Ricoh RH5RH13B User Manual
Page 3
OUTLINE
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1
FEATURES
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1
APPLICATIONS
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1
BLOCK DIAGRAM
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2
SELECTION GUIDE
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2
PIN CONFIGURATION
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3
PIN DESCRIPTION
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3
ABSOLUTE MAXIMUM RATINGS
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4
ELECTRICAL CHARACTERITICS
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5
OPERATION OF STEP-UP DC/DC CONVERTER
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10
TYPICAL CHARACTERISTICS
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13
1) Output Voltage vs. Output Current
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13
2) Efficiency vs. Output Current
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14
3) Supply Current (No Load) vs. Input Voltage
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15
4) Output Current vs. Ripple Voltage
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15
5) Start-up/Hold-on Voltage vs. Output Current (Topt=25˚C)
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16
6) Output Voltage vs. Temperature
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17
7) Start-up Voltage vs. Temperature
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18
8) Hold-on Voltage vs. Temperature
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18
9) Supply Current 1 vs. Temperature
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18
10) Supply Current 2 vs. Temperature
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18
11) Lx Switching Current vs. Temperature
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18
12) Lx Leakage Current vs. Temperature
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18
13) Oscillator Frequency vs. Temperature
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19
14) Oscillator Duty Cycle vs. Temperature
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19
15) Vlx Voltage Limit vs. Temperature
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20
16) EXT “H” Output Current vs. Temperature
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20
17) EXT “L” Output Current vs. Temperature
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20
18) Load Transient Response
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21
19) Distribution of Output Voltage
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22
20) Distribution of Oscillator Frequency
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22
RH5RH SERIES
APPLICATION MANUAL
CONTENTS