To our custo mers,
Old Company Name in Catalogs and Other Documents
On April 1st, 2010, NEC Electronics Corporation merged with Renesas Technology
Corporation, and Renesas Electronics Corpor ation took over all the business of both
companies. Therefore, althoug h the old com pany name remains in this docum ent, it is a valid
Renesas Electronics document. W e appreciate your understanding.
Renesas Electronics website: http://www.renesas.com
April 1st, 2010
Renesas Electronics Corporation
Issued by: Renesas Electronics Corporation (http://www.renesas.com)
Send any inquiries to http://www.renesas.com/inquiry.
Notice
1. All information included in this document is current as of the date this document is issued. Such information, however, is
subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please
confirm the latest product information with a Renesas Electronics sales office. Also, please pay regular and careful attention to
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of third parties by or arising from the use of Renesas Electronics products or technical information described in this document.
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8. You should use the Renesas Electronics products described in this document within the range specified by Renesas Electronics,
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characteristics, installation and other product characteristics. Renesas Electronics shall have no liability for malfunctions or
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(Note 1) “Renesas Electronics” as us ed in this document means Renesas Electronics Corporation and also includes its majo ri ty-
owned subsidiaries.
(Note 2) “Renesas Electronics product(s)” means any product developed or manufactured by or for Renesas Electronics.
REJ03D08 52-0 300 Rev.3.00 Jun 15, 2007
Page 1 of 6
M62292FP
3.3 V, 1.8 V Fixed 2-Output Voltage DC/DC Converter REJ03D0852-0300
Rev.3.00
Jun 15, 2007
Description
M62292FP is 3.3 V and 1.8 V fixed stable 2-output step-down DC/DC converter.
It is possible to simplify peripheral circuit and to design compact and low cost sets because this device includes
peripheral devices in small size 8-pin package.
The IC also has Reset circuit with time delay that monitors power supply (VCC = 5 V) and one regulator output (Vout1
= 3.3 V; IN1 terminal), therefore an application system is protected system errors.
Especially this is most suitable for application system with microprocessor and ASIC.
Features
• 3.3 V and 1.8 V step-down converter
• 4 to 15 V wide input supply voltage (VCC = 5 V typ.)
• Reset circuit with time delay monitors
• Suppl y vol tage (VCC = 5 V) and regulator output (3.3 V)
• 110 kHz fixed frequency oscillator without peripheral devices
• 8-pin SOP package
Application
Application system with microprocessor and ASIC
Block Diagram
Cout1
IN1 (3.3 V) IN2 (1.8 V)
PWM comp.
PWM comp.
Comparator
(3.3 V detect)
V
CC
Cd
GND
RESET
OP Amp OP Amp
Oscillator
(110 kHz)
Vref
1.25 V
Comparator
(V
CC
detect)
IN1; 3.3 V
25 µA
V
CC
0.6 µA
Cout2
7
3
64
+
+
−
+
−
+
−
+
−
+
−
85 2
1
+
−
M62292FP
REJ03D08 52-0 300 Rev.3.00 Jun 15, 2007
Page 2 of 6
Pin Arrangement
Cout1
GND
Cout2
VCC
IN1
RESET
Cd
IN2
1
2
3
45
6
7
8
M62292FP
Outline: PRSP0008DE-C (recommend)
PRSP0008DA-A (8P2S-A) (not recommend for new design)
M62292FP
REJ03D08 52-0 300 Rev.3.00 Jun 15, 2007
Page 3 of 6
Absolute Maximum Ratings
(Ta = 25°C, unl ess otherwise noted )
Item Symbol Ratings Unit Conditions
Supply voltage VCC 16 V
Output current (DC/DC converter block) IO 30 mA ch1, ch2
Output current (Reset block) IORESET 6 mA
Power dissipation Pd 440 mW Ta = 25°C
Thermal derating Kθ 4.4 mW/°C Ta > 25°C
Operating temperature Topr −20 to +85 °C
Storage temperature Tstg −40 to +125 °C
Electrical Characteristics
(Ta = 25°C, V CC = 5 V, unless othe rwise noted)
Limits
Block
Item
Symbol Min Typ Max
Unit
Test Condition
Supply voltage VCC 4.0 5.0 15 V All blocks Supply current ICC 1.5 2.8 mA Without load
DC/DC converter block VO1 3.15 3.30 3.45 ch1 output Output voltage VO2 1.71 1.80 1.89 V ch2 output
Line regulation Vreg-L 5 15 mV VCC = 4 to 12 V
Input current 1 Iin 150 450 µA ch1
Error
Amp.
