RICOH R1162x User Manual

R1162x SERIES

3-MODE 150mA LDO REGULATOR

NO.EA-110-120404

OUTLINE

The R1162x Series consist of CMOS-based voltage regulator ICs with high output voltage accuracy and low supply current. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a current limit circuit, and so on. The output voltage is internally fixed with high accuracy.

These ICs perform with the chip enable function and realize a standby mode with ultra low supply current. To prevent the destruction by over current, the current limit circuit is included. The R1162x Series have 3-mode. One is standby mode with CE or standby control pin. Other two modes are realized with ECO pin. Fast Transient Mode (FT mode) and Low Power Mode (LP mode) are alternative with ECO pin. Consumption current is reduced at Low Power Mode compared with Fast Transient Mode. The output voltage is maintained between FT mode and LP mode.

Since the packages for these ICs are SOT-23-5 (Limited) and SON1612-6 packages, high density mounting of the ICs on boards is possible.

FEATURES

• Supply Current .......................................................		Typ. 5.5μA (Low Power Mode),
		Typ. 70μA (Fast Transient Mode)
• Standby Current .....................................................		Typ. 0.1μA
• High Ripple Rejection ............................................		Typ. 70dB (f=1kHz, Fast Transient Mode)
		Typ. 60dB (f=10kHz, Fast Transient Mode)
•	Input Voltage Range ..............................................	2.0V to 6.0V
•	Output Voltage Range............................................	1.5V to 4.0V (0.1V steps)
		(For other voltages, please refer to MARK INFORMATIONS.)
• Output Voltage Accuracy........................................		±2.0% (±3.0% at Low Power Mode)
•	Temperature-Drift Coefficient of Output Voltage ....	Typ. ±100ppm/°C
• Dropout Voltage .....................................................		Typ. 0.25V (IOUT=150mA , VOUT=2.8V)
•	Line Regulation ......................................................	Typ. 0.02%/V
•	Package ...............................................................	SON1612-6, SOT-23-5 (Limited)
•	Built-in fold-back protection circuit .........................	Typ. 40mA (Current at short mode)
• Performs with Ceramic Capacitors ........................		CIN=1.0μF,COUT=0.47μF

APPLICATIONS

•Precision Voltage References.

•Power source for electrical appliances such as cameras, VCRs and hand-held communication equipment.

•Power source for battery-powered equipment.

1

R1162x

BLOCK DIAGRAM

R1162xxx1B						R1162xxx1D
			ECO						ECO

VDD

Vref

Current Limit

CE

VOUT

VDD

VOUT

Vref

Current Limit

GND

CE

GND

SELECTION GUIDE

The output voltage, auto discharge function, and package, etc. for the ICs can be selected at the user’s request.

Product Name	Package	Quantity per Reel	Pb Free	Halogen Free
R1162Dxx1 -TR-FE	SON1612-6	4,000 pcs	Yes	Yes
R1162Nxx1 -TR-FE	SOT-23-5 (Limited)	3,000 pcs	Yes	Yes

xx: The output voltage can be designated in the range from 1.5V(15) to 4.0V(40) in 0.1V steps. (For other voltages, please refer to MARK INFORMATIONS.)

: 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

The products scheduled to be discontinued (be sold to limited customer) : "Limited"

These products will be discontinued in the future. You can not select these products newly.

We will provide these products to the customer who has been using or has ordered them before. But we recommend changing to other products as soon as possible.

2

R1162x

PIN CONFIGURATIONS

• SON1612-6
6	5	4
1	2	3

• SOT-23-5

5 4

(mark side)

1 2 3

PIN DESCRIPTIONS

• SON1612-6

Pin No	Symbol	Pin Description
1	CE	Chip Enable Pin ("H" Active)
2	GND	Ground Pin
3	VDD	Input Pin
4	VOUT	Output Pin
5	GND	Ground Pin
6	ECO	MODE alternative pin

• SOT-23-5 (Limited)

Pin No	Symbol	Pin Description
1	VDD	Input Pin
2	GND	Ground Pin
3	CE	Chip Enable Pin ("H" Active)
4	ECO	MODE alternative pin
5	VOUT	Output pin

3

R1162x

ABSOLUTE MAXIMUM RATINGS

	Symbol			Item	Rating	Unit
	VIN	Input Voltage			6.5	V
	VECO	Input Voltage (ECO Pin)			−0.3 to 6.5	V
	VCE	Input Voltage (		/ CE Pin)	−0.3 to 6.5	V
			CE
	VOUT	Output Voltage			−0.3 to VIN+0.3	V
	IOUT	Output Current			180	mA
	PD	Power Dissipation (SOT-23-5) (Limited)			420	mW
		Power Dissipation (SON1612-6)			500	MW
	Topt	Operating Temperature Range			−40 ~ 85	°C
	Tstg	Storage Temperature Range			−55 ~ 125	°C

) For Power Dissipation, please refer to PACKAGE INFORMATION.

ABSOLUTE MAXIMUM RATINGS

Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and system using the device in the field.

