RP132x SERIES
Low on Resistance / Low Voltage 1A LDO
NO.EA-265-130605
OUTLINE
The RP132x Series are voltage-regulators with a built-in low ON-resistance transistor and output current is 1A
capability. These ICs have two versions: fixed output voltage type and externally adjustable output voltage type.
The minimum output voltage can be set from 1.4V. Otherwise, the load regulation of RP132x has much improved
when compared with conventional regulators. It's Typ.5mV at I
OUT
=0.1mA
to 1A.
Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor net for setting output voltage,
current limit circuits to prevent over-current and a thermal-shutdown circuit. A standby mode with ultra low supply
current can be realized with the chip enable function. Additionally, E/F Version with delay pin for inrush current
limit time setting are also available.
The packages for these ICs are DFN(PLP)1820-6, SOT-89-5, HSOP-6J and TO-252-5-P2. DFN(PLP)1820-6 is
suitable for high density mounting of the ICs on boards. SOT-89-5, HSOP-6J and TO-252-5-P2 are supporting
high wattage.
FEATURES
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Output Current ............................................................ Min. 1A
Supply Current ............................................................. Typ. 65μA
Standby Current .......................................................... Typ. 0.15μA
Input Voltage Range ................................................... 1.4V to 6.5V
Output Voltage Range .................................................. Fixed Output Voltage Type: 0.8V to 5.5V (0.1V steps)
Adjustable Output Voltage Type: 0.8V to 5.5V
(
For other voltages, please refer to MARK INFORMATIONS.)
Dropout Voltage............................................................ Typ. 0.52V (V
OUT
=2.8V,
I
OUT
=1A)
Ripple Rejection ........................................................... Typ. 70dB (f=1kHz, V
OUT
=2.8V)
Output Voltage Accuracy..............................................
±1.0%
Output Voltage Temperature-Drift Coefficient .............. Typ.
±60ppm/°C
Line Regulation ............................................................ Typ. 0.052%/V
Load Regulation ......................................................... Typ. 3mV at I
OUT
=300mA,
Typ. 5mV at I
OUT
=
1A
Packages .................................................................... DFN(PLP)1820-6, SOT-89-5, HSOP-6J,TO-252-5-P2
Inrush Current Limit Circuit ......................................... Typ. 500mA
B/D version: Inrush current limit time is 500μs.
E/F version: Inrush current limit time is adjustable.
Fold-Back Protection Circuit ....................................... Typ. 250mA (Current at short mode)
Thermal Shutdown Circuit .......................................... Thermal Shutdown Temperature: Typ. 165°C
Released Temperature:Typ. 95°C
Auto Discharge Function ............................................ D, F version
Ceramic capacitors are recommended to be used with this IC .... 2.2μF or more (V
OUT
≤
3.6V)
4.7μF or more (V
OUT
>
3.6V)
T
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APPLICATIONS
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•
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•
Power source for battery-powered equipment.
Power source for portable communication equipment
Power source for electrical appliances such as cameras, VCRs and camcorders.
Power source for home appliances and Notebook PC.
1
RP132x
SELECTION GUIDE
The output voltage, the auto discharge function, and the package type for the ICs can be selected at the user’s
request.
Product Name
RP132Kxx1∗-TR
RP132Hxx1#-T1-FE
RP132Sxx1∗-E2-FE
RP132Jxx1#-T1-FE
Package
DFN(PLP)1820-6
SOT-89-5
HSOP-6J
TO-252-5-P2
Quantity per Reel
5,000 pcs
1,000 pcs
1,000 pcs
3,000 pcs
Pb Free
Yes
Yes
Yes
Yes
Halogen Free
Yes
Yes
Yes
Yes
xx: The output voltage can be designated in the range from 0.8V(08) to 5.5V(55) in 0.1V steps.
(For other voltages, please refer to MARK INFORMATIONS.)
RP132S001E/F doesn't exist.
∗:
The combination of the auto discharge function and delay pin (for setting inrush current limit time) are
follows.
(B) without auto discharge function
(D) with auto discharge function
(E) without auto discharge function, with delay pin (for setting inrush current limit time)
(F) with auto discharge function and delay pin (for setting inrush current limit time)
#:
The auto discharge function at off state are options as follows.
(B) without auto discharge function at off state
(D) with auto discharge function at off state
Auto-discharge function quickly lowers the output voltage to 0V, when the chip enable signal is switched from the active
mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.
4
RP132x
PIN CONFIGURATIONS
•
DFN(PLP)1820-6
Top View
6
5
4
•
SOT-89-5
5
6
•
HSOP-6J
4
6
5
4
•
TO-252-5-P2
Bottom View
4
5
∗
1
1
2
3
3
2
1
2
3
1
2
3
1
2
3
4
5
PIN DESCRIPTIONS
•
DFN(PLP)1820-6
Pin No.
1
2
3
4
5
DELAY
6
V
DD
Symbol
V
OUT
V
FB
GND
CE
NC
Output Pin
Feed Back Pin
Ground Pin
Chip Enable Pin ("H" Active)
No Connection (RP132K001B/D, RP132Kxx1B/D)
Delay Pin (for setting inrush current limit time)
(RP132K001E/F, RP132Kxx1E/F)
Input Pin
Pin Description
∗
Tab is GND level. (They are connected to the reverse side of this IC.) The tab is better to be connected to the
GND, but leaving it open is also acceptable.
・When
using Fixed Output Voltage Type(RP132Kxx1x), the V
OUT
pin and the V
FB
pin should be connected.
・When
using Adjstable Output Voltage Type (RP132K001x), please follow "Notes on the Adjustable Output
Voltage Type Settings".
5
PCB设计
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