Input current 2 Iin 100 300 µA ch2
Oscillator Oscillator frequency fOSC 65 110 160 kHz
Maximum on duty TDUTY 90 %
Output leakage current ICL −1 1 V VCC = 12 V, VC = 12 V
Output
Output saturation voltage Vsat 1.2 2.0 V IO = 10 mA, Darlington
connection
Reset circuit block
Detecting voltage 1 Vs1 3.6 3.8 4.0 V VCC = 5 V detection
Hysteresis voltage 1 ∆Vs1 30 50 80 mV
Detecting voltage 2 Vs2 2.46 2.58 2.70 V ch1 output (3.3 V) detection
Hysteresis voltage 2 ∆Vs2 30 50 80 mV
Cd output current IPD −1.1 −0.6 −0.3 µA
Delay time tpd 5 10 20 ms Cd = 4700 pF
RESET output current IOC −40 −25 −17 µA VCC = 5 V, VO = 1/2 × VCC
RESET low voltage VOL 0.2 VO1V I
ORESET = 4 mA
Reset
circuit
RESET high voltage VOH 0.8 VO1 V
M62292FP
REJ03D08 52-0 300 Rev.3.00 Jun 15, 2007
Page 4 of 6
Reset Block Timing Chart
5 V
3.85 V
3.80 V
0 V
3.3 V
2.63 V
2.58 V
0 V
V
O
1
0 V
RESET output ch1 output (V
O
1) V
CC
t
t
t
tpdtpdtpd
Note: tpd: RESET delay time···················tpd (ms) ≈ 2.13 × 10−3 × Cd (pF)
M62292FP
REJ03D08 52-0 300 Rev.3.00 Jun 15, 2007
Page 5 of 6
Application Circuit (3.3 V and 1.8 V 2-output Voltage DC/DC Converter)
MCU etc.
+
+
+Cin
V
IN
(5 V)
V
OUT1
(3.3 V)
V
OUT2
(1.8 V)
C
o2
C
o1
V
CC
IN1
IN2
RESET Cd GND
Cout2
Cout1
M62292FP
R1
L1
D1
Q1
R3
L2 D2
Q2
R4
R2
1.8 V Line
3.3 V Line
8
5
76 2
3
1
4
Cd
The Expression of Circuit Constants
(T
ON
+ T
OFF
) /
( )
T
ON
T
OFF
1 +
(V
IN
− V
CE (sat)
− V
O
)
× T
ON (MAX)
∆l
O
V
O
+ V
F
V
IN
− V
CE (sat)
− V
O
− T
OFF
1
f
OSC
(T
ON
+ T
OFF
)
MAX
T
OFF (MIN)
T
ON (MAX)
lpk
L
(MIN)
T
ON
T
OFF
l
O
+ ∆l
O
1
2
Constants Expressions
1
f
OSC
f
OSC
: 110 kHz (V
CC
= 5 V)
Note: VF: Forward voltage drop of an external diode.
Vsat: Output saturation voltage of an external switching transistor.
∆IO: Set to 1/3 to 1/5 of maximum output current.
Choose an external transistor, diode and inductor with peak current rating approximately greater than "Ipk".
M62292FP
REJ03D08 52-0 300 Rev.3.00 Jun 15, 2007
Page 6 of 6
Package Dimensions
A
L
e
c
1
b
1
D
E
A
2
b
p
c
θ
x
y
H
E
Z
L
1
4.854.65
0.90
0.12
0° 8°
6.2
0.15 0.20 0.25
1.12 1.42
0.46
0.00 0.1 0.20
4.4
1.85
4.64.2
0.25 0.45 0.65
2.03
Reference
Symbol
Dimension in Millimeters
Min Nom Max
5.05
A
1
0.34 0.4
6.55.7
1.27
0.10
0.75
58
4
F
*1
*2
*3
p
Mx
y
1
Index mark
E
A
Zb
E
H
D
p
Terminal cross section
( Ni/Pd/Au plating )
c
b
1
Detail F
A
θ
2
A
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
e
P-SOP8-4.4x4.85-1.27 0.1g
MASS[Typ.]
—PRSP0008DE-C
RENESAS CodeJEITA Package Code Previous Code
1
L
L
2.
1. DIMENSIONS "*1" AND "*2"
DO NOT INCLUDE MOLD FLASH.
