R1212D102A-TR-FE datasheet, PDF

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R1212D102A-TR-FE: DescriptionSwitching Controller, Current-mode, 805kHz Switching Freq-Max, CMOS, PDSO8, ROHS COMPLIANT, SON-8; CategoryPower/power management The power supply circuit; File Size135KB，2 Pages; ManufacturerRICOH Electronic Devices Co., Ltd.; Environmental Compliance

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R1212D102A-TR-FE Overview

Switching Controller, Current-mode, 805kHz Switching Freq-Max, CMOS, PDSO8, ROHS COMPLIANT, SON-8

R1212D102A-TR-FE Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Parts packaging code	SON
package instruction	VSON,
Contacts	8
Reach Compliance Code	unknown
ECCN code	EAR99
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER
control mode	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	5.5 V
Minimum input voltage	3.3 V
JESD-30 code	R-PDSO-N8
JESD-609 code	e3
length	2.9 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	VSON
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260
Maximum seat height	0.9 mm
surface mount	YES
Switch configuration	BOOST
Maximum switching frequency	805 kHz
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	NO LEAD
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	11
width	2.8 mm
Base Number Matches	1

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R1212D Series

PWM Step-up DC/DC Controller

The R1212D Series are low supply current CMOS-based PWM step-up DC/DC controllers. R1212D does not include an internal output

transistor. By simply using a power MOS, an inductor, a diode, resistors, and capacitors as external components, a high-efficiency

step-up DC/DC converter can be easily configured. The oscillator maximum duty cycle and soft start time as well as phase

compensation can be set with external resistors and capacitor (The oscillator maximum duty cycle can be selected from the type

with/without internal limit.) The oscillator frequency can be selected from 300kHz, 700kHz, or 1.4MHz. The latch type protection circuit

embedded into the device latches the external driver in the "OFF" state when the oscillator maximum duty cycle continues for a

predetermined period of time setting by an external capacitor. R1212D also includes an under-voltage lockout circuit (UVLO).

FEATURES

•

Supply Current (I

DD1

)······················· Typ. 400μA (300kHz), Typ. 600μA (700kHz),

•

Typ. 900μA (1.4MHz) (No switching)

Input Voltage Range (V

) ·············· 2.2V to 5.5V

Output Voltage Range ···················· Externally adjustable (Feedback voltage : 1.0V)

Feedback Voltage Accuracy ···········± 15mV

Temp. coeff. of Feedback Voltage ·····

150ppm/°C

•

Oscillator Frequency (f

osc

)

∗

············· Select from 700kHz, 1.4MHz or 300kHz.

•

Oscillator Maximum Duty Cycle (Maxduty)

∗

···· Set with external resistors

•

UVLO Detect Voltage (V

UVLO

)

∗

············· Select from 1.9V, 2.1V or 2.8V.

•

Soft Start Time (t

start

)·························· Set with an external resistor and

•

capacitor

Package ········································· SON-8

∗

) For information about combination of oscillator frequency, oscillator maximum duty cycle, and UVLO detect voltage, see SELECTION GUIDE.

BLOCK DIAGRAM

R1212D

Internal VR

TYPICAL APPLICATION

R1212D

REFOUT

UVLO

8 V

4 DELAY

EXT 1

NMOS

OSC

DTC

PWM Comp

Latch

EXT

2 GND AMPOUT 7

6 V

REFOUT

DTC 3

REF

Error Amp.

MPOUT 7

GND

ELAY

NMOS : CPH6415, L : VLP5612T, 10μH (A), 4.7μH (B), 22μH (C), SD : CRS02,

C1 : 2.2μF, C2 : 1μF, C3 : 15μF, C4=C5 : 1000pF (A), 680pF (B), 1500pF (C),

C6 : 0.1μF, C7 : 0.1μF, R3 : 1kΩ, R4 : 4.7kΩ, R5 : 240kΩ, R6 : 300kΩ

Output voltage set value 5V⋅⋅⋅R1 : 120kΩ, R2 : 30kΩ, 10V⋅⋅⋅R1 : 180kΩ, R2 : 20kΩ,

15V⋅⋅⋅R1 : 140kΩ, R2 : 10kΩ

SELECTION GUIDE

Halogen Free

Package

SON-8

Q'ty per Reel

3,000 pcs

Part No.

R1212D10.

∗

$ -TR-F

.0A.

.0B.

.1A.

.1C.

.2A.

.2C.

700kHz, No internal limit, 1.9V

1.4MHz, No internal limit, 1.9V

700kHz, Internal limiting (Min. 84%, Typ. 90%), 2.1V

300kHz, Internal limiting (Min. 85.5%, Typ. 91.5%), 2.1V

700kHz, Internal limiting (Min. 84%, Typ. 90%), 2.8V

300kHz, Internal limiting (Min. 85.5%, Typ. 91.5%), 2.8V

∗

$ : Specify a combination of the oscillator frequency, oscillator

maximum duty cycle internal limit, and UVLO detect voltage.

PACKAGE

SON-8

Top View

TYPICAL CHARACTERISTIC

R1212D100A Efficiency vs. Output Current

Bottom View

∗

EXT

GND

DTC

DELAY

REFOUT

AMPOUT

∗)

The tab suspension leads are substrate level (GND).

100

OUT

=5V

Efficiency

(%)

2.2V

3.3V

100

200

300

400

Output Current I

OUT

(mA)

500

APPLICATIONS

•

Power source for hand-held equipment

No.EK-109-121001

•

Power source for LCD and CCD

Step-up DC/DC Converter

LOAD

REFOUT

1. The products and the product speciﬁcations described in this document are subject to change or

discontinuation of production without notice for reasons such as improvement. Therefore, before

deciding to use the products, please refer to Ricoh sales representatives for the latest

information thereon.

