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参数资料
| 型号： | TPS61240YFFR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.45 A SWITCHING REGULATOR, 3500 kHz SWITCHING FREQ-MAX, BGA6 |
| 封装： | 0.40 MM PITCH, GREEN, DSBGA-6 |
| 文件页数： | 20/26页 |
| 文件大小： | 755K |
| 代理商： | TPS61240YFFR |
www.ti.com
SLVS806A – APRIL 2009 – REVISED MAY 2009
ELECTRICAL CHARACTERISTICS
Over full operating ambient temperature range, typical values are at TA = 25°C. Unless otherwise noted, specifications apply
for condition VIN = EN = 3.6V. External components CIN = 2.2mF, COUT = 4.7mF 0603, L = 1mH, refer to PARAMETER
MEASUREMENT INFORMATION.
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
UNIT
DC/DC STAGE
VIN
Input voltage range
2.3
5.5
V
VOUT
Fixed output voltage range
2.3 V
≤ VIN ≤ 5.5 V, 0 mA ≤ IOUT ≤ 200 mA
4.9
5.0
5.1
V
VO_Ripple
Ripple voltage, PWM mode
ILOAD = 150 mA
20
mVpp
Output current
VIN 2.3 V to 5.5 V
200
mA
VOUT = VGS = 5.0 V (TPS61240)
500
600
Switch valley current limit
mA
VOUT = VGS = 5.0 V (TPS61241)
600
700
Short circuit current
VOUT = VGS = 5.0 V
200
350
mApk
High side MOSFET on-resistance(1) VIN = VGS = 5.0V, TA = 25°C
(1)
290
m
Low Side MOSFET on-resistance(1)
VIN = VGS = 5.0 V, TA = 25°C
(1)
250
m
Operating quiescent current
IOUT = 0 mA, Power save mode
30
40
mA
ISW
Shutdown current
EN = GND
1.5
mA
Reverse leakage current VOUT
EN = 0, VOUT = 5 V
2.5
mA
Leakage current from battery to
EN = GND
2.5
mA
VOUT
VIN 600 mVp-p AC square wave, 200Hz,
Line transient response
±25
±50
mVpk
12.5% DC at 50/200mA load
0–50 mA, 50–0 mA VIN = 3.6V TRise = TFall = 0.1ms
50
Load transient response
mVpk
50–200 mA, 200–50 mA, VIN = 3.6 V, TRise = TFall = 0.1ms
150
IIN
Input bias current, EN
EN = GND or VIN
0.01
1.0
mA
Falling
2.0
2.1
V
VUVLO
Undervoltage lockout threshold
Rising
2.1
2.2
V
CONTROL STAGE
VIH
High level input voltage, EN
2.3 V
≤ VIN ≤ 5.5 V
1.0
V
VIL
Low level input voltage, EN
2.3 V
≤ VIN ≤ 5.5 V
0.4
V
Falling
5.9
OVC
Input over-voltage threshold
V
Rising
6.0
Time from active EN to start switching, no-load until VOUT
tStart
Start-up time
300
ms
is stable 5V
DC/DC STAGE
Freq
3.5
MHz
Thermal shutdown
Increasing junction temperature
140
°C
TSD
Thermal shutdown hysteresis
Decreasing junction temperature
20
°C
(1)
DRV package has an increased RDSon of about 40m due to bond wire resistance.
Copyright 2009, Texas Instruments Incorporated
3
Product Folder Link(s) :TPS61240, TPS61241
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