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MCZ34701

1.5A Switch-Mode Power Supply with Linear Regulator

Freescale Semiconductor 

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

Table 3. Static Electrical Characteristics (continued)

Characteristics noted under conditions -40°C ≤ TA ≤ 85°C unless otherwise noted. Input voltages VIN1 = VIN2 = 3.3V using

the typical application circuit (see Figure 33), unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

ERROR AMPLIFIER (BUCK CONVERTER)

Input Impedance(11)

Output Impedance(11)

DC Open Loop Gain(11)

Gain Bandwidth Product(11)

Slew Rate(11)

Output Voltage – High Level

VIN1 > 3.3V, IOEA = -1.0mA(11), (12)

Output Voltage – Low Level

IOEA = -1.0 mA(11), (12)

Oscillator Ramp(11)

OSCILLATOR

RIN

ROUT

AVOL

GBW

vSR

V EA_OH

–

500

–

kΩ

–

150

–

Ω

–

80

–

dB

–

35

–

MHz

–

200

–

V/µs

V

–

2.0

–

V EA_OL

–

0.4

V

–

VSCRAMP

–

0.5

–

V

CLKSYN Pin (open) Low Level Output Voltage

IOL = +1.0mA(13)

CLKSYN Pin (open) High Level Output Voltage

IOH = -1.0mA(14)

CLKSYN Pin (grounded) Input Voltage Threshold

CLKSYN Pin Pull-up Resistance

Frequency Adjusting Reference Voltage

BOOST REGULATOR

VOSC_OL

VOSC_OH

VOSC_IH

RPU

VFREQ

–

VDDI

-0.4V

1.2

60

–

–

–

–

–

1.26

0.4

V

V

–

2.0

V

240

kΩ

–

V

Regulator Output Voltage

IBST = 20mA, VIN1 = VIN2 = 2.8V to 6.0V

Power MOSFET Q5 RDS(ON)(11)

IBD = 500mA, TA = 25°C

VBST

7.3

RDS(ON)Q5

–

Regulator Recommended Output Capacitor

CBST

–

Regulator Recommended Output Capacitor Maximum ESR

ESRCBST

–

Notes

11. Design information only. This parameter is not production tested.

12. IOEA Refers to Error Amplifier Output Current.

13. IOL Refers to I/O Low Level

14. IOH Refers to I/O High Level

V

7.7

8.3

mΩ

650

1000

10

–

µF

100

–

mΩ

Analog Integrated Circuit Device Data

Freescale Semiconductor

34701

9

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