Elec Devices
Ricoh Electronic Devices Company

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