NOTE)
DIMENSION "*3" DOES NOT
INCLUDE TRIM OFFSET.
b
p
A
1
H
E
y0.1
e1.27
c
0° 10°
L0.2 0.4 0.6
0.05
A1.9
5.9 6.2 6.5
A
2
1.5
E4.2 4.4 4.6
D4.8 5.0 5.2
Reference
Symbol
Dimension in Millimeters
Min Nom Max
0.35 0.4 0.5
0.13 0.15 0.2
P-SOP8-4.4x5-1.27 0.07g
MASS[Typ.]
8P2S-APRSP0008DA-A
RENESAS CodeJEITA Package Code Previous Code
1.12 1.42
Detail F
L
A
1
A
2
F
*1
*2
*3
85
41 Index mark
y
b
p
e
A
c
E
HE
D
Notes:
1. This document is provided for reference purposes only so that Renesas customers may select the appropriate Renesas products for their use. Renesas neither makes
warranties or representations with respect to the accuracy or completeness of the information contained in this document nor grants any license to any intellectual property
rights or any other rights of Renesas or any third party with respect to the information in this document.
2. Renesas shall have no liability for damages or infringement of any intellectual property or other rights arising out of the use of any information in this document, including,
but not limited to, product data, diagrams, charts, programs, algorithms, and application circuit examples.
3. You should not use the products or the technology described in this document for the purpose of military applications such as the development of weapons of mass
destruction or for the purpose of any other military use. When exporting the products or technology described herein, you should follow the applicable export control laws
and regulations, and procedures required by such laws and regulations.
4. All information included in this document such as product data, diagrams, charts, programs, algorithms, and application circuit examples, is current as of the date this
document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas products listed in this document,
please confirm the latest product information with a Renesas sales office. Also, please pay regular and careful attention to additional and different information to be
disclosed by Renesas such as that disclosed through our website. (http://www.renesas.com )
5. Renesas has used reasonable care in compiling the information included in this document, but Renesas assumes no liability whatsoever for any damages incurred as a
result of errors or omissions in the information included in this document.
6. When using or otherwise relying on the information in this document, you should evaluate the information in light of the total system before deciding about the applicability
of such information to the intended application. Renesas makes no representations, warranties or guaranties regarding the suitability of its products for any particular
application and specifically disclaims any liability arising out of the application and use of the information in this document or Renesas products.
7. With the exception of products specified by Renesas as suitable for automobile applications, Renesas products are not designed, manufactured or tested for applications
or otherwise in systems the failure or malfunction of which may cause a direct threat to human life or create a risk of human injury or which require especially high quality
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undersea communication transmission. If you are considering the use of our products for such purposes, please contact a Renesas sales office beforehand. Renesas shall
have no liability for damages arising out of the uses set forth above.
8. Notwithstanding the preceding paragraph, you should not use Renesas products for the purposes listed below:
(1) artificial life support devices or systems
(2) surgical implantations
(3) healthcare intervention (e.g., excision, administration of medication, etc.)
(4) any other purposes that pose a direct threat to human life
Renesas shall have no liability for damages arising out of the uses set forth in the above and purchasers who elect to use Renesas products in any of the foregoing
applications shall indemnify and hold harmless Renesas Technology Corp., its affiliated companies and their officers, directors, and employees against any and all
damages arising out of such applications.
9. You should use the products described herein within the range specified by Renesas, especially with respect to the maximum rating, operating supply voltage range,
movement power voltage range, heat radiation characteristics, installation and other product characteristics. Renesas shall have no liability for malfunctions or damages
arising out of the use of Renesas products beyond such specified ranges.
10. Although Renesas endeavors to improve the quality and reliability of its products, IC products have specific characteristics such as the occurrence of failure at a certain
rate and malfunctions under certain use conditions. Please be sure to implement safety measures to guard against the possibility of physical injury, and injury or damage
caused by fire in the event of the failure of a Renesas product, such as safety design for hardware and software including but not limited to redundancy, fire control and
malfunction prevention, appropriate treatment for aging degradation or any other applicable measures. Among others, since the evaluation of microcomputer software
alone is very difficult, please evaluate the safety of the final products or system manufactured by you.
11. In case Renesas products listed in this document are detached from the products to which the Renesas products are attached or affixed, the risk of accident such as
swallowing by infants and small children is very high. You should implement safety measures so that Renesas products may not be easily detached from your products.
Renesas shall have no liability for damages arising out of such detachment.
12. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written approval from Renesas.
13. Please contact a Renesas sales office if you have any questions regarding the information contained in this document, Renesas semiconductor products, or if you have
any other inquiries.
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http://www.renesas.com
Refer to "http://www.renesas.com/en/network" for the latest and detailed information.
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