2. The materials in this document may not be copied or otherwise reproduced in whole or in part

without prior written consent of Ricoh.

3. Please be sure to take any necessary formalities under relevant laws or regulations before

exporting or otherwise taking out of your country the products or the technical information

described herein.

4. The technical information described in this document shows typical characteristics of and

example application circuits for the products. The release of such information is not to be

construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual

property rights or any other rights.

5. The products listed in this document are intended and designed for use as general electronic

components in standard applications (oﬃce equipment, telecommunication equipment,

measuring instruments, consumer electronic products, amusement equipment etc.). Those

customers intending to use a product in an application requiring extreme quality and reliability,

for example, in a highly speciﬁc application where the failure or misoperation of the product

could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system,

traﬃc control system, automotive and transportation equipment, combustion equipment, safety

devices, life support system etc.) should ﬁrst contact us.

6. We are making our continuous eﬀort to improve the quality and reliability of our products, but

semiconductor products are likely to fail with certain probability. In order to prevent any injury to

persons or damages to property resulting from such failure, customers should be careful enough

to incorporate safety measures in their design, such as redundancy feature, ﬁrecontainment

feature and fail-safe feature. We do not assume any liability or responsibility for any loss or

damage arising from misuse or inappropriate use of the products.

7. Anti-radiation design is not implemented in the products described in this document.

8. Please contact Ricoh sales representatives should you have any questions or comments

concerning the products or the technical information.

Halogen Free

For the conservation of the global environment, Ricoh is advancing the decrease of the negative environmental impact material.

After Apr. 1, 2006, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.

Basically after Apr. 1, 2012, we will ship out the Power Management ICs of the Halogen Free products only. (Ricoh Halogen Free products are

also Antimony Free.)

RICOH COMPANY, LTD.

Electronic Devices Company

http://www.ricoh.com/LSI/

RICOH COMPANY, LTD.

Electronic Devices Company

● Higashi-Shinagawa Oﬃce (International Sales)

3-32-3, Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-8655, Japan

Phone: +81-3-5479-2857 Fax: +81-3-5479-0502

RICOH EUROPE (NETHERLANDS) B.V.

“Nieuw Kronenburg”

Prof. W.H. Keesomlaan 1, 1183 DJ, Amstelveen, The Netherlands

P.O.Box 114, 1180 AC Amstelveen

Phone: +31-20-5474-309 Fax: +31-20-5474-791

● Semiconductor Support Centre

RICOH ELECTRONIC DEVICES KOREA Co., Ltd.

11 ﬂoor, Haesung 1 building, 942, Daechidong, Gangnamgu, Seoul, Korea

Phone: +82-2-2135-5700 Fax: +82-2-2135-5705

RICOH ELECTRONIC DEVICES SHANGHAI Co., Ltd.

Room403, No.2 Building, 690#Bi Bo Road, Pu Dong New district, Shanghai 201203,

People's Republic of China

Phone: +86-21-5027-3200 Fax: +86-21-5027-3299

RICOH COMPANY, LTD.

Electronic Devices Company

● Taipei oﬃce

Room109, 10F-1, No.51, Hengyang Rd., Taipei City, Taiwan (R.O.C.)

Phone: +886-2-2313-1621/1622 Fax: +886-2-2313-1623

R1212D102A-TR-FE Related Products

	R1212D102A-TR-FE	R1212D101C-TR-FE	R1212D102C-TR-FE	R1212D101A-TR-FE
Description	Switching Controller, Current-mode, 805kHz Switching Freq-Max, CMOS, PDSO8, ROHS COMPLIANT, SON-8	Switching Controller, Current-mode, 360kHz Switching Freq-Max, CMOS, PDSO8, ROHS COMPLIANT, SON-8	Switching Controller, Current-mode, 360kHz Switching Freq-Max, CMOS, PDSO8, ROHS COMPLIANT, SON-8	Switching Controller, Current-mode, 805kHz Switching Freq-Max, CMOS, PDSO8, ROHS COMPLIANT, SON-8
Is it lead-free?	Lead free	Lead free	Lead free	Lead free
Is it Rohs certified?	conform to	conform to	conform to	conform to
Parts packaging code	SON	SON	SON	SON
package instruction	VSON,	VSON,	VSON,	VSON,
Contacts	8	8	8	8
Reach Compliance Code	unknown	unknown	unknown	unknown
ECCN code	EAR99	EAR99	EAR99	EAR99
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER
control mode	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
Maximum input voltage	5.5 V	5.5 V	5.5 V	5.5 V
Minimum input voltage	3.3 V	2.5 V	3.3 V	2.5 V
JESD-30 code	R-PDSO-N8	R-PDSO-N8	R-PDSO-N8	R-PDSO-N8
JESD-609 code	e3	e3	e3	e3
length	2.9 mm	2.9 mm	2.9 mm	2.9 mm
Humidity sensitivity level	1	1	1	1
Number of functions	1	1	1	1
Number of terminals	8	8	8	8
Maximum operating temperature	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	VSON	VSON	VSON	VSON
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, VERY THIN PROFILE	SMALL OUTLINE, VERY THIN PROFILE	SMALL OUTLINE, VERY THIN PROFILE	SMALL OUTLINE, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260	260	260	260
Maximum seat height	0.9 mm	0.9 mm	0.9 mm	0.9 mm
surface mount	YES	YES	YES	YES
Switch configuration	BOOST	BOOST	BOOST	BOOST
Maximum switching frequency	805 kHz	360 kHz	360 kHz	805 kHz
technology	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	NO LEAD	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	0.65 mm	0.65 mm	0.65 mm	0.65 mm
Terminal location	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	11	11	11	11
width	2.8 mm	2.8 mm	2.8 mm	2.8 mm

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