34704 参数 Datasheet PDF下载

型号：	34704
PDF下载：	下载PDF文件查看货源
内容描述：	多通道DC-DC电源管理IC [Multiple Channel DC-DC Power Management IC]
分类和应用：
文件页数/大小：	54 页 / 1389 K
品牌：	FREESCALE [ Freescale ]

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

Table 4. Static Electrical Characteristics (continued)

Characteristics noted under conditions 2.7 V ≤ V_IN≤ 5.5 V, -20°C ≤ T_A≤ 85°C, GND = 0 V, unless otherwise noted. Typical

values noted reflect the approximate parameter means at T_A= 25°C under nominal conditions, unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

REGULATOR 4

Output Voltage Range

Output Accuracy

V_OUT

0.6

1.8

3.6

-2.0

2.0

Line/Load Regulation⁽¹³⁾

REG_LN/LD

-1.0

0.600⁽¹⁴⁾

1.0

Feedback Reference Voltage

Dynamic Voltage Scaling Range

V_DYN

V_{DYN_STEP}

I_OUT

-10

Dynamic Voltage Scaling Step Size

Continuous Output Current⁽¹³⁾

1.0

100

1.5

2.25

300

Over-current Limit (Detected in buck high side FET)

Short-circuit Current Limit (Detected in buck high side FET)

Over-current Limit Accuracy

I_{LIM_ION}

I_{SHORT_ION}

-20

N-CH Buck Switch Power MOSFET R_DS(ON)

N-CH Buck Synch. Power MOSFET R_DS(ON)

N-CH Boost Switch Power MOSFET R_DS(ON)

N-CH Boost Synch. Power MOSFET R_DS(ON)

Discharge MOSFET R_DS(ON)

Thermal Shutdown Threshold⁽¹³⁾

Thermal Shutdown Hysteresis⁽¹³⁾

R_{DS(ON) SW}

R_{DS(ON) SY}

R_{DS(ON) SW}

R_{DS(ON) SY}

R_{DS(ON) DIS}

200

600

200

600

mΩ

T_SD

170

°C

μA

T_SD-HYS

PVIN4 Leakage Current (Off State) @25°C

SW4D Leakage Current (Off State) @25°C

SW4U Leakage Current (Off State) @25°C

REGULATOR 5

I_{PVIN4_LKG}

I_{SW4D_LKG}

I_{SW4U_LKG}

1.0

Output Voltage Range

V_OUT

0.6

3.3

3.6

Output Accuracy

-2.0

2.0

Line/Load Regulation⁽¹³⁾

REG_LN/LD

-1.0

1.0

0.600⁽¹⁴⁾

Feedback Reference Voltage

Dynamic Voltage Scaling Range

V_DYN

V_{DYN_STEP}

I_OUT

-17.5

17.5

Dynamic Voltage Scaling Step Size

Continuous Output Current⁽¹³⁾

2.5

150

1.4

2.1

500

Over-current Limit (Detected in buck high side FET)

Short-circuit Current Limit (Detected in buck high side FET)

Over-current Limit Accuracy

I_{LIM_ION}

I_{SHORT_ION}

-20

N-CH Buck Switch Power MOSFET R_DS(ON)

N-CH Buck Synch. Power MOSFET R_DS(ON)

N-CH Boost Switch Power MOSFET R_DS(ON)

N-CH Boost Synch. Power MOSFET R_DS(ON)

Discharge MOSFET R_DS(ON)

Thermal Shutdown Threshold⁽¹³⁾

Thermal Shutdown Hysteresis⁽¹³⁾

R_{DS(ON) SW}

R_{DS(ON) SY}

R_{DS(ON) SW}

R_{DS(ON) SY}

R_{DS(ON) DIS}

120

1000

120

mΩ

T_SD

170

°C

T_SD-HYS

Notes:

13. Guaranteed by Design

14.

is 0.6V when the part ist powered up and no DVS is changed. DVS is achieved by modifying V reference.

FB FB

34704

Analog Integrated Circuit Device Data

Freescale Semiconductor

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