R1213 Series

2.5A PWM Step-up DC/DC Converter

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Description

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.

Spec

	Consumer
Input Voltage Range	2.3 V to 5.5 V (6.5 V)
Operating Temperature Range	-40°C to 85°C (125°C)
Supply Current	Typ. 550 µA (non-switching) Typ. 3 mA (switching)
Standby Current	Typ. 0.1 µA
Output Voltage Range	Externally Adjustable: 3.0 V to 15.0 V (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
Driver ON-resistance	Typ. 0.07 Ω
Oscillator Frequency	Typ. 1.0 MHz
Maximum Duty Cycle	Min. 85%, Typ. 90%
Package	DFN(PL)2730-12

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TSD	ILX	OCP	OVP	UVLO	OVLO	Reverse	Shutdown	Soft Start	SSCG	PGOOD	Auto Discharge	Anti-ringing	Sequencing	Max Duty	Ext. Phase	LED Adjust

Functional Description

Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
R1213K001x-TR		DFN(PL)2730-12	R1213K	R1213K

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

TSD	Thermal Shutdown Function
ILX	LX Current Limit Function
OCP	Overcurrent Protection
OVP	Overvoltage Protection
UVLO	Undervoltage Lockout Protection
OVLO	Overvoltage Lockout Protection
Reverse	Reverse Current Protection Circuit
Shutdown	Shutdown Function
Soft Start	Soft Start Function
SSCG	Spread Spectrum Clock Generator Function
PGOOD	Power Good Output
Auto Discharge	Auto Discharge Function
Anti-ringing	Anti-ringing Switch Function
Sequencing	Start-up Sequencing Control
Max Duty	Maximum Duty Cycle
Ext. Phase	Externally Adjustable Phase Compensation
LED Adjust	LED High-speed Dimming Control