MCZ33998EGR2 Freescale Semiconductor, MCZ33998EGR2 Datasheet

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MCZ33998EGR2

Manufacturer Part Number
MCZ33998EGR2
Description
IC BUCK 5V 1.4A TRPL 24SOIC
Manufacturer
Freescale Semiconductor
Type
Step-Down (Buck)r
Datasheet

Specifications of MCZ33998EGR2

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
3
Voltage - Output
5V
Current - Output
1.4A
Frequency - Switching
750kHz
Voltage - Input
6 ~ 26.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (7.5mm Width)
Power - Output
800mW
Switching Frequency
750 kHz
Operating Temperature Range
- 40 C to + 125 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2007. All rights reserved.
Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as
may be required, to permit improvements in the design of its products.
Switching Power Supply with
Linear Regulators
integrated circuit that is capable of operating over a wide input
voltage range, from 6.0 V up to 26.5 V with 40 V transient capability.
It incorporates a sensorless current mode control step-down
switching controller regulating directly to 5.0 V. The 2.6 V linear
regulator uses an external pass transistor to reduce the 33998 power
dissipation. The 33998 also provides a 2.6 V linear standby regulator
and two 5.0 V sensor supply outputs protected by internal low-
resistance LDMOS transistors.
outputs and standard supervisory functions such as resets with
power-up reset delay.
advanced microprocessor architectures such as the MPC5xx and
683xx microprocessor families.
Features
The 33998 is a medium-power, multi-output power supply
There are two separate enable pins for the main and sensor supply
The 33998 provides proper power supply sequencing for
• Operating Voltage Range 6.0 V up to 26.5 V (40 V transient)
• Step-Down Switching Regulator Output V
• Linear Regulator with External Pass Transistor V
• Low-Power Standby Linear Regulator V
• Two 5.0 V @ 200 mA (typical) Sensor Supplies V
• Undervoltage Shutdown on the V
• Reset Signals
• Power-Up Delay
• Enable Pins for Main Supplies (EN) and Sensor Supplies (SNSEN)
• Power Sequencing for Advanced Microprocessor Architectures
• Pb-Free Packaging Designated by Suffix Code EG
1400 mA (total)
400 mA
Against Short-to-Battery and Short-to-Ground with Retry Capability
5.0 V
5.0 V
Figure 1. 33998 Simplified Application Diagram
DDL
, V
DDH
KAM
DDH
Outputs with Retry Capability
= 2.6 V @ 10 mA
KA_VPWR
VPWR
VREF1
VREF2
EN
SNSEN
GND
= 5.0 V @
DDL
REF
33998
= 2.6 V @
Protected
VKAMOK
PWROK
VKAM
VDDH
DRVL
VSW
FBL
MC33998DW/R2
MCZ33998EG/R2
Device
V KAM
V DDH
V DDL
ORDERING INFORMATION
SWITCHING REGULATOR
EG SUFFIX (PB-FREE)
5.0 V
2.6 V
2.6 V
98ASB42344B
24-PIN SOICW
MCU
33998
-40°C to 125°C
DW SUFFIX
Document Number: MC33998
Temperature
Range (T
A
)
Rev. 2.0, 8/2006
24 SOICW
Package

Related parts for MCZ33998EGR2

MCZ33998EGR2 Summary of contents

Page 1

... Power Sequencing for Advanced Microprocessor Architectures • Pb-Free Packaging Designated by Suffix Code EG 5.0 V 5.0 V Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. © Freescale Semiconductor, Inc., 2007. All rights reserved ...

Page 2

... Reg. Retry POR Snsenb Snsenb Enable Control Enb Reg. PwrOK SNSEN EN VSW 5.0 V FBKB VSUM V bg VDDH DRVL 2.6V Enb Linear Regulator FBL 2.6 V Driver Enb 2.6V VKAM 2 Standby Reg. PWRO K VKAMOK VkamOK PGND Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 3

... REF2 pin is sensor supply output #2. REF1 pin is sensor supply output #1. output voltage goes out of the regulation limits this DDH feedback signal for the DDH . An example Analog Integrated Circuit Device Data Freescale Semiconductor DDL ...

Page 4

... When this pin is low, the power supply low quiescent state. Keep-Alive (standby) 2.6 V Regulator Output. This is a 2.6 V low quiescent, low dropout regulator for Keep KAM 24 V Alive memory. 33998 4 Definition REF1 and V REF2 Analog Integrated Circuit Device Data Freescale Semiconductor supplies. ...

