RP504K211AD-TR [RICOH]
DC-DC Regulated Power Supply Module, 1 Output, Hybrid, HALOGEN FREE AND ROHS COMPLIANT, DFN-6;
| 型号： | RP504K211AD-TR |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, Hybrid, HALOGEN FREE AND ROHS COMPLIANT, DFN-6 |
| 文件： | 总2页 (文件大小：363K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RP504x Series
600mA∗ PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
The RP504x Series are low supply current CMOS-based PWM/VFM step-down DC/DC converters with synchronous rectifier.
RP504K/L can be switched from two control types by inputting signal to the MODE pin - fixed PWM control or PWM/VFM auto
switching control in which mode automatically switches to high-efficiency VFM mode in low output current. (RP504N Series can be
selected from fixed PWM control or PWM/VFM auto switching control.) RP504x includes a soft start circuit, an under-voltage lockout
circuit (UVLO), and a latch protection circuit. By simply using an inductor and capacitors as external components, a high-efficiency
step-down DC/DC converter can be easily configured. The small inductor (2.2μH) and output capacitor (4.7μH) can be used by the
switching of 2.25MHz. In addition to SOT-23-5 and DFN1616-6B packages, a 1.2mm
available.
× 1.6mm DFN(PLP)1216-6B package is also
FEATURES
• Supply Current (IDD1)·······················Typ. 400μA (VIN=VCE=5.5V, VOUT=VSET
×
0.8)
•
UVLO
) ·············Typ. 2.0V
• Supply Current (IDD2)·······················Typ. 25μA (VIN=VCE=VOUT=5.5V)
• USVofLtOStDaertteTcitmVeolt(atsgtaert (V
)························Typ. 0.15ms
• Standby Current (Istandby
)
··················Max. 5μA (VIN=5.5V, VCE=0V)
• Coil-current Limit Circuit·················Current limit Typ. 900mA
• Latch Protection Circuit ··················Delay time for protection Typ. 1.5ms
• Auto-Discharge Function················D Version
• MODE pin·······································“H”: PWM/VFM auto switching,
“L”: fixed PWM
• Input Voltage Range (VIN)···············2.3V to 5.5V
• Output Voltage Range (VOUT)··········0.8V to 3.3V (internally fixed)
• Output Voltage Accuracy ················± 1.5%
• Output Current (IOUT)·······················600mA∗
• Oscillator Frequency (fosc)···············2.25MHz
(RP504N does not have MODE pin)
•
Oscillator Maximum Duty Cycle (Maxduty)··Min. 100%
• Packages········································DFN(PLP)1216-6F,
DFN1616-6B, SOT-23-5
) This is an approximate value, because output current depending on conditions and external parts.
∗
BLOCK DIAGRAM
TYPICAL APPLICATION
RP504L/K
RP504L/K
PVIN
L
VIN
VOUT
VIN
LX
VIN
2.2μH
Slope
Compensation
Current
Feedback
Chip
Enable
CE
VOUT
C
2.2μF
IN
C
4.7μF
OUT
CE
OSC
Current
Protection
MODE
GND
LX
Vref
1
PWM∗
Control
Switching
Control
Soft Start
VOUT
L
: MIPSZ2520D2R2 MIPS2520D2R2 (FDK)
、 、
UVLO
MLP2520S2R2M VLS252010T-2R2M (TDK)
CKP2520-2R2M (TAIYO YUDEN)
、
MODE
GND
IN
C
: 2.2 F: C1608JB0J225K (TDK)
、
μ
2.2 F 2: C1005JB0J225K (TDK) JMK105BJ225MV (TAIYO YUDEN)
、
μ ×
4.7 F: C1005X5R0J475M (TDK) JMK105BJ475MV (TAIYO YUDEN)
、
μ
*1) MODE="H": PWM/VFM auto switching MODE="L": fixed PWM
Blue Line : only RP504Kxx1D, RP504Lxx1D
、
COUT : C1608JB0J475K (TDK)、GRM155B30J475KE18 (MURATA)
SELECTION GUIDES
.
:
Select from (
.
A
.
) With MODE pin, without auto-discharge function,
.
∗
Package
DFN(PLP)1216-6F 5,000 pcs RP504L
Halogen Free
Q'ty per Reel
Part No.
(.
D
.
) With MODE pin, with auto-discharge function,
.
xx1∗-E2
$ : Select from (
.
B
.
) PWM/VFM auto switching, without auto-discharge function,
DFN1616-6B
SOT-23-5
5,000 pcs RP504K
3,000 pcs RP504N
.
xx1∗ -TR
(.
C
.
) Fixed PWM, without auto-discharge function,
.
xx1$-TR-FE
.
xx.
: Specify the output voltage within the range of
0.8V (
.
08
.
) to 3.3V (
.
33
.
) in 0.1V steps.
