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UC2306L-AD-S08-R

更新时间：2024-09-18 19:04:38

品牌：UTC

描述：Switching Regulator, 1.2A, PDSO8, LEAD FREE, SOP-8

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UC2306L-AD-S08-R 概述

Switching Regulator, 1.2A, PDSO8, LEAD FREE, SOP-8 开关式稳压器或控制器

UC2306L-AD-S08-R 规格参数

是否Rohs认证：	符合	生命周期：	Active
零件包装代码：	SOIC	包装说明：	LEAD FREE, SOP-8
针数：	8	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.66	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
最大输入电压：	8 V	最小输入电压：	1.65 V
标称输入电压：	2 V	JESD-30 代码：	R-PDSO-G8
长度：	4.92 mm	功能数量：	1
端子数量：	8	最高工作温度：	70 °C
最低工作温度：		最大输出电流：	1.2 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
座面最大高度：	1.96 mm	表面贴装：	YES
切换器配置：	BOOST	温度等级：	COMMERCIAL
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	3.95 mm	Base Number Matches：	1

UC2306L-AD-S08-R 数据手册

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UNISONIC TECHNOLOGIES CO., LTD

UC2306

LINEAR INTEGRATED CIRCUIT

MICROPOWER DC/DC

CONVERTERS WITH

LOW-BATTERY DETECTOR

ACTIVE IN SHUTDOWN

DIP-8



DESCRIPTION

The UTC UC2306 is a step-up DC/DC converter which

operate from a wide input supply range of 1.5V to 8V. Its

peak switch current can be reduced by adding a single

resistor at the I_LIMpin. It is an ideal for use in small, low

voltage, battery-operated systems.

SOP-8



FEATURES

*In shutdown mode:10μA quiescent current.

*Low battery detector active

*Minimum Operating Voltage: 1.5V

*Very Low V_CESAT:370mV@1A (typ).

*In active mode :120μA quiescent current.

*Only by one resistor: peak current is programmable.

 ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

UC2306L-xx-D08-T

UC2306L-xx-S08-T

UC2306L-xx-S08-R

UC2306G-xx-D08-T

UC2306G-xx-S08-T

UC2306G-xx-S08-R

DIP-8

SOP-8

Tube

Tape Reel

UC2306L-xx-D08-T

(1)Packing Type

(1) T: Tube, R: Tape Reel

(2) D08: DIP-8, S08: SOP-8

(2)Package Type

(3)Voltage Code

(4)Lead Plating

(3) xx: refer to Output Voltage Code

(4) L: Lead Free, G: Halogen Free

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UC2306

LINEAR INTEGRATED CIRCUIT



MARKING INFORMATION

PACKAGE

VOLTAGE CODE

MARKING

33: 3.3V

50: 5.0V

AD: ADJ

DIP-8

SOP-8



PIN CONFIGURATION

LBI

LBO

VIN

FB(SENSE)

SHDN

ILI M

GND



PIN DESCRIPTION

PIN No.

SYMBOL

LBI

DESCRIPTION

Input of Low Battery Detector. Detector output is low when voltage on this pin is less

than 1.17V.

LBO

V_IN

Output of Low Battery Detector.

Input Voltage Supply.

The Collector Pin of Power NPN.

GND

Ground.

Pin For Current Limit Set. Connected to nothing for 1A peak switch current; and

connect to a resistor to ground will lower peak current

Input of Shutdown.Held low, then switching regulator is turned off. This Pin should not

be float. When SHDN mode is not used, connect it to V_IN

This pin connects to the resistor divider. In shutdown mode,the divider is disconnected

from it.

I_LIM

SHDN

FB/SENSE

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QW-R103-029.C

UC2306

LINEAR INTEGRATED CIRCUIT



BLOCK DIAGRAMS

R₃

1.5V

UNDER

VOLTAGE

LOCKOUT

TIMERS 6μs ON

1.5μs OFF

ENABLE

V_IN

C₁

R₄

1.24V

V_REF

DRIVER

36mV

L₁

R₁

7.2Ω

LBO

R₂

LBI

Q₁

×200

Q₂

×1

D₁

1.17V

BIAS -1V

Q₃

V_OUT

C₂

ILIM

SHUTDOWN

SHDN

GND

UC2306 Block Diagram.

Note：A3 Remains Alive When Device Is in Shutdown

UC2306-3.3/UC2306-5.0 Block Diagram

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UC2306

LINEAR INTEGRATED CIRCUIT



ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

V_IN

RATING

UNIT

Input Voltage

SW Voltage

V_SW

-0.4 ~ +25

FB Voltage(UC2306)

I_LIMVoltage(UC2306-3.3/UC2306-5.0)

SHDN Voltage

V_FB

V_IN+0.3

V_ILIM

V_SHDN

V_LBI

V_IN

LBI Voltage

LBO Voltage

V_LBO

P_D

Maximum Power Dissipation

Junction Temperature

Operating Temperature

Storage Temperature

500

C

T_J

125

T_OPR

T_STG

-20 ~ +85

-65 ~ +150

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



ELECTRICAL CHARACTERISTICS (V_IN=2V, V_SHDN=2V, unless otherwise specified)

PARAMETER

SYMBOL

V_CC(MIN)

V_IN

TEST CONDITIONS

MIN

TYP MAX UNIT

Minimum Operating Voltage

Operating Voltage

1.5

1.65

V _SHDN=2V, Not switching(Note)

V_SHDN=0V, V_IN=2V(Note)

V_SHDN=0V, V_IN=5V(Note)

(Note)

