Nisshinbo Micro Device Inc. R1202

Overview

Topology	Boost Converter
Input voltage	-0.3-6.5 V
Switching frequency	1000-1400 kHz
Output 1	12 V / 0.02 A
IC revision	210322

Description

The R1202 Series are CMOS-based PWM step-up DC/DC converters, which are optimized to drive white LEDs and PMOLED with constant current. There are two types. The A/B versions are optimized for the general use or the drive of PMOLED, and the D version is optimized for the serial drive of white LED with constant current. The R1202 includes an under-voltage lockout circuit (UVLO), a soft-start circuit, and an over-voltage protection circuit (OVP), a thermal shutdown circuit. By simply using an inductor, divider resistors, and capacitors as external components, PMOLED and white LEDs can be driven with high efficiency. At the standby mode, the internal NPN transistor can separate the output from the input. (Shutdown function) The A/B version with auto-discharge function is selectable. D Version can set the LED current with feedback resistor (R1). The brightness of the LEDs and the soft-start time can be adjusted by applying a PWM signal (200Hz to 300kHz) to the CE pin. In addition to DFN1616-6B, 0.95mm thickness TSOT-23-6 is available.

Features

Input Voltage Range: 2.3V to 5.5V (R1202xxxxA/B), 1.8V to 5.5V (R1202xxxxD)
Supply Current: Typ. 800µA
Standby Current: Max. 5µA
Feedback Voltage: 1.0V±15mV (R1202xxxxA/B), 0.2V±10mV (R1202xxxxD)
Oscillator Frequency: Typ. 1.2MHz
Maximum Duty Cycle: Typ. 91%
UVLO Function: Typ.2.0V (Hys.Typ.0.2V) (R1202xxxxA/B) Typ.1.6V (Hys.Typ.0.1V) (R1202xxxxD)
Lx Current Limit Function: Select from 350mA, 700mA
Over Voltage Protection: Select from 14V-23V (Refer the Selection Guide)
LED dimming control for R1202xxxxD: by external PWM signal (Frequency 200Hz to 300kHz)
Thermal Protection Function: Typ.150ºC(Hys.Typ.50ºC)
Built-in Auto Discharge Function: R1202xxxxA
NMOS ON Resistance: 1.35Ω
Packages: DFN1616-6B, TSOT-23-6

Typical applications

White LED Backlight for portable equipment
• Constant Voltage Power Source for portable equipment, OLED power supply for portable equipment

