DC862A-A datasheet, PDF - EEWORLD Datasheet

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DC862A-A: Descriptionboard eval for ltc3221edc; CategoryDevelopment board/suite/development tools; File Size237KB，4 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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board eval for ltc3221edc

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QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 862

MICROPWER REGULATED CHARGE PUMP DC/DC CONVERTER

LTC3221-3.3, LTC3221-5 and LTC3221

DESCRIPTION

Demonstration circuit 862 is a micropower regulated

charge pump DC/DC converter with the LTC3221 in a

2mmx2mm DFN package. It comes in three assembly

versions, DC862A-A, DC862A-B and DC862A-C, featur-

ing LTC3221EDC-3.3, LTC3221EDC-5, and LTC3221EDC,

respectively. The DC862A-A generates a fixed 3.3V out-

put. The DC862A-B generates a fixed 5V output. The

DC862A-C generates a programmable regulated 3V out-

put. The maximum output current is

60mA.

The LTC3221 draws ultra low quiescent current at no

load to extend battery life. The quiescent current is even

lower than the self-discharging current of many batter-

ies. By adopting a constant current to charge the output,

the output ripple is low even at high input and light load

Table 1. Performance Summary (T

= 25°C)

PARAMETER

Input Voltage Range

CONDITION

DC862A-A

DC862A-B

DC862A-C

Maximum Output Current

DC862A-A: V

> 2V; DC862A-B: V

> 3V;

DC862A-C: V

> 1.8V

DC862A-A

Output Voltage V

OUT

> 2V, I

OUT

< 60mA

1.8V < V

< 2V, I

OUT

< 25mA

> 3V, I

OUT

< 60mA

2.7V < V

< 3V, I

OUT

< 25mA

> 1.8V, I

OUT

< 60mA

DC862A-A

DC862A-B

DC862A-C

= 4.4V

= 5.5V

= 3.8V

600kHz

DC862A-A

Efficiency

DC862A-B

DC862A-C

= 2V, I

OUT

= 60mA

= 2.7V, I

OUT

= 60mA

= 1.8V, I

OUT

= 60mA

82%

86%

82.8%

3.168

MINIMUM

1.8V

2.7V

1.8V

60mA

TYPICAL

MAXIMUM

4.4V

5.5V

3.8V

and is rather constant over the full input voltage range.

This minimizes output capacitor size and reduces solu-

tion cost and space. Built-in soft-start prevents exces-

sive inrush current at turn-on and short-circuit current

limit/thermal protection helps the part survive continu-

ous short-circuit. All these features make the circuit ideal

for the low power and space-constrained applications in

battery powered portable systems.

Design files for this circuit board are available. Call

the LTC factory.

LTC is a trademark of Linear Technology Corporation

3.3

3.432

DC862A-B

DC862A-C

OUT

= 0mA

4.8

2.88

5.2

3.12

40mV

P–P

90mV

P–P

57mV

P–P

Output Ripple V

OUT

(20MHz BW)