Page 5

... C -0 RES V -0.3 to 6.0 SUM FBKB -0.3 to 6.0 DRVL -0.3 to 6.0 FBL -0.3 to 6.0 V ±500 ESD1 V ±100 ESD2 P 800 θ θJB T -40 to 125 A = 1500 Ω). ESD2 testing is performed in ZAP Analog Integrated Circuit Device Data Freescale Semiconductor Unit °C/W °C/W °C ...

Page 6

... Go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts. (i.e. MC33xxxD enter 33xxx), and review parametrics. 33998 6 Symbol STG (7) ( PPRT Value Unit -40 to 150 °C -55 to 150 °C °C Note 8 Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 7

... Analog Integrated Circuit Device Data Freescale Semiconductor Unit µA mA µ Ω ...

Page 8

... VKAM 0 – 100 -20 – 60 – 4.7 – – 1.4 – Analog Integrated Circuit Device Data Freescale Semiconductor Unit Ω Ω µF Ω µF Ω ...

Page 9

... Analog Integrated Circuit Device Data Freescale Semiconductor Unit mΩ mΩ mΩ Ω Ω ...

Page 10

... I PWR PWR VDDH 33998 10 ≤ ≤ ≤ ≤ -40° 125°C, using the typical application circuit (see PWR J A Symbol V CRES = 0 µ µ 25°C under nominal A Min Typ Max Unit V 12 – – 15 Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 11

... A Min Typ Max – 750 – 5.0 – 15 1.0 – 20 1.0 – 10 0.5 – 2.0 5.0 – 20 5.0 – – 30 1.0 – 10 1.0 – 10 Analog Integrated Circuit Device Data Freescale Semiconductor Unit kHz µ ...

Page 12

... Figure 6. PWROK Delay Timer (Power-On Reset) 33998 12 TIMING DIAGRAMS t SS 4.8V TIME Figure 4. Soft-Start Time t Det ??V ??V 2.0V 2.0V t Ret TIME Figure 5. VREF Retry Timer 4.6V t D(PWROK) TIME 4.8V Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 13

... 2.4V t D(VKAMOK) TIME Figure 7. VKAMOK Delay Time t D(VPWR) 2.0V TIME Figure 8. VDDH Power-Up Delay Time 4.7V 4.7V 1.0V t Fault t Fault TIME Figure 9. Fault-Off Timer Delay Time 1.0V Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 14

... Timer shuts the switching regulator off until the timer “times out” and the switching regulator retries to power up again (see Figure 7 for Fault-Off Timer operation details). PWR input pin (see Figure 3), and the other input pin. In both PWR or V output DDH DDL Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 15

... The VKAMOK signal indicates a severe fault condition on the keep-alive regulator output V KAM . The V voltage is compared to the internal bandgap reference voltage. When the V falls below the bandgap reference KAM voltage level, the VKAMOK signal is pulled low. Analog Integrated Circuit Device Data Freescale Semiconductor KAM output ...

Page 16

... FBKB 11 VSUM Rc1 2.2nF 3. VDDH 15 DRVL 2.6V Enb Q1 Linear 13 V DDL = 2.6V Regulator FBL Driver @ 400mA 100nF 68uF Enb V KAM = 2.6V VKAM 2. Standby 24 Reg 4.7uF 10k 10k PWROK 10 VKAMOK 1 VkamOK 5-8 GND 17-20 Analog Integrated Circuit Device Data Freescale Semiconductor @ 10mA ...

Page 17

... While Freescale Semiconductor offers component recommendations in this configuration the customer’s responsibility to validate their application. 17. Freescale Semiconductor does not assume liability, endorse, or warrant components from external manufacturers that are referenced in circuit drawings or tables. While Freescale Semiconductor offers component recommendations in this configuration the customer’s responsibility to validate their application. 33998 17 Description / Part No ...

Page 18

... For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. 33998 18 PACKAGING PACKAGE DIMENSIONS DWB SUFFIX EG SUFFIX (PB-FREE) 24 PIN SOIC WIDE BODY PLASTIC PACKAGE 98ASB42344B ISSUE F Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 19

... Removed MC33998EG/R2, and replaced with MCZ33998EG/R2 in the Ordering Information block • Removed Peak Package Reflow Temperature During Reflow (solder reflow) parameter from Maximum Ratings on page Analog Integrated Circuit Device Data Freescale Semiconductor REVISION HISTORY 5. Added note with instructions from www.freescale.com. REVISION HISTORY ...

Page 20

... Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer ...

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