PACKAGES (Top View)
TYPICAL CHARACTERISTIC
RP504x (VOUT=3.3V) Efficiency vs. Output Current
DFN(PLP)1216-6F
DFN1616-6B
SOT-23-5
5 4
6
5
4
6
5
4
V
IN=5.0V, VMODE=0V
100
90
80
70
60
50
40
30
20
10
0
V
IN=4.3V, VMODE=0V
∗
1
2
3
1
2
3
1
2
3
1
2
3
4
5
6
VIN
MODE
CE
VOUT
GND
LX
1
2
3
4
5
6
CE
MODE
VIN
LX
GND
VOUT
1
2
3
4
5
VOUT
GND
LX
VIN
CE
V
IN=VMODE=4.3V
V
IN=VMODE=3.6V
0.01
0.1
1
10
100
1000
Output Current IOUT (mA)
) The tab is substrate level (GND).
∗
APPLICATIONS
• Power source for battery-powered equipment
• Power source for hand-held communication equipment, cameras, and VCRs
• Power source for compact HDD
No.EK-259-110607
Step-down DC/DC Converter
RP504x Series
Step-down DC/DC Converter
600mA PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
RP50x Series 600mA
Step-down DC/DC Converter Comparison
RP504x Series
RP500x Series
RP502x Series
RP503x Series
PWM/VFM auto switching /
Fixed PWM
PWM/VFM auto switching / PWM/VFM auto switching /
PWM/VFM auto switching
Control
Fixed PWM
Fixed PWM
（
It can be switched by MODE pin
）
Output Current *1
600mA
600mA
600mA
600mA
-
Supply Current
（
PWM Mode
VFM Mode
）
Typ. 400μA
Typ. 400μA
Typ. 100μA
Typ. 750μA
Typ. 180μA
Supply Current
（
）
Typ. 25μA
Typ. 20μA
Supply Current
（Standby）
Max. 5μA
Max. 5μA
Max. 5μA
Max. 5μA
Input Voltage Range
Output Voltage Range
Oscillator Frequency
2.3V to 5.5V
0.8V to 3.3V
Typ. 2.25MHz
±1.5%
2.55V to 5.5V
1.1V to 3.3V
Typ. 1.2MHz
±1.5%
2.5V to 5.5V
0.8V to 3.3V
Typ. 3.3MHz
±1.5%
2.5V to 5.5V
0.8V to 2.5V
Typ. 2MHz
±1.5%
Output Voltage Accuracy
Oscillator Maximum
Duty Cycle
Min.100%
Min.100%
Min.100%
Min.100%
UVLO Detect Voltage
Soft-start Time
Typ. 2.0V
Typ. 2.2V
Typ. 2.2V
Typ. 2.2V
Typ. 0.15ms
Typ. 0.12ms
Typ. 0.12ms
Typ. 0.15ms
Latch Protection Circuit
（Protection Delay Time）
Typ. 1.5ms
Typ. 1.5ms
Typ. 1.5ms
Typ. 1.5ms
Coil-current Limit Circuit
Package
Typ. 900mA
Typ. 900mA
Typ. 900mA
WLCSP-6-P2*2
DFN1616-6*3
Typ. 800mA
DFN(PLP)1212-6F
DFN1616-6B
WLCSP-6-P2*2
DFN1616-6*3
DFN(PLP)1820-6
SOT-23-6W
WLCSP-6-P2*2
DFN1616-6*3
SOT-23-5*4
SOT-23-5*4
A Version
With MODE pin、
1 Version
PWM/VFM auto switching,
without auto-discharge function without auto-discharge function without auto-discharge function
2 Version
Fixed PWM、
without auto-discharge function without auto-discharge function
3 Version
PWM/VFM auto switching,
with auto-discharge function
1 Version
PWM/VFM auto switching,
1 Version
PWM/VFM auto switching,
without auto-discharge function
D Version
With MODE pin、
with auto-discharge function
2 Version
Fixed PWM、
2 Version
PWM/VFM auto switching,
with auto-discharge function
3 Version
PWM/VFM auto switching,
with auto-discharge function
Version
）
Version
B Version
4
PWM/VFM auto switching,
without auto-discharge function
C Version
Fixed PWM、
without auto-discharge function
（
except for the DFN package
4 Version
Fixed PWM、
with auto-discharge function
Fixed PWM、
with auto-discharge function
*1) This is an approximate value, because output current depending on conditions and external parts.
*2) RP500Z, RP502Z, and RP503Z are pin-compatible *3) RP500L, RP502L, and RP503L are pin-compatible *4) RP503N and RP504N are pin-compatible
The currently available information as of June 2011 is provided in this New Product News.
EK-259-110607
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RP504K261AD-TR
DC-DC Regulated Power Supply Module, 1 Output, Hybrid, HALOGEN FREE AND ROHS COMPLIANT, DFN-6
RICOH
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