RICOH R1163x User Manual

R1163x Series

Manual Mode Shift 150mA LDO with Reverse Current Protection

The R1163x Series are CMOS-based manual mode switching LDO regulators with ECO pin featuring 150mA output. By inputting control signals to the ECO pin, the mode of the regulator can be switched to low power mode or fast response mode, thus making both active and sleep modes available for the system. The built-in reverse current protection circuit prevents the current flow from VOUT to VDD when VOUT is higher than VDD. This feature makes the product ideally suited for backup circuit. Standby mode and auto-discharge function are also available (see Selection Guide). Ceramic capacitors can be used.

FEATURES

• Supply Current (ISS1)··················Typ.	70μA (Fast mode, VIN=SET VOUT+1.0V)	• Output Voltage Accuracy ················· ± 1.5% (Fast mode)
• Supply Current (ISS2)··················Typ.	6μA (Low power mode, same as above)	± 2.5% (Low power mode)
• Standby Current (Istandby)···········Typ.	0.6μA (Same as above, CE="L")	• Temp. coeff. of Output Voltage ·······Typ. ± 100ppm/°C
• Dropout Voltage (VDIF) ···············Typ.	0.25V (Fast mode, IOUT=150mA, VOUT=2.8V)	• Line Regulation·······························Typ. 0.02%/V (Fast mode)
Typ.	0.25V (Low power mode, IOUT=150mA, VOUT=2.8V)	• Fold-back Protection Circuit ···········Current limit Typ. 40mA
• Ripple Rejection (RR)················Typ. 70dB (f=1kHz, Fast mode)		• Auto-Discharge function ·················D Version
• Input Voltage Range (VIN)··········2.0V to 6.0V		• Reverse Current Protection Circuit
• Output Voltage Range (VOUT)·····1.5V to 5.0V (internally fixed)		• Packages········································DFN(PLP)1616-6, SON-6,
		SOT-23-5
		• Ceramic capacitors can be used. ···CIN=1μF or more,

COUT=0.47μF or more

	BLOCK DIAGRAMS
	R1163xxx1B
	(Without Auto-Discharge function)
	ECO
VDD		VOUT
	Vref
	Current Limit
CE	Reverse Detector	GND

R1163xxx1D	R1163xxx1E
(With Auto-Discharge function)	(ECO pin "H" active)

			ECO			ECO
	VDD		VOUT	VDD		VOUT
		Vref
		Current Limit			Vref
					Current Limit
		Reverse
	CE		GND	CE	Reverse Detector	GND
		Detector

SELECTION GUIDES

Halogen Free

Package

Q'ty per Reel

Part No.

DFN(PLP)1616-6

5,000 pcs

R1163K

.xx.

1

.

-TR

SON-6

3,000 pcs

R1163D

.xx.

1

.

-TR-FE

SOT-23-5

3,000 pcs

R1163N

.xx.

1

.

-TR-FE

.xx. : Specify the output voltage within the range of 1.5V (.15.) to 5.0V (.50.) in 0.1V steps.

. : Select from (.B.) without auto-discharge function,

(.D.) with auto-discharge function or (.E.) ECO pin ="H" active.

	PACKAGES (Top View)		TYPICAL CHARACTERISTIC

DFN(PLP)1616-6			SON-6			SOT-23-5
6	5	4	6	5	4	5		4
1	2	3	1	2	3	1	2	3

1	VOUT						1	VDD						1	VDD
2	GND						2	NC						2	GND
3	ECO or						3	VOUT						3	CE
		ECO
4	CE			4				ECO or			4				ECO or
									ECO							ECO
5	NC						5	GND						5	VOUT
6	VDD						6	CE

R1163x281x Dropout Voltage vs. Output Current (Fast Response Mode)

	0.30					ECO=H
VDIF(V)	0.25		85°C
			25°C
	0.20		-40°C
Voltage
	0.15
Dropout	0.10
	0.05
	0
	0	25	50	75	100	125	150
			Output Current IOUT(mA)

) The tab and tab suspension leads on back side are substrate level (GND).

APPLICATIONS
• Power source for hand-held communication equipment, cameras, and VCRs	• Power source for battery-powered equipment
• Very stable voltage reference

No.EK-118-110221

CMOS LDO Regulator

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