The functional operation at or over these absolute maximum ratings is not assured.

RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)

All of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. And the semiconductor devices may receive serious damage when they continue to operate over the recommended operating conditions.

4

R1162x

ELECTRICAL CHARACTERISTICS

• R1162xxx1B/D

Topt=25°C

Symbol

Item

Conditions

Min.

Typ.

Max.

Unit

VIN = Set VOUT+1V VECO = VIN

VOUT

VOUT

V

<

<

Note 1

×0.98

×1.02

VOUT

Output Voltage

1mA =

IOUT = 30mA

VIN = Set VOUT + 1V VECO =GND

VOUT

VOUT

V

<

<

Note 2

×0.97

×1.03

1mA =

IOUT = 30mA

Output Voltage Deviation

VIN = Set VOUT+1V, IOUT =30mA

−1.2

0.0

1.2

%

VOUT

between FT Mode and LP

<

2.0V

VOUT =

Mode

>

2.0V

(−24)

0.0

(24)

mV

VOUT =

IOUT

Output Current

VIN − VOUT = 1.0V

150

mA

Load Regulation(FT Mode)

VIN =Set VOUT+1V, VECO=VIN

20

40

mV

VOUT/

<

<

1mA =

IOUT = 150mA

IOUT

Load Regulation(LP Mode)

VIN = Set VOUT+1V,VECO=GND

20

45

mV

<

<

1mA =

IOUT = 150mA

VDIF

Dropout Voltage

Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE

ISS1

Supply Current(FT Mode)

VIN = Set VOUT+1V

70

100

μA

VECO = VIN, IOUT=0mA

ISS2

Supply Current(LP Mode)

VIN = Set VOUT+1V

5.5

9.0

μA

VECO = GND, IOUT=0mA

Istandby

Supply Current (Standby)

VIN = VCE = Set VOUT+1V

0.1

1.0

μA

Set VOUT+0.5V = VIN = 6.0V

<

<

VOUT/

Line Regulation(FT Mode)

IOUT = 30mA, VECO = VIN

0.02

0.10

%/V

VOUT =

1.6V: 2.2V =

VIN = 6.0V

<

<

<

VIN

Set VOUT + 0.5V = VIN = 6.0V

<

<

Line Regulation(LP Mode)

IOUT = 30mA, VECO = GND

0.05

0.20

%/V

VOUT =

1.6V: 2.2V =

VIN = 6.0V

<

<

<

f = 1kHz

70

RR

Ripple Rejection(FT Mode)

f = 10kHz,Ripple 0.2Vp-p

60

dB

VIN = Set VOUT + 1V

IOUT = 30mA, VECO = VIN

VIN

Input Voltage

2.0

6.0

V

VOUT/

Output Voltage

IOUT = 30mA

±100

ppm

Topt

Temperature Coefficient

−40°C

<

<

/°C

=

Topt = 85°C

ISC

Short Current Limit

VOUT = 0V

40

mA

IPD

CE Pull-down

0.3

0.6

μA

Constant Current

RPD

ECO Pull-down Resistance

2

5

30

MΩ

VCEH

CE, ECO Input Voltage “H”

1.0

6.0

V

VCEL

CE, ECO Input Voltage “L”

0.00

0.35

V

en

Output Noise (Fast Mode)

BW = 10Hz to 100kHz

30

μVrms

en

Output Noise

BW = 10Hz to 100kHz

40

μVrms

(Low Power Mode)

Nch On resistance for

RLOW

auto-discharge

VCE=0V

60

Ω

(Applied to D version)

5

R1162x

ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE

																										Topt = 25°C
Output Voltage														Dropout Voltage (mV)
													VDIF(ECO=H)												VDIF(ECO=L)
	VOUT (V)			Condition
													Typ.							Max.					Typ.	Max.
1.5	<	VOUT<1.6										400				680									420	680
	=
1.6	<	VOUT<1.7										380				550									390	550
	=
1.7 =< VOUT<1.8				IOUT = 150mA								350				520									370	520
1.8	<	VOUT<2.0										340				490									350	490
	=
2.0	<	VOUT<2.8										290				425									300	430
	=
2.8 =< VOUT =< 4.0												250				350									250	350
TYPICAL APPLICATION
			IN																			OUT
											VDD				OUT
					C1								R1162x
													SERIES
											GND									C2
													CE		ECO
											CE

(External Components)

C2 Ceramic 0.47μF Ex. Murata GRM40B474K

Kyocera CM105B474K

C1 Ceramic 1.0μF

6

R1162x

TYPICAL CHARACTERISTICS Unless otherwise provided, capacitors are ceramic type.

