RP511x Series
0.3 µA I
Q
Ultra-lo w Quiescent Current 100 mA Buck DC/DC Converter
No. EA-502-171031
1
RP511x is a DC/DC converter featuring 0.3 μA ultra-low operating quiescent current.
It is suitable for use in wearable and IoT devices that require miniaturizati on and long-lifetime of battery.
● V
FM (f
SW
up to 1 MHz) control achieves 0.3 μA ultra-low operating quiescent current.
● T
he wide range of V
IN
from 2.0 V to 5.5 V allows operation from coin cell to USB port.
● T
otal mount area including C
IN
, C
OUT
, and inductor is 8.0 mm
2
.
● S
electab le pack ages including WLCSP, DF N, and SO T. 0.4 mm-thickness WLCSP package adaptable
to IC cards.
• Maximum Output Current: 100 mA
• Output Voltage Range:
1.0 V to 4.0 V (Settable in 0.1 V step)
• Output Voltage Accuracy:
±1.5% (V
SET
≥ 1.2 V), ±18 mV (V
SET
< 1.2 V)
• Built-in Driver On-resistance (V
IN
= 3.6 V):
T
y p. PMOS 0.15 Ω, NMOS 0.15 Ω (RP511Z)
• Standby Current: 0.01 µA
V
OUT
= 1.8 V
VIN
CE
LX
VOUT
GND
V
IN
C
IN
C
OUT
V
OUT
L
RP511
xx: Set out put volt age (V
SET
)
Fixed Output Voltage Type:
1.0 V (10) to 4.0 V (40) in 0.1 V step.
$: Version
Product Name
Package
Q’ty per Reel
RP511Zxx1$-TR-F
WLCSP-8-P1
5,000 pcs
RP511Kxx1$-TR
[Under Development]
DFN2527-10 5,000 pcs
RP511Hxx1$-T1-FE
[Under Development]
SOT-89-5 1,000 pcs
Version
Auto-discharge Function
V
SET
A
No
1.0 V to 4.0 V
B
Yes
L: 2.2 µH, C
OUT
: 22 µF
WLCSP-8-P1
(1.45 mm x 1.48 mm)
DFN(PLP)2527-10
[Under Development]
SOT-89-5
[Under Development]
•
Wearable equipment such as SmartWatch, SmartBand, and health monitoring
• Li-ion battery-used equipment, Coin cell-us ed equ ipment
• Low power RF such as Bluetooth® Low Energy, Zigbee, WiSun, and ANT
• Low power CPU, memory, sensor devices, and energy harvesting
0
20
40
60
80
100
0.001 0.01 0.1 1
10
100
Efficiency [%]
I
OUT
[mA]
Vin=2.3V
Vin=3.6V
Vin=5.5V
KEY BENEFITS
KEY SPECIFICATIONS
TYPICAL CHARACTERISTICS
TYPIC AL APPLICATIONS
SELECTION GUIDE
APPLICATIONS
OVERVIEW
PACKAGES
RP511x
No. EA-502-171031
2
SELECTION GUIDE
The set output voltage, the output voltage type, the auto-discharge function
(1)
, and the package for the ICs are
user-selectable options.
Selection Guide
Product Name Package Quantity per Reel Pb Free Halogen Free
RP511Zxx1$-TR-F WLCSP−8−P1 5,000 pcs Yes Yes
RP511Kxx1$-TR
[Under Development]
DFN(PLP)2527-10 5,000 pcs Yes Yes
RP511Hxx1$-T1-FE
[Under Development]
SOT-89-5 1,000 pcs Yes Yes
xx: Designation of the set output voltage (V
SET
)
For Fixed Output Voltage Type
(2)
: 1.0 V (10) to 4.0 V (40) in 0.1 V step
$: Designation of Version
Version Auto-discharge Function V
SET
A
Disable
1.0 V to 4.0 V
B
Auto-discharge
(1)
Auto-d ischarg e funct ion qu ickly lower s the output volt age to 0 V, w hen the ch ip enab le signal i s sw itched from th e active
mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.
(2)
The customization of specifying in 0.05 V step is available.