More information

Products

Order Code	Datasheet	Downloads	Status	Product series	L (µH)	I_SAT,10% (A)	I_SAT,30% (A)	R_{DC max.} (Ω)	f_res (MHz)	I_RP,40K (A)	Mount	I_R (A)	I_SAT (A)	R_DC (mΩ)	R_{DC typ.} (mΩ)	V_OP (V)	Q
744032100	SPEC PCN pending Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. SPEC Datasheet PCN PCN document	8 files EDA models: Components ZIP ALT WE-LQ (rev23a).IntLib \| 376.5 KB ZUK Cadstar_WE-LQ (rev19a).zip \| 15 KB CDS Cadence_WE-LQ (rev22b).zip \| 1.7 MB EAG Eagle_WE-LQ (rev22a).lbr \| 47.5 KB CAD files ZIP IGS WE-LQ_1210 (rev1).igs \| 1.8 MB STP WE-LQ_1210 (rev1).stp \| 756.5 KB Electric models ZIP PSP PSpice_WE-LQ (rev22b).zip \| 10.5 KB SCS Spectre_WE-LQ (rev24a).mod \| 11.8 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-LQ SMT Inductor	10	–	–	0.65	20	–	SMT	0.32	0.85	–	–	120	35
74404032100	SPEC	8 files EDA models: Components ZIP ALT WE-LQS (rev24a).IntLib \| 1.1 MB ZUK Cadstar_WE-LQS (rev20b).zip \| 20.4 KB CDS Cadence_WE-LQS (rev24b).zip \| 6.2 MB EAG Eagle_WE-LQS (rev24a).lbr \| 135.4 KB CAD files ZIP IGS WE-LQS_3015_LQS (rev1).igs \| 614.4 KB STP WE-LQS_3015_LQS (rev1).stp \| 348.1 KB Electric models ZIP PSP PSpice_WE-LQS (rev23a).zip \| 36.9 KB SCS Spectre_WE-LQS (rev24a).mod \| 42.7 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-LQS SMT Power Inductor	10	–	–	–	37	–	SMT	0.84	0.87	230	–	120	–
74438335100	SPEC	10 files EDA models: Components ZIP ALT WE-MAPI (rev24b).IntLib \| 596.5 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24b).zip \| 2.3 MB EAG Eagle_WE-MAPI (rev24b).lbr \| 193.1 KB KIC KiCad_WE-MAPI (rev24b).zip \| 745.1 KB CAD files ZIP 3D 3D_WE-IndMAPI_3015_3D (rev1).pdf \| 66.8 KB IGS WE-MAPI_3015 (rev1).igs \| 521.4 KB STP WE-MAPI_3015 (rev1).stp \| 289.8 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev24a).mod \| 41 KB Download all 10 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-MAPI SMT Power Inductor	10	1.35	2.75	0.513	21	1.25	SMT	0.85	2	–	446	80	–
74438336100	SPEC	10 files EDA models: Components ZIP ALT WE-MAPI (rev24b).IntLib \| 596.5 KB ZUK Cadstar_WE-MAPI (rev20a).zip \| 15.9 KB CDS Cadence_WE-MAPI (rev24b).zip \| 2.3 MB EAG Eagle_WE-MAPI (rev24b).lbr \| 193.1 KB KIC KiCad_WE-MAPI (rev24b).zip \| 745.1 KB CAD files ZIP 3D 3D_WE-IndMAPI_SSMC-30xx_3D (rev1).pdf \| 62.3 KB IGS WE-MAPI_3020 (rev1).igs \| 521.1 KB STP WE-MAPI_3020 (rev1).stp \| 287.6 KB Electric models ZIP PSP PSpice_WE-MAPI (rev24a).zip \| 31.1 KB SCS Spectre_WE-MAPI (rev24a).mod \| 41 KB Download all 10 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-MAPI SMT Power Inductor	10	1.55	3	0.322	18	1.65	SMT	1.2	2.35	–	280	80	–
78438335100	SPEC	8 files EDA models: Components ZIP ALT Altium_WE-MAIA (rev24b).IntLib \| 710 KB ZUK Cadstar_WE-MAIA (rev20a).zip \| 13 KB CDS Cadence_WE-MAIA (rev24a).zip \| 2.2 MB EAG Eagle_WE-MAIA (rev24b).lbr \| 168.2 KB CAD files ZIP IGS Download_IGS_WE-MAIA-3015 (rev1).igs \| 305.4 KB STP Download_STP_WE-MAIA-3015 (rev1).stp \| 289.8 KB Electric models ZIP PSP PSpice_WE-MAIA (rev24a).zip \| 28.9 KB SCS Spectre_WE-MAIA (rev24b).mod \| 37.6 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-MAIA SMT Power Inductor	10	1.35	3	0.513	21	1.25	SMT	–	–	–	446	–	–
78438336100	SPEC	8 files EDA models: Components ZIP ALT Altium_WE-MAIA (rev24b).IntLib \| 710 KB ZUK Cadstar_WE-MAIA (rev20a).zip \| 13 KB CDS Cadence_WE-MAIA (rev24a).zip \| 2.2 MB EAG Eagle_WE-MAIA (rev24b).lbr \| 168.2 KB CAD files ZIP IGS Download_IGS_WE-MAIA-3020 (rev1).igs \| 304.4 KB STP Download_STP_WE-MAIA-3020 (rev1).stp \| 290.1 KB Electric models ZIP PSP PSpice_WE-MAIA (rev24a).zip \| 28.9 KB SCS Spectre_WE-MAIA (rev24b).mod \| 37.6 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-MAIA SMT Power Inductor	10	1.55	3	0.322	18	1.65	SMT	–	–	–	280	–	–
74405031100	SPEC	8 files EDA models: Components ZIP ALT Altium_WE-LQSH (rev22d).IntLib \| 289 KB ZUK Download_CadStar_WE-LQSH (rev19a).zip \| 9.3 KB CDS Cadence_WE-LQSH (rev22a).zip \| 1.6 MB EAG Eagle_WE-LQSH (rev24a).lbr \| 36.5 KB CAD files ZIP IGS Download_IGS_WE-LQSH-3012 (rev1).igs \| 453.6 KB STP Download_STP_WE-LQSH-3012 (rev1).stp \| 146.7 KB Electric models ZIP PSP PSpice_WE-LQSH (rev22a).zip \| 6.8 KB SCS Spectre_WE-LQSH (rev24a).mod \| 7.2 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-LQSH SMT High Saturation Power Inductor	10	–	–	0.474	21	–	SMT	0.85	1.45	–	395	–	–
74404031100A	–	7 files EDA models: Components ZIP ALT WE-LQS (rev24a).IntLib \| 1.1 MB ZUK Cadstar_WE-LQS (rev20b).zip \| 20.4 KB CDS Cadence_WE-LQS (rev24b).zip \| 6.2 MB EAG Eagle_WE-LQS (rev24a).lbr \| 135.4 KB CAD files ZIP IGS Download_IGS_WE-LQS-3012 (rev1).igs \| 92.5 KB STP Download_STP_WE-LQS-3012 (rev1).stp \| 83.1 KB Electric models ZIP PSP PSpice_WE-LQS (rev23a).zip \| 36.9 KB Download all 7 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	–	–	–	–	–	–	–	–	–	–	–	–	–	–

	Order Code	Datasheet	Simulation
	744032100	SPEC PCN pending Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. SPEC Datasheet PCN PCN document
	74404032100	SPEC
	74438335100	SPEC
	74438336100	SPEC
	78438335100	SPEC
	78438336100	SPEC
	74405031100	SPEC
	74404031100A	–

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	L (µH)	I_SAT,10% (A)	I_SAT,30% (A)	R_{DC max.} (Ω)	f_res (MHz)	I_RP,40K (A)	Mount	I_R (A)	I_SAT (A)	R_DC (mΩ)	R_{DC typ.} (mΩ)	V_OP (V)	Q	Samples

IC manufacturers (99)

STEP-UP DC/DC CONVERTER with SHUTDOWN FUNCTION