Quiescent Current

I_Q

120

200

µA

Quiescent Current In Shutdown

I_SD

Comparator Trip Point

FB Pin Bias Current

1.22

1.10

1.24

1.26

I_FB

(Note)

V _SHDN=0V, Fixed Output

Versions(Note)

Sense Pin Leakage in Shutdown

I_LEAK(SD)

0.002

µA

Line Regulation

∆V_OUT1.8V≤V_IN≤8V (Note)

0.04

1.17

0.15

1.25

%/V

LBI Input Threshold

LBI Bias Current

V_LBI(THR)Falling Edge(Note)

I_{LBI (BIAS)}

(Note)

LBI Input Hysteresis

LBO Output Voltage Low

LBO Output Leakage Current

I_{LBI (HYS)}(Note)

V_LBO(OL)I_SINK=500µA(Note)

0.2

0.01

0.4

0.1

I_LBO(LEAK)

LBI=1.5V, LBO=5V(Note)

(Note)

µA

High

Low

1.4

SHDN Input Voltage

SHDN

(Note)

V _SHDN=5V(Note)

V _SHDN=0V(Note)

0.4

-2

µA

µs

I _SHDN

SHDN Pin Bias Current

-5

Switching Off Time

Switch On Time

t_OFF

t_ON

(Note)

1.5

Current Limit Not Asserted (Note)

Maximum Duty Cycle

t_DUTY

0.8

1.2

_LIMPin Open, V_IN=5V

Peak Switch Current

I _(SW)

20K from I_LIMto GND

Isw=1A

500

0.37

0.26

0.01

Switch Saturation Voltage

Switch Leakage

V_SW(SAT)

Isw=700mA(Note)

0.35

I_LEAK(SW)Switch off, Vsw=5V

µA

Note: Denotes specifications which apply over the 0C to 70C operating temperature range.

UNISONIC TECHNOLOGIES CO., LTD

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QW-R103-029.C

UC2306

LINEAR INTEGRATED CIRCUIT



TYPICAL APPLICATION

Super Burst Low IQ DC/DC Converter

MBRS130L

μ H

I_Q≈ 10μA

100mA

0.01μF

3.83M

(1%metal film)

V IN

LBO

LBI

200K

47K

UC2306

100 μF

2 CELLS

ILIM

1.21M

220 μ F

GND

SHDN

(1%metal film)

22K

2N3906

47K

UNISONIC TECHNOLOGIES CO., LTD

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QW-R103-029.C

UC2306

LINEAR INTEGRATED CIRCUIT



TYPICAL APPLICATION(Cont.)

3.3V SEPIC Efficiency(Step-Up/Step-Down Converter)

MBRS130L

L1A

V_IN

2.5V to 8V

C₁

1 μF

C₂

47 μ F

16V

V_IN

L1B*

UC2306-3.3

3.3V

300mA

SENSE

GND

SHDN

I LIM

SHUTDOWN

C₃

100μF

10V

5V SEPIC (Step-Up/Step-Down Converter)

MBRS130L

L1A

V_IN

3V to 8V

C₁

1 μF

47 μ F

V_IN

L1B

16V

UC2306-5.0

200mA

SENSE

GND

SHDN

I LIM

SHUTDOWN

100μF

10V

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UC2306

LINEAR INTEGRATED CIRCUIT



TYPICAL APPLICATION(Cont.)

Single Li-lon Cell to 5V Converter with Load Disconnect at V_IN＜2.7V

22μH

MBRS130L

562k

220k

V_OUT

V_IN2

100μF

V_OUT

V_IN1

V_IN

ILIM

SENSE

SINGLE

LI-ION

CELL

LBI

UC2306-5.0

432k

V_INS

V_IN3

SHDN

GND

LBO

GND

100μF

10V

1μF

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QW-R103-029.C

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UC2306

LINEAR INTEGRATED CIRCUIT



TYPICAL APPLICATION(Cont.)

2- TO 4- Cell to 5V Converter with Output Disconnect

ZTX788B

L₁

22μH

MBRS130L

100mA

V_IN

2V to 6V

SENSE

V_IN

UC2306-5.0

47μF

SHUTDOWN

SHDN

ILIM

GND

22μF

220μF

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QW-R103-029.C

UC2306

LINEAR INTEGRATED CIRCUIT



TYPICAL APPLICATION(Cont.)

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UC2306

LINEAR INTEGRATED CIRCUIT



TYPICAL CHARACTERISTICS

Super Burst Efficiency

VIN=3V

VIN=2V

0.1

1.0

100

0.01

Load Current (m)

5V to 12V Converter Efficiency

100

300

Load Current(mA)

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QW-R103-029.C

UC2306

LINEAR INTEGRATED CIRCUIT



TYPICAL CHARACTERISTICS(Cont.)

Peak Switch Current Limit

1.3

Switch Saturation Voltage

T_A=25°C

500

400

1.2

1.1

300

200

1.0

0.9

0.8

0.7

0.6

100

-50 -25

75 100

0.2

0.4

0.6

0.8 1.0 1.2

Temperature(°C)

Switch Current (A)

On-and Off-times

Feedback Voltage

1.250

1.245

1.240

1.235

1.230

Maximum On-

Time

1.225

1.220

1.215

1.210

1.205

1.200

Off-Time

-50 -25

75 100

-50 -25

75 100

Temperature(°C)

Supply Current

Feedback Pin Bias Current

300

250

T_A=25°C

VSHDN=VN

NOT SWITCHING

200

150

100

VSHDN= 0 V

-50 -25

75 100

Temperature(°C)

Input Voltage (V)

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QW-R103-029.C

UC2306

LINEAR INTEGRATED CIRCUIT

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.

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QW-R103-029.C

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