Ricoh EK-182-40930 - Manual

RP200x Series

Manual/Automatic Mode Shift Low Voltage 300mA LDO

No.EK-182-40930

300mA CMOS LDO Regulator

The RP200x Series are CMOS-based manual/automatic mode shift LDO regulators featuring 300mA output. In auto switching mode,
the operation can switch automatically to fast response mode or low power mode of the ECO function according to output current.
(Automatic switching to fast response mode under I

OUT

>8mA conditions or to low power mode under I

OUT

<1mA conditions.) In low

power mode, supply current is as low as 1.5

μ

A. In fast response mode, ripple rejection is 70dB and noise is low. By inputting control

signal into the AE pin, the mode of the regulator can be fixed with fast response mode. In addition to SOT-23-5 package, a 0.69mm
square WLCSP-4-P5 package and a 1.2mm square DFN(PLP)1212-6 are also available.

FEATURES

•

Supply Current (I

SS2

) ··················· Typ. 55

μ

A (Fast mode, V

IN

=V

SET

+1.0V)

•

Supply Current (I

SS1

) ··················· Typ. 1.5

μ

A (Low power mode, same as above)

•

Standby Current (I

standby

) ·············· Typ. 0.1

μ

A (Same as above, CE="L")

•

Dropout Voltage (V

DIF

) ················ Typ. 0.23V (I

OUT

=300mA, V

SET

=2.8V)

•

Ripple Rejection (RR) ················· Typ. 70dB (f=1kHz, Fast mode)

•

Input Voltage Range (V

IN

) ············ 1.4V to 5.25V (Absolute maximum rating : 6.0V)

•

Output Voltage Range (V

OUT

) ······· 0.8V to 4.0V (Internally fixed)

•

Output Voltage Accuracy ·············

±

1%

•

Temp. coeff. of Output Voltage ······ Typ.

±

50ppm/

°

C

•

Line Regulation ························· Typ. 0.02%/V (Fast mode)

•

Fold-back Protection Circuit ········· Current limit Typ. 50mA

•

Auto-discharge Function ·············· D Version

•

Packages ································· WLCSP-4-P5, DFN(PLP)1212-6,

SOT-23-5

•

Ceramic capacitor can be used. ···· 1

μ

F or more

(The above shows specification at Topt=25

°

C. Design assurance value at -40

°

C

≤

Topt

≤

85

°

C is also available. For details, please refer to the datasheet.)

BLOCK DIAGRAMS

RP200xxx1B RP200xxx1D

(Without Auto-discharge function)

(With Auto-discharge function)

V

DD

GND

V

OUT

CE

Vref

Current Limit

V

DD

GND

V

OUT

CE

Vref

Current Limit

SELECTION GUIDES

Halogen Free Package Q'ty per Reel Part

No.

.

xx

.

: Specify the output voltage within the range of 0.8V (

.

08

.

) to 4.0V (

.

40

.

)

in 0.1V steps

.

∗

: Select from (

.

B

.

) without auto-discharge function or

(

.

D

.

) with auto-discharge function

WLCSP-4-P5 5,000

pcs

RP200Z

.

xx

.

1

.

∗

-TR-F

DFN(PLP)1212-6 5,000

pcs RP200K

.

xx

.

1

.

∗

-TR

SOT-23-5 3,000

pcs

RP200N

.

xx

.

1

.

∗

-TR-FE

PACKAGES (Top View)

TYPICAL CHARACTERISTIC

WLCSP-4-P5

DFN(PLP)1212-6

SOT-23-5

RP200x261x Dropout Voltage vs. Output Current

85

°

C

25

°

C

- 40

°

C

0

350

200

300

100

150

250

50

0

200

100

300

Output Current I

OUT

(mA)

Dropout V

oltage V

DIF

(mV)

2

1

3

4

3

4

2

5

1

6

1 3

5 4

2

1 V

DD

2 CE
3 GND
4 V

OUT

1 AE
2 GND
3 CE
4 V

DD

5 NC
6 V

OUT

1 V

DD

2 GND
3 CE
4 AE
5 V

OUT

∗

) WLCSP-4-P5 does not exist AE pin.

APPLICATIONS

•

Power source for hand-held communication equipment, camera and VCRs

•

Power source for home appliances and digital home appliances

•

Power source for battery-powered equipment

AE

AE