1) Output Voltage vs. Output Current

R1162x15x (ECO=H) R1162x15x (ECO=L)

	1.6
OUTH(V)	1.4
	1.2		VIN=2V
V	1.0			VIN=2.5V • 3.5V
H
Voltage	0.8
	0.6
Output	0.4
	0.2
	0.0
	0	100	200	300	400
		Output Current IOUT(mA)

	1.6
OUTL(V)	1.4
	1.2		VIN=2V
L V	1.0			VIN=2.5V • 3.5V
Voltage	0.8
	0.6
Output	0.4
	0.2
	0.0
	0	100	200	300	400
		Output Current IOUT(mA)

R1162x28x (ECO=H)

	3.0
OUTH(V)	2.5	VIN=3.1V
	2.0	VIN=3.3V
H V				VIN=3.8V • 4.8V
Voltage	1.5
	1.0
Output	0.5
	0.0
	0	100	200	300	400
		Output Current IOUT(mA)

R1162x28x (ECO=L)

	3.0
OUTL(V)	2.5	VIN=3.1V
	2.0	VIN=3.3V
L V				VIN=3.8V • 4.8V
Voltage	1.5
	1.0
Output
	0.5
	0.0
	0	100	200	300	400
		Output Current IOUT(mA)

R1162x40x (ECO=H)

	4.5
OUTH(V)	4.0	VIN=4.3V
	3.5
		VIN=4.5V
	3.0
H V				VIN=5.0V • 6.0V
	2.5
Voltage
	2.0
	1.5
Output	1.0
	0.5
	0.0
	0	100	200	300	400
		Output Current IOUT(mA)

R1162x40x (ECO=L)

	4.5
OUTL(V)	4.0	VIN=4.3V
	3.5
		VIN=4.5V
	3.0
L V				VIN=5.0V • 6.0V
	2.5
Voltage
	2.0
	1.5
Output
	1.0
	0.5
	0.0
	0	100	200	300	400
		Output Current IOUT(mA)

7

R1162x

2) Output Voltage vs. Input Voltage

R1162x15x (ECO=H)

H(V)OUT	1.6
	1.4
	1.2
V	1.0
H
Voltage	0.8
	0.6
Output	0.4				IOUT=1mA
	0.2				IOUT=30mA
	0.0				IOUT=50mA
	0	1	2	3	4	5	6
			Input Voltage VIN(V)
		R1162x28x (ECO=H)
VOUTH(V)	3.0
	2.0
	2.5
H	1.0
Voltage
	1.5
Output	0.5				IOUT=1mA
					IOUT=30mA
	0.0				IOUT=50mA
	0	1	2	3	4	5	6
			Input Voltage VIN(V)

R1162x40x (ECO=H)

	4.5
VOUTH(V)	4.0
	3.5
	3.0
H	2.5
Voltage
	2.0
	1.5
Output	1.0				IOUT=1mA
	0.5				IOUT=30mA
					IOUT=50mA
	0.0
	0	1	2	3	4	5	6
			Input Voltage VIN(V)

		R1162x15x (ECO=L)
	1.6
OUTL(V)	1.4
	1.2
L V	1.0
Voltage	0.8
Output	0.6				IOUT=30mA
	0.2
	0.4				IOUT=1mA
	0.0				IOUT=50mA
	0	1	2	3	4	5	6
			Input Voltage VIN(V)

R1162x28x (ECO=L)

	3.0
VOUTL(V)	2.5
	2.0
L
Voltage	1.5
	1.0
Output					IOUT=1mA
	0.5
					IOUT=30mA
					IOUT=50mA
	0.0
	0	1	2	3	4	5	6
			Input Voltage VIN(V)

		R1162x40x (ECO=L)
	4.5
VOUTL(V)	4.0
	3.0
	3.5
L	2.5
Voltage
	2.0
Output	1.5				IOUT=1mA
	0.5
	1.0
					IOUT=30mA
	0.0				IOUT=50mA
	0	1	2	3	4	5	6
			Input Voltage VIN(V)

8

3) Supply Current vs. Input Voltage

R1162x15x (ECO=H)

	80
A)	70
μ
H(SS	60
H I	50
Current	40
Supply	30
	10
	20
	0

0	1	2	3	4	5	6
		Input Voltage VIN(V)

R1162x28x (ECO=H)

	80
A)	70
μ
H(SS	60
H I	50
Current	40
Supply	30
	10
	20
	0

0	1	2	3	4	5	6
		Input Voltage VIN(V)

R1162x40x (ECO=H)

	80
A)	70
μ	60
SSH(
H I	50
Current	40
	30
Supply	20
	10
	0
	0	1	2	3	4	5	6
			Input Voltage VIN(V)

R1162x

R1162x15x (ECO=L)

		7
	A)	6
	SSL(μ	5
	L I	4
	Current
		3
	Supply	2
		1
		0

0	1	2	3	4	5	6
		Input Voltage VIN(V)

R1162x28x (ECO=L)

		11
	μA)	10
		9
	SSL(	8
	L I	7
	Current	6
		4
		5
	Supply	3
		2

1

0

0	1	2	3	4	5	6
		Input Voltage VIN(V)

R1162x40x (ECO=L)

		12
	μA)	11
		10
	ISSL(	9
		8
	L	7
	Current	6
		5
	Supply	4
		3

2

1

0

0	1	2	3	4	5	6
		Input Voltage VIN(V)

9