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R1213 Series
2.5A PWM Step-up DCDC Converter

Product Specifications

The R1213 Series are low supply current, CMOS-based PWM step-up DC/DC converters. R1213 includes a soft start circuit, an under-voltage lockout circuit (UVLO), a thermal shutdown circuit, and a latch protection circuit. By simply using an inductor, resistors, capacitors and a diode as external components, a high-efficiency step-up DC/DC converter can be easily configured.

The soft start time as well as phase compensation can be set with external resistors and capacitors. Built-in a shutdown control circuit. It turns off the external Pch MOSFET at the protection time, so it cut off the power line from VDD to VOUT. To release the latch protection, change to the stand-by mode by the CE pin, or change the VDD voltage lower than the UVLO detect voltage.

FEATURES

Input Voltage Range (Maximum Rating) 2.3 V to 5.5 V (6.5 V)
Supply Current Typ. 550 µA (non-switching)
Supply Current Typ. 3 mA (switching)
Standby Current Typ. 0.1 µA (CE = “L”)
Output Voltage Range 3.0 V to 15.0 V, Externally Adjustable (VFB = 0.8 V)
Feedback Voltage Accuracy ±8 mV
Feedback Voltage Temperature Coefficient ±50 ppm/°C
Output Current 1.0 A: VIN = 3.3 V, VOUT = 3.8 V
500 mA: VIN = 2.3 V, VOUT = 5.0 V
250 mA: VIN = 2.7 V, VOUT = 9.6 V
150 mA: VIN = 3.0 V, VOUT = 15 V
Nch ON Resistance Typ. 0.07 Ω
Shutdown Control Function Activated by the external Pch MOSFET
Thermal Shutdown Circuit Activated at 150°C (Hys.= 40°C)
Overcurrent Protection Circuit Activated at Typ. 3.0 A
Latch-type Protection Circuit Protection Delay Time: Typ. 32 ms
FLAG Output Function Activated at "H"
UVLO Detector Threshold Typ. 2.0 V
Oscillator Frequency Typ. 1.0 MHz
Maximum Duty Cycle Min. 85%, Typ. 90%
Soft-start Time Set by the SS Pin
Phase Compensation Set by the AMPOUT Pin
Package DFN(PLP)2730-12

APPLICATION INFORMATION

In case of using P-channel MOSEFT for shutdown function

In case of not using shutdown function

FLAG pin should be open.

TYPICAL CHARACTERISTICS

Efficiency vs. Output Current

R1213K001A (VOUT=5.0V)

R1213K001B (VOUT=15.0V)

PIN DESCRIPTION

DFN(PLP)2730-12

DFN(PLP)2730-122.7 mm × 3.0 mm
1 AMPOUT
2 VFB
3 CE
4 GND***
5 GND***
6 GND***
7 TEST**
8 Lx***
9 Lx***
10 VIN
11 FLAG
12 SS

*) The tab is substrate level (GND).
**) The TEST pin connected to the GND level or should be open.
***) No.4,5 pin and No.6 pin, No.8 pin and No.9 pin must be wired each other when it is mounted on board.


R1213 Series for Consumer

APPLICATIONS

  • Flash LEDs
  • Data Cards
  • DSCs
  • LCD Source Bias Supplies

PRODUCT LONGEVITY PROGRAM

R1213 series operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


SELECTION GUIDE

The R1213 offers users to select the output voltage type matched to their set output voltage. Selecting the matched output voltage type can ensure high-speed transient response and stability.

Product Name   Package Quantity per Reel
R1213K001#-TR ConsumterPLP DFN(PLP)2730-12 5,000
  • # … Specify the output voltage type.
    A: Low Output Voltage Type (VOUT: 3.0 V to 6.0 V)
    B: High Output Voltage Type (VOUT: 6.0 V to 15 V)

DOCUMENT/CONTACT

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Technical Support

Package *1 Marking Reliability *2
DFN(PLP)2730-12 R1213K R1213K

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

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