OUT

= 60mA

Nominal Switching Frequency

DC862A-A Related Products

	DC862A-A	LTC3221EDC#TRPBF	LTC3221EDC-3.3#TRPBF	LTC3221EDC-5#TRPBF	DC862A-B	DC862A-C	LTC3221EDC-5#TRMPBF	LTC3221EDC#TRMPBF	LTC3221EDC-3.3#TRMPBF	LTC3221EDC-5#PBF
Description	board eval for ltc3221edc	IC reg switched cap dbl adj 6dfn	IC reg switchd cap dbl 3.3V 6dfn	IC reg switched cap dbl 5V 6dfn	board eval for ltc3221edc	board eval for ltc3221edc	IC REG SWTCHD CAP 5V 60MA 6DFN	IC REG SWTCHD CAP ADJ 60MA 6DFN	IC REG SWTCHD CAP 3.3V 60MA 6DFN	Output current: 60mA Switch operating frequency: 600kHz Output type: Fixed Number of output voltage channels: 1 Function type: Step-Up Output configuration: Positive
Brand Name	-	Linear Technology	Linear Technology	Linear Technology	-	-	Linear Technology	Linear Technology	Linear Technology	Linear Technology
Is it Rohs certified?	-	conform to	conform to	conform to	-	-	conform to	conform to	conform to	conform to
Maker	-	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	-	-	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )
Parts packaging code	-	DFN	DFN	DFN	-	-	DFN	DFN	DFN	DFN
package instruction	-	HVSON, SOLCC6,.08,20	HVSON, SOLCC6,.08,20	HVSON, SOLCC6,.08,20	-	-	HVSON,	HVSON,	HVSON,	HVSON, SOLCC6,.08,20
Contacts	-	6	6	6	-	-	6	6	6	6
Manufacturer packaging code	-	DC6	DC6	DC6	-	-	DC6	DC6	DC6	DC6
Reach Compliance Code	-	compli	compli	compli	-	-	compliant	compliant	compliant	compliant
ECCN code	-	EAR99	EAR99	EAR99	-	-	EAR99	EAR99	EAR99	EAR99
Analog Integrated Circuits - Other Types	-	SWITCHED CAPACITOR REGULATOR	SWITCHED CAPACITOR REGULATOR	SWITCHED CAPACITOR REGULATOR	-	-	SWITCHED CAPACITOR REGULATOR	SWITCHED CAPACITOR REGULATOR	SWITCHED CAPACITOR REGULATOR	SWITCHED CAPACITOR REGULATOR
Maximum input voltage	-	5.5 V	4.4 V	5.5 V	-	-	5.5 V	5.5 V	4.4 V	5.5 V
Minimum input voltage	-	1.8 V	1.8 V	2.7 V	-	-	2.7 V	1.8 V	1.8 V	2.7 V
Nominal input voltage	-	2.5 V	2.5 V	3 V	-	-	3 V	2.5 V	2.5 V	3 V
JESD-30 code	-	S-PDSO-N6	S-PDSO-N6	S-PDSO-N6	-	-	S-PDSO-N6	S-PDSO-N6	S-PDSO-N6	S-PDSO-N6
JESD-609 code	-	e3	e3	e3	-	-	e3	e3	e3	e3
length	-	2 mm	2 mm	2 mm	-	-	2 mm	2 mm	2 mm	2 mm
Humidity sensitivity level	-	1	1	1	-	-	1	1	1	1
Number of functions	-	1	1	1	-	-	1	1	1	1
Number of terminals	-	6	6	6	-	-	6	6	6	6
Maximum operating temperature	-	70 °C	70 °C	70 °C	-	-	70 °C	70 °C	70 °C	70 °C
Package body material	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	-	HVSON	HVSON	HVSON	-	-	HVSON	HVSON	HVSON	HVSON
Package shape	-	SQUARE	SQUARE	SQUARE	-	-	SQUARE	SQUARE	SQUARE	SQUARE
Package form	-	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	-	-	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	-	260	260	260	-	-	260	260	260	260
Certification status	-	Not Qualified	Not Qualified	Not Qualified	-	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	-	0.8 mm	0.8 mm	0.8 mm	-	-	0.8 mm	0.8 mm	0.8 mm	0.8 mm
surface mount	-	YES	YES	YES	-	-	YES	YES	YES	YES
Switch configuration	-	DOUBLER INVERTER	DOUBLER INVERTER	DOUBLER INVERTER	-	-	DOUBLER INVERTER	DOUBLER INVERTER	DOUBLER INVERTER	DOUBLER INVERTER
Maximum switching frequency	-	600 kHz	600 kHz	600 kHz	-	-	600 kHz	600 kHz	600 kHz	600 kHz
technology	-	CMOS	CMOS	CMOS	-	-	CMOS	CMOS	CMOS	CMOS
Temperature level	-	COMMERCIAL	COMMERCIAL	COMMERCIAL	-	-	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal surface	-	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	-	-	Matte Tin (Sn)	Matte Tin (Sn)	Tin (Sn)	Matte Tin (Sn)
Terminal form	-	NO LEAD	NO LEAD	NO LEAD	-	-	NO LEAD	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	-	0.5 mm	0.5 mm	0.5 mm	-	-	0.5 mm	0.5 mm	0.5 mm	0.5 mm
Terminal location	-	DUAL	DUAL	DUAL	-	-	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	-	30	30	30	-	-	30	30	30	30
width	-	2 mm	2 mm	2 mm	-	-	2 mm	2 mm	2 mm	2 mm

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